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Why do we use caffeine as an internal standard?

Started by Moz29386 | Last post by Moz29386 October 21, 2011, 02:14:42 PM

0 Replies
2194 Views
Last post October 21, 2011, 02:14:42 PM
by Moz29386
Why does adding acid in a Gravimetric Analysis of Fe2O3 matter?

Started by JEA | Last post by Borek September 21, 2008, 03:42:03 PM

1 Replies
3838 Views
Last post September 21, 2008, 03:42:03 PM
by Borek
Why does current change direction in cyclic voltammetry?

Started by LogicX | Last post by Borek October 11, 2012, 04:19:44 AM

2 Replies
2500 Views
Last post October 11, 2012, 04:19:44 AM
by Borek
Why does EDTA not complex with single charge cations?

Started by Strike | Last post by Strike March 19, 2012, 05:09:45 PM

2 Replies
2407 Views
Last post March 19, 2012, 05:09:45 PM
by Strike
2 Replies
1341 Views
Last post April 10, 2017, 11:33:41 AM
by Babcock_Hall
Why does NADH and NADPH have the same molar absorptivities?

Started by pofulover | Last post by Arkcon February 28, 2009, 09:08:04 AM

1 Replies
7416 Views
Last post February 28, 2009, 09:08:04 AM
by Arkcon
Why does pH affect separation of amino acids by electrophoresis?

Started by prince umair | Last post by rjb November 23, 2010, 04:18:48 AM

2 Replies
8915 Views
Last post November 23, 2010, 04:18:48 AM
by rjb
1 Replies
1662 Views
Last post May 15, 2017, 08:04:22 AM
by Borek
Why Hgs doesn't dissolve...

Started by spiderman1441 | Last post by AWK January 17, 2007, 09:07:07 AM

1 Replies
2787 Views
Last post January 17, 2007, 09:07:07 AM
by AWK
9 Replies
11704 Views
Last post March 02, 2009, 05:39:59 PM
by spirochete
Why is the effective carbon number for acetylene 2.6 and not 2?

Started by confusedstud | Last post by confusedstud February 11, 2020, 06:16:55 AM

0 Replies
147 Views
Last post February 11, 2020, 06:16:55 AM
by confusedstud
Why is the ppm of stock solution different from ICP result?

Started by Jcubed | Last post by 8bambi4 September 14, 2012, 09:10:48 AM

12 Replies
6591 Views
Last post September 14, 2012, 09:10:48 AM
by 8bambi4
Why it is Cl (not Cl2) ?

Started by akrnfl | Last post by billnotgatez November 12, 2006, 11:33:33 AM

3 Replies
5762 Views
Last post November 12, 2006, 11:33:33 AM
by billnotgatez
Why lambda max is used instead of full spectrum?

Started by agent1594 | Last post by Corribus May 20, 2016, 09:44:59 PM

8 Replies
10380 Views
Last post May 20, 2016, 09:44:59 PM
by Corribus
Why oxygenious rests can't escape from solution?

Started by oneat | Last post by oneat April 18, 2010, 02:27:43 PM

0 Replies
1865 Views
Last post April 18, 2010, 02:27:43 PM
by oneat
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