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Chemical Forums > Chemistry Forums for Students > Analytical Chemistry Forum (Moderator: Borek)

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	Analytical Chemistry Forum for Graduate Students and Professionals This is a forum for analytical graduate students and professionals to ask and answer each other's questions.	269 Posts 83 Topics	Last post by Dwain in Choosing between Thermos... on November 04, 2009, 01:12:39 PM

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	Subject	Started by	Replies	Views	Last post
ash2006rf and 10 Guests are viewing this board.
	Good classical analytical chemistry books	Borek	11	2852	November 02, 2009, 08:32:50 PM by windandfly407
	Problem with zinc determination	Golden_4_Life	11	1122	October 23, 2009, 05:56:59 AM by getthegirlfriend
	What titrations have you tried?	Borek	32	17048	August 31, 2009, 04:29:46 AM by Ida Isotope
	What gravimetric analysis have you tired?	Alberto_Kravina	6	6505	March 26, 2008, 08:27:43 AM by alhemicar
	FORUM RULES: READ THIS BEFORE POSTING!	Mitch	0	5704	April 23, 2004, 06:36:48 PM by Mitch
	extraction	machozitatu	2	60	Today at 02:17:31 AM by machozitatu
	MDL	tinapratiwi	6	399	Yesterday at 02:45:36 PM by tinapratiwi
	SODIUM BOROHYDRIDE	tinapratiwi	5	219	Yesterday at 02:44:06 PM by tinapratiwi
	ACS exam preperation?	Enantiomer	0	31	November 17, 2009, 01:45:07 PM by Enantiomer
	phenolpthalein problem	ece421	3	60	November 17, 2009, 12:57:47 PM by marquis
	A Dilution Problem, very short : Requires one word answer.	istrydummy	5	78	November 17, 2009, 08:40:33 AM by istrydummy
	Conversion Units. Critical...	gggggggggg	3	68	November 17, 2009, 05:33:24 AM by Dan
	Order of Elution Question (CE)	hawk	0	48	November 16, 2009, 08:41:21 AM by hawk
	AAS FOR SILVER?	tinapratiwi	9	616	November 13, 2009, 05:34:49 PM by ToxLabRat
	activity coefficent	faith	1	55	November 13, 2009, 01:14:46 PM by Borek
	MOVED: HELP ME PLEASE !!!	Borek	0	80	November 13, 2009, 01:29:00 AM by Borek
	using activites to calculate hydronium concentration and pH	organiclove	1	62	November 12, 2009, 08:34:13 PM by Borek
	Material (mass) balance Expression?	Deafboy	1	87	November 11, 2009, 09:16:45 PM by Borek
	Titration by using UV-Visible spectrophotometer or photometer	Ibin-Huan	1	127	November 11, 2009, 02:30:29 PM by marquis
	Chemistry and the Environment: Share Great Ideas Here !!!	donsayuriru	2	444	November 09, 2009, 06:46:14 AM by JGK
	Zinc more reactive than Copper - Why?	sodiumman	1	187	November 08, 2009, 08:06:06 PM by Schrödinger
	analytical chemistry	Raj Prabhugari	2	118	November 08, 2009, 08:24:52 AM by sjb
	Calculating the solute (osmosis) potential	NickHolt	1	161	November 07, 2009, 06:52:32 AM by Borek
	Ozone Generator Calibration--Reason for Measurement Value Decrease?	wzhu	11	455	November 06, 2009, 04:27:16 PM by wzhu
	Dilution Question	mike s.	2	292	November 05, 2009, 11:15:39 AM by Golden_4_Life
	terms in spectroscopy	mercury	1	145	November 05, 2009, 05:22:30 AM by JGK
	How to find how much oxygen gas is liberated from hydrogen peroxide?	mondotwistedmojo	0	183	November 03, 2009, 12:50:55 PM by mondotwistedmojo
	The Absorbtion Spectrum of Hemoglobin- Need urgent help with some calculations.	gggggggggg	4	296	November 03, 2009, 05:05:27 AM by JGK
	MINERAL ANALYSIS fluoride	byzas	2	183	November 03, 2009, 01:01:56 AM by byzas
	g/mL to ppm Conversion (aqueous solution)	CopperSmurf	9	8206	November 02, 2009, 05:30:41 AM by MikeF
	Help with determination of HCl	PseudoKemist	0	151	October 30, 2009, 09:07:16 AM by PseudoKemist
	MOVED: SILVER REACTION	Borek	0	99	October 29, 2009, 10:21:57 PM by Borek
	Ionic strength borate buffer	Merrels	10	584	October 27, 2009, 08:54:36 AM by AWK
	% Recovery of spiked Analyte >100%. Violation of Thermodynamic Law?	Golden_4_Life	2	191	October 27, 2009, 08:07:50 AM by Golden_4_Life
	Ion analysis - recording and observations	CIE alevel	1	180	October 26, 2009, 09:40:15 PM by CIE alevel
	GC problem of standard curve&quantity analysis	MSKim	1	192	October 26, 2009, 11:18:08 AM by steven
	urgent question	KIM521	1	159	October 25, 2009, 09:45:44 PM by CIE alevel
	just a question	fatma	1	195	October 25, 2009, 04:21:33 PM by fatma
	Do amine and ketone/aldehyde suppress signal in electrospray (ESI)?	bstanley	1	193	October 24, 2009, 07:40:31 AM by MOTOBALL
	First GC problems	Synnr01	3	270	October 24, 2009, 07:22:27 AM by chiralic
	conversion factor	malteser16	3	215	October 23, 2009, 11:59:17 PM by Borek
	titration of Potassium manganate(VII) with an ethanedioate?	CIE alevel	6	322	October 22, 2009, 12:52:37 AM by CIE alevel
	Back Titration of CaCO3	darkryder341	1	424	October 21, 2009, 07:26:08 PM by nj_bartel
	Making 1000 ppm solution of Fluoride ion.	mranonym	1	189	October 21, 2009, 11:46:46 AM by JGK
	Analytical Application Help	JGK	0	128	October 21, 2009, 04:14:06 AM by JGK
	Varian Galaxie	tnelson	5	2971	October 20, 2009, 09:41:57 AM by JGK
	buffer solution problem	sharon	2	251	October 20, 2009, 05:00:44 AM by diablo
	Sensitivity in gascromatograph y	jj74	3	303	October 19, 2009, 07:16:36 PM by jj74
	What is the difference betwwen photometer, spectrophotometer & spectrometer	Ibin-Huan	5	560	October 19, 2009, 03:56:58 PM by ykprakash
	Half wave potential problem	adianadiadi	2	273	October 19, 2009, 08:02:09 AM by adianadiadi
	Dissolving Ru for AAS	dfodor	0	107	October 19, 2009, 05:43:20 AM by dfodor
	calculating solubilties at a fixed pH	Bacillus98	5	255	October 16, 2009, 11:14:31 PM by Borek
	Concentration calculation: comparing gas phase and liquid phase??	sweet_question	5	396	October 16, 2009, 05:27:34 AM by JGK
	how many moles of KMnO4 pipetted from the 250 cm3 graduated flask...?	CIE alevel	5	267	October 16, 2009, 04:28:32 AM by DrCMS
	Urea content	darin	3	376	October 14, 2009, 06:55:26 AM by steven
	Analytical chemistry practical titration (thiosulphate)	CIE alevel	4	598	October 14, 2009, 06:11:03 AM by CIE alevel
	determination of aluminum	kyleasdfjkl	2	400	October 12, 2009, 07:49:07 PM by kyleasdfjkl
	Absorption spectrophotometry- multiple point calibration	formulations4me	0	201	October 12, 2009, 05:41:23 AM by formulations4me
	Activity	gobuckskb9	2	267	October 11, 2009, 09:31:49 PM by Borek
	problem with Sulphide in organic matter analysis	carnation	0	149	October 11, 2009, 08:35:04 PM by carnation
	enzyme kinetic	naj4279	1	216	October 11, 2009, 12:09:31 PM by Yggdrasil
	How to calculate the number of moles of Fe2+ produced in the reaction?	mark1950	6	421	October 11, 2009, 04:22:13 AM by Borek
	The pAg in a titration	Benzene21	4	292	October 11, 2009, 12:23:28 AM by Borek
	Book of extensive pKa/pKb tables	Dan	7	1072	October 10, 2009, 12:15:57 PM by daloy
	HP-1 GC column vs. water	dfodor	3	426	October 10, 2009, 11:34:45 AM by dfodor
	Calibrated pH meters	educateme	6	424	October 09, 2009, 10:20:45 PM by Borek
	Standard ethanol solutions for a calibration curve	chi	1	263	October 09, 2009, 08:49:42 AM by Borek
	IR for boron-oxygen bonds	cth	0	192	October 09, 2009, 05:29:32 AM by cth
	ICP analysis of halogens	patg	1	236	October 08, 2009, 08:03:54 AM by renge ishyo
	Solubility Question..... or is it?	MightyMan	21	849	October 07, 2009, 06:02:10 PM by inispree
	i need some help balancing a hard equation	chris	3	278	October 07, 2009, 01:03:30 PM by Borek
	Conductivity measurement using Kohlrausch Law	coolengineer	1	288	October 06, 2009, 09:30:42 PM by Borek
	Magnetite Question	Deafboy	1	230	October 04, 2009, 08:55:21 PM by Borek
	Calculate Molarity from a given Ionic strength?	Deafboy	2	280	October 04, 2009, 11:56:00 AM by Borek
	How to detect Si(CH3)4?	mist	1	339	October 04, 2009, 05:58:51 AM by marquis
	M+3 peak in Mass Spectrometry	interminable	4	362	October 02, 2009, 02:13:55 PM by MOTOBALL
	GBC AAS problem	ahwie	1	330	September 30, 2009, 03:46:37 PM by marquis
	problems with ICP and/or software	rhb1	5	530	September 29, 2009, 05:29:08 AM by rhb1
	cleaning glassware with toluene vs xlyene	zim_lab	5	818	September 29, 2009, 01:26:01 AM by srochat
	about HPLC, question calculate the conc. of unknow	111	3	760	September 27, 2009, 08:56:14 AM by marquis
	Charge balance and the mass balance	sheephung	4	535	September 25, 2009, 06:39:56 AM by sheephung
	p-chloro-m-xylenol--has anyone ever tried to analyze a liquid sample for it?	Golden_4_Life	2	297	September 24, 2009, 08:09:56 AM by Golden_4_Life
	BOC in AAS analysis	vlp2228	0	195	September 21, 2009, 04:17:41 PM by vlp2228
	MOVED: Product Analysis/Development Wanted	Borek	0	221	September 21, 2009, 12:17:37 AM by Borek
	NeedHelpTimeSensitive: A/B Titration, pH, KHP	HoffMan	1	394	September 20, 2009, 11:10:36 AM by Borek
	Titration of KHP by NaOH, confidence limit of unknown KHP	formulations4me	3	967	September 20, 2009, 06:39:37 AM by Fridushka
	Isotope dilution, and quantification of LC-MS	mooming	0	230	September 19, 2009, 11:04:54 AM by mooming
	Breakage of chemical structure	dastgir	0	187	September 19, 2009, 04:56:10 AM by dastgir
	Extractions from blood serum	Jaomski	1	356	September 18, 2009, 11:21:53 AM by Don Shelly
	Low temperature DSC standards	PolymerKnowHow	2	412	September 17, 2009, 09:35:00 AM by PolymerKnowHow
	VARIAN GT -100	Nelo	3	492	September 14, 2009, 01:51:47 PM by marquis
	spectrophotometric titration curves	Butterfly	1	397	September 14, 2009, 09:54:54 AM by Borek
	ppm and ppmv for gases in the atmosphere (catch my nooby mistake?)	CopperSmurf	3	719	September 13, 2009, 05:58:25 AM by Borek
	Solubility with taking protolysis under consideration	plankk	3	355	September 13, 2009, 05:54:55 AM by Borek
	electrothermale atomic absorption spectrometry ( ETAAS) , help me	Nelo	0	310	September 11, 2009, 10:47:45 AM by Nelo
	Recovery from SPE method	missaturn	2	808	September 10, 2009, 08:53:20 AM by Don Shelly
	Acetic acid and GC analysis	mir	5	3241	September 10, 2009, 08:48:12 AM by Don Shelly
	Enthalpy of hydration of copper sulfate	fotofriends	1	616	September 09, 2009, 10:53:17 PM by Borek
	Content Management System	WebriQ	0	188	September 09, 2009, 10:45:22 PM by WebriQ
	Mass Balance Equations	FAC208aussie	0	360	September 09, 2009, 06:30:19 PM by FAC208aussie
	analytical chemistry	sheetalty	1	386	September 08, 2009, 12:24:30 AM by Borek
	Electrolyte Conductivity.	Gareth	2	558	September 06, 2009, 10:01:54 PM by hightlow
	Separating excipient from actives for ID of pharmaceuticals	AnalyticalPhill	4	579	September 05, 2009, 05:04:44 AM by AnalyticalPhill
	need help desperately	sharon	1	439	August 30, 2009, 08:20:00 PM by Johnny010
	nmr spectra	rjb641	2	491	August 30, 2009, 08:11:11 PM by Johnny010
	Ascorbic Acid in cabbage and orange juice	McCoy	2	645	August 29, 2009, 09:47:48 PM by Borek
	ICP Trouble-shooting	sisa.krele	1	520	August 28, 2009, 05:05:02 PM by Lorax
	Which approach is correct?	plankk	6	622	August 28, 2009, 11:23:39 AM by plankk
	EDTA calculations	freddy	3	670	August 24, 2009, 01:54:44 AM by Borek
	How to define or calculate the peak width of a flat-top peak?	mingh	1	622	August 23, 2009, 05:15:42 PM by Golden_4_Life
	Calculating pH after the equivalence point	UG	5	911	August 21, 2009, 10:11:05 PM by UG
	Why Calcium Hydroxide must be prepared early?	User1234	2	606	August 20, 2009, 08:55:29 AM by renge ishyo
	Reagents that are all clumped or formed a hard ball?	labrat356	1	450	August 20, 2009, 08:42:56 AM by Johnny010
	pH deionized water	tchristides	2	1407	August 20, 2009, 01:32:03 AM by Johnny010
	Myoglobin and beta-lactoglobulin	hahahanna	0	427	August 18, 2009, 12:09:18 PM by hahahanna
	assay on anydrous basis and assay on dried basis	garima	1	638	August 17, 2009, 03:06:59 PM by JGK
	How to measure concentration of Fe2+ and Fe3+	s4kho	1	655	August 17, 2009, 11:30:39 AM by Borek
	Ascorbate and Polypropylene HPLC vial interactions?	ChrisMasterjohn	1	494	August 16, 2009, 09:05:06 AM by marquis
	College level ICP experiments	kinat	7	820	August 16, 2009, 08:52:16 AM by marquis
	Where do you buy your chemicals?	ArchStanton	0	351	August 16, 2009, 06:56:45 AM by ArchStanton
	Barbets test - permanganate test (on ethanol)	stillton	0	371	August 16, 2009, 06:16:51 AM by stillton
	Choice of platform for Hg and As in drugs (herbal, western), blood, urine	Edward	0	307	August 15, 2009, 10:54:24 PM by Edward
	Flow Injection Analysis FIA	zeoblade	2	492	August 15, 2009, 10:19:08 PM by zeoblade
	ICP-MS In Academia-Success Stories	ToxLabRat	1	552	August 15, 2009, 06:33:09 AM by renge ishyo
	ICP - AES RF Coil Issues	ALW	3	1354	August 14, 2009, 07:11:25 PM by ToxLabRat
	Procedure for analysing Dioxin, PCB like dioxin, PCDD, PCDF... in sample	braveking	3	706	August 13, 2009, 01:40:05 PM by JGK
	Iron Determination by KMNO4 titration	psyche115	2	2042	August 11, 2009, 06:37:31 AM by Borek
	ask for help-- MASS SEPCTROMETRY NO SIGNAL	tozlj525	2	519	August 10, 2009, 10:32:07 PM by tozlj525
	Determination of zinc	HouseMD	0	307	August 10, 2009, 10:21:31 AM by HouseMD
	I need help with the following questions...	Einadin	7	653	August 10, 2009, 03:43:08 AM by Einadin
	Project: Separating NaNO2 from NaCl	Lanthanide	5	840	August 08, 2009, 01:49:27 PM by billnotgatez
	Selective Oxidation	bblue	2	577	August 08, 2009, 04:41:56 AM by zxt
	RRT and RRF DIFFERENCE	sony	5	1035	August 07, 2009, 03:44:22 AM by JGK
	atomic weight percents	tone999	3	598	August 07, 2009, 01:40:31 AM by zxt
	Analytical Pre-concentration/extraction	Luca	1	481	August 06, 2009, 09:30:48 AM by Mansouri
	standard chemicals for UV spectrometer- very emergency!	braveking	3	823	August 05, 2009, 08:34:41 AM by Mansouri
	Calculating dissociatio const for competitive binding	Signifier	0	301	August 03, 2009, 09:46:18 AM by Signifier
	to identify sodium nitrite	malteser16	4	888	August 02, 2009, 08:59:36 AM by sjb
	Need a sepparation membrane	Jedi Master	1	751	July 29, 2009, 09:48:06 AM by Mansouri
	HPLC: install capillaries	Homer Jay	1	631	July 29, 2009, 09:40:40 AM by Mansouri
	High Performance Liquid Chromatography	nicola hatliff	2	683	July 28, 2009, 11:28:02 PM by nicola hatliff
	SilverChromate Test Paper	uhlan1	1	578	July 23, 2009, 03:59:27 AM by uhlan1
	Scanning electron Microscope	nisha1	3	630	July 21, 2009, 11:25:47 PM by nisha1
	SEM-EDS results interpretation	martyn11post	0	431	July 21, 2009, 12:20:26 PM by martyn11post
	How is the following expression for E_eq derived in this redox titration?	cncbmb	2	597	July 20, 2009, 06:22:47 PM by cncbmb
	MOVED: langmuir isotherm	Borek	0	440	July 19, 2009, 09:25:14 PM by Borek
	dilution	nisha1	3	667	July 19, 2009, 09:24:21 PM by Borek
	Back titration question	CIE alevel	4	1670	July 19, 2009, 04:23:15 AM by marquis
	Difference between Quality Assurance Programs and Measurement Assurance programs	analytical	1	598	July 18, 2009, 09:54:19 PM by Borek
	CALCULATING POTENTIAL	bblue	3	587	July 18, 2009, 01:03:03 PM by Borek
	STANDARD REDUCTION POTENTIALS	bblue	0	617	July 18, 2009, 08:27:58 AM by bblue
	Neat standard Curve	toxman	1	609	July 17, 2009, 01:12:23 PM by Lorax
	ICP analysis	nextpauling	9	1944	July 17, 2009, 01:07:57 PM by Lorax
	When to include [OH-] in the charge balance for aqueous solution?	cncbmb	0	569	July 17, 2009, 11:25:48 AM by cncbmb
	Electrothermal atomization	almost	1	647	July 17, 2009, 11:10:47 AM by Fleaker
	thermogravimetric analysis! PEG	bblue	1	807	July 17, 2009, 11:07:52 AM by Fleaker
	Mixing Acid and Base Solutions	cncbmb	0	396	July 17, 2009, 09:43:59 AM by cncbmb
	pH after a reaction	angstridd3n	10	1340	July 13, 2009, 11:31:53 PM by AWK
	Titration of diprotic acid	arctic-cube	1	873	July 13, 2009, 09:36:00 AM by DocDingwall
	Calcein Fluorescence	just_in	2	806	July 12, 2009, 08:52:11 AM by just_in
	Measurement Control (or Assurance) Programm	analytical	3	686	July 11, 2009, 01:24:44 AM by analytical
	uv/ vis spectroscopy	gaheat	2	838	July 10, 2009, 05:02:29 AM by marquis
	I just dont get how the measurement of a pH-meter works, please help.	Gargamel	8	1088	July 08, 2009, 09:31:42 PM by Borek
	qualitatve analysis	missaturn	0	423	July 03, 2009, 07:52:22 AM by missaturn
	Hypochlorite determination possible?	jcjlf	5	894	July 03, 2009, 03:00:15 AM by jcjlf
	Detection of Heavy Metals in Potassium Permanganate	niku2803	6	1063	July 02, 2009, 08:30:03 AM by marquis
	Dichromate Titration Question (with iron II and iron III sulphates)	Lou Reed	4	943	July 01, 2009, 01:00:49 PM by Borek
	Sampling technique.	o0CY0o	3	1249	July 01, 2009, 12:20:00 PM by kilroy
	Isophthalate peak in GCMS	agro	1	771	June 30, 2009, 08:46:41 AM by marquis
	GRE chemistry subject question	kimxx972	3	972	June 28, 2009, 05:10:47 AM by kimxx972
	Phosphate Estimationm	dastgir	1	772	June 26, 2009, 06:08:03 AM by kevins
	pH calculation question	Paulo1913	11	2054	June 24, 2009, 09:35:05 PM by vhpk
	EDTA TITRATION	ramsuthar2001	2	1177	June 24, 2009, 09:16:39 PM by Borek
	TGA...	bblue	0	473	June 24, 2009, 10:10:53 AM by bblue
	MOVED: Long but quick chemistry lab that I need confirmation on answers	Borek	0	535	June 21, 2009, 05:57:22 AM by Borek
	Solubility equilibrium constant problem	nokia8650	3	1045	June 20, 2009, 04:55:56 AM by Borek
	MOVED: ipa and oxygen	Borek	0	427	June 18, 2009, 09:41:31 AM by Borek
	Real Gases delete me	Gweedo8	1	612	June 18, 2009, 09:40:59 AM by Borek
	MOVED: Why does it say Delete ME every time I post a question?	Borek	0	443	June 18, 2009, 09:39:39 AM by Borek
	SOLUBILITY!!	bblue	17	1498	June 18, 2009, 04:44:11 AM by killer120
	sonication with aluminum foil wrapped flask	mehc	1	733	June 16, 2009, 04:03:06 AM by azmanam
	Strong-Base Titration of Mixed Strong Monoprotic and Weak Polyprotic acids!!	bblue	1	1046	June 13, 2009, 10:42:53 PM by Borek
	UV Spec Iron calibration curves	tchristides	0	467	June 13, 2009, 11:55:08 AM by tchristides
	How to find out the amount of catechins there is in green tea?	ctyemilyxx	1	645	June 13, 2009, 08:15:04 AM by MOTOBALL
	Reduction of dichromate question?	bamster	2	918	June 11, 2009, 10:15:50 PM by Borek
	pH value of a solution	firecard	4	957	June 11, 2009, 09:45:24 PM by AWK
	Mass expressed as Fe2O3 in total sample?	bamster	6	1053	June 11, 2009, 01:47:51 PM by bamster
	Finding maximum mass...	bblue	5	1040	June 08, 2009, 08:19:35 PM by Borek
	Stability of aquaous l-ascorbic acid	firecard	1	766	June 07, 2009, 09:50:55 AM by wpenrose
	I need a genuis to help: osomolarity	pharma	6	1087	June 05, 2009, 10:45:57 PM by Borek
	how to mak 0.067 M phosphate buffer	mehc	7	2031	June 05, 2009, 06:04:11 AM by mehc
	CHCl3 and ITO electrodes	mattfred	1	748	June 04, 2009, 10:22:46 AM by mattfred
	Anion Analysis	arctic-cube	0	502	June 04, 2009, 07:46:40 AM by arctic-cube
	Need Help	tseug	1	631	June 04, 2009, 03:21:20 AM by Borek
	MOVED: New web of methods of analysis	Borek	0	519	June 02, 2009, 11:39:58 PM by Borek
	Solubility -- Diverse Ion Effect	bblue	3	929	June 01, 2009, 09:25:53 AM by Borek
	EPA methods on cyanide detection	rick112	1	828	June 01, 2009, 02:18:23 AM by el13
	CALCULATING MASS THAT WILL DISSOLVE IN 100 mL OF WATER!!	bblue	3	1092	May 31, 2009, 04:04:37 PM by bblue
	Checking Acetaldehyde on Glucometer	vijay_bb2002	2	944	May 28, 2009, 10:23:10 PM by vijay_bb2002
	How to Differentiate Between Ionic / Concentrated Constituents?	Rugby Stud	2	760	May 28, 2009, 08:12:41 AM by Rugby Stud
	HPLC ghost peaks in gradient run	udayasena	3	1229	May 28, 2009, 06:00:48 AM by marquis
	Over Titration	OhMyGawd	3	1116	May 27, 2009, 08:47:12 PM by Borek
	Quest for a chemical/substance...	PurplePixiePia	0	526	May 27, 2009, 11:12:43 AM by PurplePixiePia
	Dimercaprol	sven21	0	468	May 27, 2009, 06:39:59 AM by sven21
	volumetric glass commensurability (?)	Borek	5	1022	May 27, 2009, 03:54:48 AM by Train
	l-ascorbic acid versus dl-ascorbic acid	squeeky	1	878	May 26, 2009, 06:32:21 PM by nj_bartel
	Why can't I get consistant pH readings from my Hanna HI 99171?	David from Charleston	2	915	May 23, 2009, 05:47:32 AM by David from Charleston
	Making Mobile Phase	yy	6	1222	May 22, 2009, 05:33:53 AM by JGK
	IU/mg to % Polymyxin B Sulphate	gilly	2	964	May 21, 2009, 08:24:32 PM by gilly
	titration site	Borek	5	1455	May 21, 2009, 07:27:45 PM by NP1957
	Measuring iron solubility using lambda max	tchristides	0	588	May 21, 2009, 12:01:36 PM by tchristides
	COD test interferences due to presence of hydrogen peroxide	glengraff	1	1321	May 21, 2009, 03:04:57 AM by hande
	gravimetric determination of sulfate	bamster	3	1073	May 20, 2009, 11:26:20 AM by ARGOS++
	gcms	sullator	1	810	May 20, 2009, 08:25:43 AM by Borek
	finding litres from change in pH?	kaynable	2	791	May 19, 2009, 05:24:46 PM by kaynable
	Mass Spectroscopy	rita87	3	1004	May 17, 2009, 05:07:41 PM by rita87
	how can I find the amount of oxygen in a compound?	treelove	8	1111	May 17, 2009, 10:34:56 AM by Borek
	Equilibrium calculations in a buffert solution	hybris	4	955	May 13, 2009, 09:00:26 PM by hybris
	Equilibrium calculations!	TMT20	1	727	May 13, 2009, 07:30:10 PM by AWK
	Redox titration-iron	treelove	3	1082	May 11, 2009, 06:55:56 PM by treelove
	Question on the calculation of equlibrium constant	o0CY0o	3	892	May 10, 2009, 03:05:47 AM by o0CY0o
	Question on photon detector.	o0CY0o	3	772	May 09, 2009, 07:58:48 AM by ARGOS++
	Titration VS UV/vis spectroscopy	ceres	3	1027	May 09, 2009, 03:11:21 AM by ceres
	peak heights in carbon-13 nmr specta	robert_l	4	1173	May 09, 2009, 02:49:48 AM by rita87
	Analytical Chemistry	agro	2	785	May 09, 2009, 02:28:20 AM by agro
	HPLC Stationary Structure C18	yy	1	892	May 07, 2009, 07:38:23 PM by Train
	Measuring pH	Train	8	1280	May 07, 2009, 05:16:48 PM by Train
	ACS analytical exam	spirochete	5	2584	May 05, 2009, 08:41:08 PM by nv198
	Mole ratio	sven21	4	1632	May 05, 2009, 01:32:45 AM by sven21
	Flame photometry	yy	5	1386	May 03, 2009, 08:42:48 AM by Fleaker
	determination of calcium in a sample	Marija	9	1283	May 01, 2009, 12:47:31 AM by Marija
	Coulometric titration of vitamin C, pretty basic	spirochete	3	1073	April 29, 2009, 06:17:05 AM by Borek
	I need help understanding this..... plzzz help me :)	Danielle	2	813	April 29, 2009, 04:13:22 AM by mehc
	Service manual for 5100PC atomic absorption instrument	RGW	2	1397	April 27, 2009, 09:35:10 AM by RGW
	this doesn't make any sense	Danielle	3	895	April 27, 2009, 06:13:06 AM by AWK
	Chlorine chemistry	aldoxime_amine	2	847	April 27, 2009, 12:13:32 AM by Marija
	Confusing Words	dastgir	4	925	April 26, 2009, 04:20:05 AM by dastgir
	Charring	dastgir	8	1043	April 26, 2009, 04:11:11 AM by dastgir
	Potentiometric Determination of Iodide and Chloride in a Sample	nj_bartel	9	1259	April 25, 2009, 11:48:03 PM by Borek
	Are tannins and polyphenols mean same?	mehc	2	982	April 25, 2009, 05:11:31 AM by mehc
	Determining concentration of H2O2 by titration	Spring Lady	5	1655	April 25, 2009, 02:57:05 AM by Spring Lady
	HPLC/MS/MS	rita87	2	1249	April 23, 2009, 12:08:44 PM by rita87
	How to calculate potency of peptide	JSM	6	1468	April 22, 2009, 01:07:56 AM by JSM
	FLAAS Question	chrisbb	1	736	April 21, 2009, 02:43:07 PM by chrisbb
	looking for project	Rachel	3	828	April 21, 2009, 02:42:17 PM by chrisbb
	Ferrofluids relation to electrochemistry	ngray	3	734	April 21, 2009, 02:33:04 PM by ARGOS++
	Cao and Ca(OH)2	dastgir	0	864	April 21, 2009, 04:59:34 AM by dastgir
	Beer Lambert Law	dastgir	3	1558	April 18, 2009, 11:39:07 AM by ARGOS++
	Doubt in H-1 NMR Spectroscopy	gpavanb	2	766	April 18, 2009, 06:17:07 AM by gpavanb
	Question regarding high UV transmittance (~300%)	Analyst88	1	759	April 16, 2009, 01:33:52 PM by ARGOS++
	Decomposition of Au (I) thiosulfate complex into gold sulfide over a support.	beryaug	0	502	April 16, 2009, 02:54:21 AM by beryaug
	NMR and spin number	ziyadsara	0	489	April 15, 2009, 05:49:01 PM by ziyadsara
	pH	faith	0	544	April 15, 2009, 12:17:08 PM by faith
	Whats the purpose of converting cobalt compounds to Co(SCN)4 -2?	torturedillini	0	566	April 15, 2009, 09:45:16 AM by torturedillini
	Please set me straight on Internal Standard question.	RoeToe	2	872	April 15, 2009, 09:15:59 AM by RoeToe
	Conc. presentation	dastgir	5	898	April 15, 2009, 01:05:05 AM by Borek
	Cuantification of Si, Mn, Fe in alloy	Lectos	9	1165	April 14, 2009, 07:08:18 PM by Lectos
	EDTA normality	pasky	20	10127	April 14, 2009, 03:46:05 PM by dastgir
	Mass spectroscopy	Dolphinsiu	2	784	April 14, 2009, 03:56:35 AM by Dolphinsiu
	CCD detector	ImageCCD	0	443	April 13, 2009, 07:05:12 AM by ImageCCD
	I have a question about dilution	Bashir2008	2	956	April 12, 2009, 06:52:25 AM by mercury
	epi aristolochene, a sesquiterpene hydrocarbon	bobs	0	479	April 10, 2009, 12:25:29 PM by bobs
	i have a question about pH	Bashir2008	6	1033	April 09, 2009, 11:39:01 AM by Borek
	unit for chloramines	missaturn	0	434	April 09, 2009, 06:52:19 AM by missaturn
	Determination of lead in alloy	McCoy	3	775	April 06, 2009, 09:30:04 PM by McCoy
	detection limit	luvmona20	1	834	April 06, 2009, 04:01:04 AM by JGK
	Same solution with 2 different wavelengths on different UV instruments ?	sgutala	2	733	April 05, 2009, 05:11:31 AM by ARGOS++
	FTIR analysis of epoxies	Protoge1	0	504	April 04, 2009, 05:27:34 PM by Protoge1
	Is propylene glycol VAPOR toxic?	jaebaeli	2	965	April 04, 2009, 11:20:18 AM by Arkcon
	what ration do i use to make 48wt% HF to 3wt% HF? Please help	wally7	6	1671	April 03, 2009, 03:15:06 PM by Fleaker
	determination of Platinum (Gravimetric Method)	Cheryl	1	808	April 03, 2009, 03:06:26 PM by Fleaker
	Acid base equilibium - polyprotic acids	Lectos	1	847	April 02, 2009, 09:18:35 PM by Borek
	Titration Calculations help please	ItalianChick0188	12	1765	April 02, 2009, 08:57:36 AM by Borek
	column for lcmsms	bobs	1	640	April 02, 2009, 12:54:55 AM by Arkcon
	Required E-BOOKS in pdf format (Free DOWNLOAD)	irfan	3	3192	March 31, 2009, 06:49:17 AM by Borek
	Fluorimetry	yy	1	972	March 28, 2009, 12:39:57 AM by Borek
	Buffer question	gidget	3	813	March 27, 2009, 11:35:18 AM by Borek
	how can i quantify my analytes without having standard	bobs	2	774	March 25, 2009, 08:51:45 AM by wpenrose
	Expired day	Kieu An	2	810	March 25, 2009, 08:48:19 AM by wpenrose
	Reagent for quantitative determination of polyphenols from tea	mehc	1	711	March 24, 2009, 06:55:48 AM by mehc
	Electrochem and Solubility Products	CopperSmurf	6	1142	March 22, 2009, 06:11:09 PM by CopperSmurf
	fluorescence	faith	2	661	March 22, 2009, 01:10:50 PM by ARGOS++
	Mass Balance: X2Y3	interminable	1	688	March 22, 2009, 09:02:00 AM by Borek
	Calculating pH with Quadratic:	arcanum	2	894	March 19, 2009, 03:42:31 PM by arcanum
	Carbon NMR phenylethanamide??	cheeselampost	10	1253	March 17, 2009, 09:51:54 PM by sjb
	crystallisation	McCoy	3	771	March 17, 2009, 05:02:58 AM by McCoy
	Secondary Standard	aillee	1	1497	March 13, 2009, 02:31:42 AM by ARGOS++
	Bisphenol-A	winkler92	3	1013	March 10, 2009, 10:17:07 PM by gericox
	Detecting new species	ronharold	1	601	March 10, 2009, 09:35:33 AM by frenchy
	Testing water for Citric Acid	bentalphanerd	4	1014	March 08, 2009, 12:42:36 PM by Borek
	Qualitative Analysis of Solutions.	I.B.D.	2	833	March 08, 2009, 06:22:54 AM by Himik_1982
	Electrochemistry: Relating Charge Passed to Analyte Quantity	nexisrocks	1	715	March 07, 2009, 10:48:12 PM by Borek
	Potentiometry: Determination of [Cl-]	nexisrocks	1	761	March 07, 2009, 10:43:41 PM by Borek
	suitable internal standards	rhyno-of-the-port	2	717	March 05, 2009, 10:06:48 PM by NP1957
	how to dissolve cephalosporin zinc salt	bobs	1	686	March 05, 2009, 12:18:18 PM by Borek
	Identification Of Compounds For QC Requirements	jmb6954	0	535	March 04, 2009, 08:43:35 AM by jmb6954
	How to determine molar solubility using activites	Chz	10	2613	March 03, 2009, 09:25:48 PM by Borek
	Converting to Buffer	Starc	10	1151	March 02, 2009, 09:54:26 PM by Starc
	Why is complexation of Aluminum by EDTA thermodynamically favorable?	spirochete	9	1269	March 02, 2009, 11:39:59 AM by spirochete
	Mass-Balance Expressions	gidget	1	1372	March 02, 2009, 07:41:19 AM by Borek
	vibrational freqencies of water vapor, carbon dioxide and polystyrene IR	faith	0	566	February 28, 2009, 07:04:28 PM by faith
	NMR	Doom91	2	899	February 28, 2009, 08:21:31 AM by o0CY0o
	Potassium to Sodium Ration: Molten Salt Technology	typhoon2028	3	838	February 28, 2009, 06:49:09 AM by gericox
	Why does NADH and NADPH have the same molar absorptivities?	pofulover	1	1180	February 28, 2009, 03:08:04 AM by Arkcon
	Phosphate content of lawn fertilizer by colorimetric analysis	gdogga	10	1555	February 27, 2009, 05:43:22 PM by el13
	What is the flow rate here ?	Bashir2008	2	854	February 27, 2009, 10:34:11 AM by Borek
	analysis of glycerides	gericox	0	589	February 26, 2009, 01:52:29 AM by gericox
	Sodium lauryl sulfate- Shampoo	winkler92	1	803	February 25, 2009, 02:00:39 AM by gericox
	Sheet Molding Compound..Thermal Conductivity!!!	arty2009	0	539	February 23, 2009, 02:26:27 AM by arty2009
	Ideal volume of titrant relative to burette size	spirochete	4	1112	February 22, 2009, 01:04:02 PM by spirochete
	Sources of random error in acid base titration	spirochete	1	2340	February 22, 2009, 11:08:39 AM by Borek
	A question on reducing agent in phosphorus content determination	clevermartin	1	1017	February 18, 2009, 01:47:33 PM by el13
	low Total N and Total P values	Dwade	1	708	February 18, 2009, 01:37:16 PM by el13
	Problem with the HPLC	aussie75	2	778	February 18, 2009, 06:47:12 AM by JGK
	Titration	leanniffer	2	727	February 16, 2009, 09:30:13 PM by Borek
	Explanation on the pH	bookworm	7	1151	February 16, 2009, 08:31:07 AM by Borek
	Theory on pH	bookworm	4	1033	February 16, 2009, 03:06:21 AM by bookworm
	Buffers	bookworm	7	1023	February 15, 2009, 01:30:08 AM by Borek
	HNO3 production process	pramu	3	1206	February 11, 2009, 06:10:18 AM by AWK
	Optimisation of conditions for the extraction of Iron-by-Iron chloride	GP	0	582	February 11, 2009, 03:59:25 AM by GP
	Problem with ppm	CopperSmurf	3	1121	February 10, 2009, 10:55:09 AM by sjb
	salt ionization	webguy54	0	589	February 10, 2009, 10:11:19 AM by webguy54
	antibiotic international units to milligram conversion	fermentek	2	977	February 10, 2009, 08:53:20 AM by JGK
	modified Kjeldahl	el13	7	1091	February 09, 2009, 11:43:45 PM by Mr Peanut
	bond lenght and angle	faith	0	619	February 08, 2009, 06:59:59 PM by faith
	Preparing 200ppm Sodium Hypochlorite Solution	lingo_belle	2	1440	February 08, 2009, 09:51:11 AM by Fleaker
	Determination of Mg by EDTA Titration	asyali	0	766	February 08, 2009, 01:23:04 AM by asyali
	Mass balance equation, and problem doing first step.	Chiram	3	2535	February 07, 2009, 01:06:23 PM by ARGOS++
	Solubility problem.	Chiram	4	1034	February 07, 2009, 06:47:16 AM by Chiram
	analysis of sulphur dioxide	bssharat	0	744	February 03, 2009, 03:12:05 AM by bssharat
	HPLC - determining a multi-component solution	food	4	1181	February 03, 2009, 02:59:35 AM by Arkcon
	Hydrolysis of Salts	bookworm	2	1144	February 02, 2009, 09:33:12 PM by NP1957
	Calculation of pH	bookworm	1	737	February 02, 2009, 03:38:41 AM by Borek
	area under the curve	faith	4	2128	February 02, 2009, 12:32:22 AM by Arkcon
	Analysis problem	aldoxime_amine	4	851	February 01, 2009, 08:32:19 AM by aldoxime_amine
	Titration problem.	aldoxime_amine	4	899	February 01, 2009, 08:30:52 AM by aldoxime_amine
	Acid-base chemistry	aldoxime_amine	2	669	February 01, 2009, 08:25:14 AM by aldoxime_amine
	advantages of colorimetric method over titration	cmquer	2	1645	January 31, 2009, 04:25:19 PM by food
	carbonate buffer solution equilibrated with CO2/02: how to calculate HC03-/pH?	Maramaldo	3	2046	January 30, 2009, 02:51:09 AM by Maramaldo
	assigning of peaks for H NMR for delta-valerolactone	~~PrEciOuS~~	4	1108	January 26, 2009, 04:13:42 AM by geodome
	Error calculation going wrong (1 order of magnitude every time)	nj_bartel	2	956	January 25, 2009, 01:24:16 PM by nj_bartel
	Would this weight ratio work?	Questionguy	12	1456	January 24, 2009, 04:08:31 PM by Questionguy
	Triethylamine and Hydrochloric acid interaction question	jenrager	2	1617	January 22, 2009, 06:40:01 AM by CopperSmurf
	Is this pH possible?	Joniaguis	1	910	January 15, 2009, 10:58:16 AM by Joniaguis
	Discuss this statement and give reasons and examples.	Joniaguis	5	1460	January 04, 2009, 10:53:52 PM by NP1957
	NaOH (s) in Al2(SO4)3 (aq)	THC	4	2109	January 04, 2009, 07:35:38 PM by AWK
	Analysis of an aluminum-zinc alloy using HCl	buckminsterfullerene	3	3076	January 04, 2009, 08:22:06 AM by ajrobb9109
	Internal vs. External Ionization	Telamond	2	798	January 02, 2009, 05:31:45 AM by Telamond
	Calculate [Fe2+] in NaCN solution	THC	8	1404	January 01, 2009, 02:29:39 AM by THC
	H2S	jp.101	2	865	December 30, 2008, 01:59:25 AM by AWK
	As and Se: same problem, new question	2lrigbal	5	1235	December 22, 2008, 01:30:12 PM by enahs
	electrophoresis	kitten	1	781	December 21, 2008, 12:39:40 PM by Mansouri
	Analysis of aspirin in tablet with impurities	cmquer	2	1553	December 14, 2008, 05:34:07 PM by enahs
	HPLC	faith	6	1238	December 14, 2008, 06:09:49 AM by JGK
	Help with solving mass spectrum.	Telamond	2	888	December 13, 2008, 09:43:38 AM by Telamond
	Solubility and Activity Coefficients	Thresh	4	1203	December 11, 2008, 09:38:45 PM by Borek
	Titration help	ktrone	4	1083	December 10, 2008, 01:51:15 PM by semper erectus
	Please! Help me	phyoyan	3	810	December 09, 2008, 09:39:28 AM by sjb
	Find % of a weak acid and i got half of it right, but other half wrong. Help plz	Noname16	8	989	December 07, 2008, 01:29:54 PM by Noname16
	alkalinity expressed as ammonia calculation	neildeal22	0	712	December 06, 2008, 02:42:45 PM by neildeal22
	Relative Standard Deviation	mir	1	3426	December 06, 2008, 04:02:46 AM by ARGOS++
	Propagation of error question	Joniaguis	0	568	December 06, 2008, 12:46:40 AM by Joniaguis
	Isolate benzoic acid, p-methylphenol and naphthalene (C10H8).	McCoy	5	1887	December 04, 2008, 06:53:53 PM by macman104
	complex ions equilibrium constants	Liz	13	1739	December 04, 2008, 10:09:44 AM by Borek
	pH after titrating and finding an unknown amount of HgO	blightcutter	3	1114	December 02, 2008, 12:09:46 PM by blightcutter
	Masking Zn when determine NaOH/Na2CO3. How?	Himik_1982	3	1151	December 02, 2008, 03:25:05 AM by Himik_1982
	pH Calculation of polyprotic acid	NP1957	12	2402	November 30, 2008, 11:12:50 PM by NP1957
	Kjeldahl method of determining sulfur and carbon...	pharm.M.H	2	867	November 30, 2008, 07:12:40 PM by AWK
	back titration	Liz	3	1932	November 30, 2008, 06:00:48 PM by NP1957
	Looking for a method	chrisbb	6	864	November 30, 2008, 09:28:45 AM by wpenrose
	combustion catalysts	kateman	9	1142	November 29, 2008, 02:17:36 PM by kateman
	Calculation of pH for biochemical mixtures	serbianguy	6	1585	November 28, 2008, 07:55:02 AM by Borek
	Boltzmann distribution	lily_m	0	560	November 28, 2008, 03:55:16 AM by lily_m
	Atomic emission spectroscopy	lily_m	2	804	November 28, 2008, 03:50:26 AM by lily_m
	Dimerization of benzoic acid	Julie Smith	0	608	November 26, 2008, 08:56:31 AM by Julie Smith
	balancing equations for precipitates	WHITECHIC9	3	841	November 25, 2008, 02:16:37 AM by AWK
	Titration	iffy345	1	677	November 23, 2008, 09:11:10 PM by Borek
	Seperation of anino acids by Paper Chromatography	xelizaxlix	1	765	November 23, 2008, 09:02:25 PM by Borek
	Potential of platinum electrode dipped into equilibrated solution	jkulier	5	1190	November 20, 2008, 10:47:12 PM by Borek
	Raman Spectrum, please!	kitten	0	475	November 20, 2008, 01:43:52 PM by kitten
	Iodometric titration of bleaching solution	bellatrix	1	1112	November 20, 2008, 07:36:33 AM by Mr Peanut
	Spectrophotometry calculation	yg7s7	4	973	November 19, 2008, 08:34:42 AM by ARGOS++
	6N HCl	atuljoshi	2	1429	November 17, 2008, 07:40:25 AM by Borek
	physician need help in some practical chemistry.	evidenso	2	797	November 17, 2008, 01:42:07 AM by ndhoot
	Analysis of benzoin	ndhoot	0	499	November 16, 2008, 08:53:59 PM by ndhoot
	Performance checking of HPLC	freeze0912	7	1177	November 16, 2008, 12:13:00 PM by enahs
	Uncertainty - how to calculate?	tou	3	6015	November 16, 2008, 04:10:59 AM by enahs
	Crystallization of Caustic solution	stevenjporteous	3	923	November 16, 2008, 03:03:32 AM by jansenwrasse
	Expiration Dates	jwinters	2	770	November 15, 2008, 03:08:25 AM by Arkcon
	TISAB vs ISA	contour_pl	0	693	November 13, 2008, 07:04:49 PM by contour_pl
	dilution factors & beer's law	diamorph	5	1596	November 13, 2008, 09:32:31 AM by Borek
	relationship between N & D	kitten	1	623	November 12, 2008, 02:31:54 PM by JGK
	delete me! Can Sum1 learn me quatum mekanix?	doranedward	3	807	November 11, 2008, 06:20:30 PM by Mitch
	calculating total reaction time	finknottle	0	563	November 11, 2008, 03:09:07 AM by finknottle
	help with homework (pathetic..)	diamorph	3	820	November 09, 2008, 09:27:49 PM by Borek
	solubility	WHITECHIC9	10	1017	November 08, 2008, 03:08:46 PM by WHITECHIC9
	Error in neutralisation titration	Hazel	2	1464	November 07, 2008, 08:37:26 PM by Hazel
	Preparing 1, 3, 5 and 10 ppm standards from 100 ppm standard	jkulier	6	1894	November 07, 2008, 06:22:24 AM by wpenrose
	Two internal standards - Why?	Telamond	3	880	November 06, 2008, 09:18:17 AM by Telamond
	Clogged pipes and heat coils	Jaws	1	654	November 03, 2008, 02:55:01 PM by enahs
	problems with old H-NMR spectromer	Aslakium	3	917	November 03, 2008, 05:44:35 AM by JGK
	Titration Involving Strong Monoprotic & Weak Polyprotic Acids	contour_pl	3	1195	November 02, 2008, 09:40:12 PM by Borek
	Nicotine Content	ehFk	7	1048	November 02, 2008, 09:47:04 AM by Borek
	IEX-Chromatographie for Peptide map	diablo	0	502	November 02, 2008, 01:14:56 AM by diablo
	infrared spectroscopy	ashirvad	2	751	November 01, 2008, 12:30:04 AM by Mr Peanut
	neutralizing weak acids	Julie Smith	3	709	October 30, 2008, 10:58:01 PM by AWK
	Simple buffer problem	yg7s7	1	779	October 29, 2008, 08:49:11 PM by AWK
	Quality assurance and GC	mir	1	811	October 27, 2008, 02:18:07 AM by JGK
	pH of Multiple Species of Phosphate in Solution	AutoGyro	6	1194	October 26, 2008, 10:24:45 PM by Borek
	solubility of barium sulfate	banjhankri	1	1035	October 24, 2008, 11:49:27 AM by Borek
	solvent extraction	snowie1010	3	831	October 24, 2008, 04:01:44 AM by JGK
	Manual for Micromeritics Pulse Chemisorb 2700	ozr	3	888	October 23, 2008, 06:37:04 PM by ozr
	pleaze help me	MASTER	3	730	October 23, 2008, 02:17:54 AM by MASTER
	Polyprotic buffer problem- Can someoen please explain?	yg7s7	6	1778	October 22, 2008, 07:34:30 PM by AWK
	Sulfite measurements HPLC	brakke007	2	761	October 22, 2008, 07:51:44 AM by brakke007
	H NMR	kitten	3	934	October 22, 2008, 06:46:02 AM by Mitch
	H NMR	andia	1	797	October 20, 2008, 08:30:16 AM by Mitch
	Calculating pH (Neutralizing Titrations Chapter)	britbro19	1	1073	October 19, 2008, 04:53:12 PM by enahs
	Fluorescent quinine	cmquer	1	957	October 17, 2008, 04:12:27 PM by Mitch
	ultraviolet region	lily_m	4	1067	October 16, 2008, 10:59:40 AM by lily_m
	Weight Percent	ehFk	5	1877	October 16, 2008, 08:00:45 AM by ehFk
	NMR interpretations	ngray	5	1131	October 15, 2008, 09:00:12 AM by macman104
	Titration Problem	sergii	9	1359	October 14, 2008, 03:54:22 AM by lann
	Need HELP with Mn in Steel with Standard Addition lab	Reeko17	3	3747	October 13, 2008, 02:20:30 PM by TomOHaver
	Thermogravimetric Analysis on Calcium Salicylate	tiny101	1	824	October 13, 2008, 10:24:50 AM by Mansouri
	Fusion of barium sulfate	analyst	1	807	October 13, 2008, 10:07:04 AM by Mansouri
	Creating a Phosphate buffer !	sainte	4	1796	October 13, 2008, 09:33:00 AM by Borek
	reaction between (S2O3)2- and (I3)- : redox or not	ziyaad89	2	1645	October 13, 2008, 07:46:19 AM by wpenrose
	CALCITE AND aRAGONITE activity problem	sainte	1	675	October 13, 2008, 03:37:35 AM by sainte
	Separating a mixture of I- and Cl- for gravimetric analysis possible?	mirror05	10	1457	October 09, 2008, 09:12:26 PM by wpenrose
	Buying of a Mass-spectrometer	lingo_belle	2	859	October 09, 2008, 02:58:46 AM by JGK
	covertion	missaturn	1	725	October 08, 2008, 07:31:41 PM by macman104
	EDTA and Hardness of Water Question	boku	7	1616	October 06, 2008, 09:18:52 PM by Borek
	Sampling from gas bags	mir	7	1379	October 06, 2008, 10:42:50 AM by wpenrose
	Oxidation-reduction problem	Julie Smith	10	1209	October 02, 2008, 10:26:30 PM by Borek
	Binary mixture - percent composition	tiny101	3	955	October 02, 2008, 10:18:19 PM by Borek
	What is the conditions of xanthones analysis using GC-MS???	randoft	7	1118	October 02, 2008, 02:25:26 AM by JGK
	removing ethanol from a sample	woooah	2	1536	October 01, 2008, 04:33:21 PM by enahs
	Analysis of Nickel (II) Complex	jkulier	3	989	October 01, 2008, 12:39:21 PM by Borek
	Analytical Determination of Chemical Formula	mirror05	0	542	October 01, 2008, 11:18:08 AM by mirror05
	Analytical/kinetics question involving autolysis of water	sdp	1	802	September 26, 2008, 10:01:24 PM by Borek
	Production of a solution with [Cl-] = 0.02 M	jkulier	3	778	September 25, 2008, 09:13:46 PM by Borek
	preparation of Co(en)3Cl3	McCoy	3	883	September 25, 2008, 10:11:25 AM by Borek
	Conductivity of HCl,LiCl,NaCl and KCl	McCoy	2	1438	September 25, 2008, 09:37:51 AM by McCoy
	analysis for kaolin and pectin	diniarti	1	650	September 25, 2008, 09:08:12 AM by JGK
	about ionization	missaturn	0	407	September 24, 2008, 06:33:25 PM by missaturn
	paper of analytical chemistry	soliman	1	593	September 23, 2008, 07:49:32 AM by Borek
	analytical chemistry	seun ishola	1	636	September 23, 2008, 02:14:25 AM by JGK
	Homework problems that completely stump me	britbro19	27	1412	September 22, 2008, 06:02:16 AM by Borek
	BALANCED NET IONIC EQN	ekonopka	1	587	September 21, 2008, 09:29:28 PM by Borek
	Why does adding acid in a Gravimetric Analysis of Fe2O3 matter?	JEA	1	692	September 21, 2008, 09:42:03 AM by Borek
	KMnO4 for mercury digestion	mercury	3	1800	September 19, 2008, 08:45:47 PM by kevins
	Calculating total ionic strength?	Doubleoblivious	3	2077	September 19, 2008, 01:01:00 AM by Doubleoblivious
	mg/kg dilute solution help, from paper to flask	erlenmeyerllc	2	882	September 17, 2008, 09:09:18 PM by Borek
	Mass spectrometers prices, important parameters?	diablo	2	1759	September 15, 2008, 10:11:02 PM by diablo
	Fragmentation in mass spectroscopy	akwalker	1	1635	September 14, 2008, 09:32:40 AM by enahs
	Hydrochloric acid with iron (II) sulphide	buffy121	3	1031	September 13, 2008, 11:33:37 PM by Borek
	Conway experiment (principle and basically anything about it)	christina	0	823	September 12, 2008, 01:23:30 PM by christina
	Peroxide test methods	Ist	4	1889	September 10, 2008, 10:20:12 PM by Ist
	Order of stability of the lower miller index planes	ngray	1	785	September 10, 2008, 06:55:22 PM by AWK
	Optical methods, Surface Chemistry	ngray	3	955	September 09, 2008, 04:28:44 PM by Yggdrasil
	Stoichiometry calculation including 3.00M H2SO4 and 23.2 wt% Ba(NO3)2	tiny101	3	1235	September 08, 2008, 06:47:25 PM by AWK
	fluorescence	vera	4	1422	September 07, 2008, 10:33:59 PM by vera
	Activity co-efficients	ahmed17	2	730	September 07, 2008, 07:39:42 PM by AWK
	electric potentials... confused	HgWonder	3	891	September 07, 2008, 11:37:07 AM by Borek
	nitrate analysis - unexplained negative peaks	Dwade	2	1406	September 05, 2008, 05:30:03 AM by Borek
	Micro pumps for analytical chemistry	Peaches	2	727	September 04, 2008, 09:30:49 PM by Peaches
	Determination of colloidal silica	mahesh	2	803	September 02, 2008, 02:11:00 AM by mahesh
	Saftey concern of potassium chromate	fish79	1	735	September 01, 2008, 11:52:39 PM by Borek
	Carbohydrates on HPLC !	Jamemeup2152c	4	1372	September 01, 2008, 09:34:31 PM by mahesh
	Combustion analysis	darknietzsche	4	1201	September 01, 2008, 08:41:12 AM by darknietzsche
	gravimetric analysis	darknietzsche	1	677	September 01, 2008, 08:30:28 AM by Borek
	analytical chemistry	pragathi	1	754	August 31, 2008, 09:35:40 PM by Borek
	Iodometric analysis of NH2 in Aniline sample	niku2803	1	925	August 25, 2008, 06:39:19 AM by Borek
	Ammonium Acetate Buffer	Jamemeup2152c	4	4234	August 22, 2008, 06:34:42 AM by Jamemeup2152c
	Carbon NMR DEPT problem	green-goblin	4	1677	August 18, 2008, 02:25:50 AM by macman104
	High RSD between injection for HPLC system	bluemoon	5	2176	August 14, 2008, 07:11:36 AM by sassman
	Supported Liquid Extraction???	BioDude17	2	970	August 14, 2008, 07:02:06 AM by sassman
	MOLAR SUBSTITUTION of HEC	catherine	0	1082	August 12, 2008, 06:32:55 PM by catherine
	GC! help me	ina	6	2934	August 12, 2008, 08:46:16 AM by wipeout
	analytical chemistry	pragathi	7	3296	August 08, 2008, 12:12:57 PM by enahs
	Reversed Phase Chromatography difficulty	lamaksha	2	1263	August 07, 2008, 05:08:46 PM by enahs
	Titration using Kr2Cr2O7 titrant and SRM	pyrogallol	13	4065	August 06, 2008, 09:58:48 PM by Borek
	Molarity	neil.smif	1	1186	July 31, 2008, 01:17:26 AM by Borek
	analysis of free acid in diethyl oxalate	marutikmv	1	846	July 25, 2008, 04:39:54 AM by Borek
	Titrating Iodate Content of Iodised Salt - Help Please!	benji-t	12	2017	July 21, 2008, 02:32:52 AM by AWK
	Equlilibrium Constant - pH dependency	ccccc	9	3211	July 18, 2008, 02:13:24 AM by ccccc
	GC electrode corrosion	gdlchmst	1	795	July 17, 2008, 12:40:39 PM by Mark Imisides
	Sulfur Dioxide Stinks	lablackey	3	1111	July 17, 2008, 04:45:21 AM by Borek
	unsaturation of oils - halogen titration	firebonez	0	921	July 16, 2008, 03:10:47 AM by firebonez
	Looking for books recommendations on classical qualitative chemical analysis.	imcat	1	868	July 10, 2008, 05:42:41 AM by JGK
	amount of iron in steel	ares	2	1376	July 09, 2008, 12:56:53 PM by ares
	Addition method for GC	catherine	1	1016	July 09, 2008, 09:44:19 AM by JGK
	Water and GC	catherine	0	604	July 09, 2008, 04:27:14 AM by catherine
	Suggested methods for identifying compounds in variably complex solid mixtures?	BlueTheCow	1	750	July 08, 2008, 06:17:38 PM by nj_bartel
	ORP	pjothimu	1	2147	July 05, 2008, 08:01:36 AM by Borek
	Methyl salicylate assay	shahirahzulfah	1	1156	July 04, 2008, 09:46:58 PM by Borek
	polargraphy	anup deb	1	1232	July 04, 2008, 02:26:33 AM by JGK
	Electrochemistry Question	ss4vegeta1	2	1400	July 03, 2008, 09:11:19 PM by Rabn
	GC, quantification of unidentified compounds	yas	5	2773	July 03, 2008, 07:33:23 AM by Rivet