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- Posts: 1
- Joined: Thu May 02, 2019 9:39 pm
My first time posting. I bought a large sample of D+galactose powder rather cheaply in bulk, but it has some colorants, and possibly other contaminants. They cause a broad and quite significant fluorescence background with near-infrared Raman spectroscopy. Does anyone have a suggestion on how to quickly remove the impurities without too much expense?
Since I have a large sample and do not mind losing a bit of it, I am thinking of supersaturating the galactose in water and then removing the supernatant hoping that it would dissolve and carry out most of the contamination. I could do this a few times with distilled water, and then a final boil to remove all the water.
I am appreciative of any suggestions. BTW, we are not a chemistry facility, but a bunch of engineers. Thanks!
EDIT: Typo corrections.