On Apr 21, 2023, at 9:52 PM, Joel Brugger <joel.brugger@monash.edu> wrote:
Fluo, 0.5 wt% Cu.On 22 Apr 2023, at 11:41 am, Anatoly Frenkel <anatoly.frenkel@stonybrook.edu> wrote:Fluorescence or transmission?_______________________________________________What is the Cu concentration? Could be self absorption.AnatolyOn Apr 21, 2023, at 9:31 PM, Joel Brugger <joel.brugger@monash.edu> wrote:Dear list,_______________________________________________We are trying to fit EXAFS from data collected on solutions within a capillary. The capillary has OD 1mm, ID 0.8mm, and was placed horizontally. The beam is 1x2 mm (VxH).Fitting the copper reference foil, we get the expected SO2 value of ~0.7.However, the solution containing the Cu(II) aqua ion gives a coordination of 2, instead of the expected 5-6. So our SO2 for this solution is apparently ~0.25.I couldn’t find a discussion of the effect of geometry (in our case cylindrical rather than planar) on SO2. Is it possible that the low SO2 is a result of the odd geometry?Confused as ever,JOELJoël Brugger
Professor of Synchrotron Geosciences
Monash University
School of Earth, Atmosphere and Environment
Room 257A, Level 2, 9 Rainforest Walk
Clayton, Victoria 3800
Australia
T: +61 3 9905 4898
E: Joel.Brugger@monash.edu
Twitter: @JoelBrugger
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