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Chemistry Forums for Students => Analytical Chemistry Forum => Topic started by: FancySnow on December 05, 2018, 03:57:49 AM

Title: Selectivity elemental analysis techniques. PLEASE *delete me*
Post by: FancySnow on December 05, 2018, 03:57:49 AM
Hello Chemistry experts, I really need your help.

I'm trying to put together a study guide on the techniques in atomic spectroscopy. I got a lot done, but I'm a little confused about how to rank their selectivity?

For example, among FAAS, GFAAS, ICP-AES, and ICP-MS, how would you rank their selectivity?

Typically for FAAS and GFAAS they are selective because of the light source used, right? Hollow Cathode Lamp provide very specific element-of-interest spectral lines. Yes? But, they do have to deal with spectral and chemical interferences. OK.

ICP-AES and ICP-MS are multi-element analytical techniques, so then, they are nonselective by default? Is that how I need to look at it?


Please help me understand selectivity potential among these techniques.
Title: Re: Selectivity elemental analysis techniques. PLEASE *delete me*
Post by: Corribus on December 05, 2018, 08:42:26 AM
What is your definition of selectivity?