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Topic: Titration VS UV/vis spectroscopy  (Read 14588 times)

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Offline ceres

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Titration VS UV/vis spectroscopy
« on: May 09, 2009, 04:26:41 AM »
Hi everyone! I was wondering if someone can help me out with a simple discussion question.

I was asked to discuss the titration and UV/vis spectroscopy methods used in my preveios experiment on which is a better or more accurate method in determining the unknown concentration of a sample.

I'm not very good with analytical chemistry, so i hope someone can provide some hints on what i can write for this?

Offline ARGOS++

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Re: Titration VS UV/vis spectroscopy
« Reply #1 on: May 09, 2009, 07:55:51 AM »

Dear ceres;

The answer is not as simple as your question may imply.

Additionally you have to distinguish between  single-wavelength-spectrometry (SWS) and multiple-wavelength-spectrometry (MWS).

So we can give you only some hints:
SWS is quite comparable to titration (T) except that endpoint detection in T is very unspecific and depends on the eye. SWS has a higher specificity because the selectable wavelength.
And so on.

Titration knows no comparable mode to the very powerful MWS.
A common method of MWS is the so called “Multi Component Analysis” (MCA/MKA):

Hope to have anyway been of some help to you.
Good Luck!
                    ARGOS++

Offline Arkcon

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Re: Titration VS UV/vis spectroscopy
« Reply #2 on: May 09, 2009, 08:09:29 AM »
A simpler question for you ceres;,  which of the two methods you performed gave results closer to the true value?  Which had more precision?  Those are not synonyms, but point to different aspects, of the generalized term "better".  Was one method more -- "accident-prone" or more fiddly with human manipulations? I'm avoiding technical terms here, to force you to write them for yourself.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline ceres

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Re: Titration VS UV/vis spectroscopy
« Reply #3 on: May 09, 2009, 09:11:21 AM »
Thank you, Argos, Arkcon, for the hints! I'm getting some ideas on what to elaborate on now!

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