Glycerol impurity

[MK]

Just scanned a glycerol >99,8% sample on a spectrophotometer. There is a sharp peak with an lambda max of 276nm. Anybody have an idea what this could be? Glycerol shouldn't have UV absorbance?

[Consumer Products Guy]

I dissolved my glycerin sample in alcohol and my sample had no peak in that UV region. My company also manufactures USP glycerin.

[MK]

Thank you Consumer Products Guy.

I dissolved in water. Glycerol is a stabilizer in our drug product and the impurity interferes with QC analysis.

Can I contact you privately? My email is:

mkarjala76(at)suomi24.fi

Thanks