Re: [Ifeffit] Fluorescence sample thickness

Hi Rachel, Do you have a good idea of the approximate mass percent of the elements you’re probing. A little more information, (edge, suspected surrounding environment) would probably get you a much better answer. When you say ‘control the concentration’ do you mean you can dictate how much sample you put in the capillary tube or how much of the absorption element? Otherwise, really the only answer is, “it depends.” hope that helps, Chris ********************************************** Dr Christopher Patridge Associate Professor Dept of Chemistry SASE 315 716-829-8096 | patridgc@dyc.edu www.dyc.edu http://www.dyc.edu/ Social: Twitter http://www.twitter.com/drpatridgc

On Oct 1, 2019, at 1:10 PM, Wallick, Rachel wrote:

I’m preparing for an XAS measurement in fluorescence of a solution-phase sample that will be measured in a capillary tube. I anticipate being able to control the concentration fairly easily, and I’m trying to figure out what the best capillary diameter would be. Is there a good way to figure this out?

Rachel Wallick Chemistry Graduate Student Van der Veen Group University of Illinois at Urbana-Champaign 3011 Materials Research Laboratory

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