extracted caffeine by using chloroform and magnesium sulfate to dehydrate the organic phase. I got crude caffeine just by solvent evaporation at room temperature. However, I wanted to conduct Raman spectroscopy measurements but I did not get the characteristic peaks. I think that it has to be whit chloroform presence due to its fluorescence. So I let the crude caffeine 24h drying at 65 degrees but still I did not get any peak. What can I use to rinse my crude caffeine extract to remove all chloroform molecules? Or what is wrong with my extraction
extracted caffeine by using chloroform and magnesium sulfate to dehydrate the organic phase. I got crude caffeine just by solvent evaporation at room temperature. However, I wanted to conduct Raman spectroscopy measurements but I did not get the characteristic peaks. I think that it has to be whit chloroform presence due to its fluorescence. So I let the crude caffeine 24h drying at 65 degrees but still I did not get any peak. What can I use to rinse my crude caffeine extract to remove all chloroform molecules? Or what is wrong with my extraction
Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter1: Introduction
Section: Chapter Questions
Problem 1.11QAP
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I extracted caffeine by using chloroform and magnesium sulfate to dehydrate the organic phase. I got crude caffeine just by solvent evaporation at room temperature. However, I wanted to conduct Raman spectroscopy measurements but I did not get the characteristic peaks. I think that it has to be whit chloroform presence due to its fluorescence. So I let the crude caffeine 24h drying at 65 degrees but still I did not get any peak. What can I use to rinse my crude caffeine extract to remove all chloroform molecules? Or what is wrong with my extraction?
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