We have observed some unknown impurities while performing residual solvent analysis by HSGC method.Is there any guideline directions of identification of unknowns arising during res.solvent analysis or your approach/experiances in this regard in drug substances is highly appreciated.
By Anonymous on Monday, February 23, 2004 - 05:48 am:
You are welcome to contact me for discussion.
Senior Research and Development Scientist
Gas Separations Research
595 North Harrison Road
Bellefonte, PA 16823