Pharmaceutical excipients, such as polyethylene glycol-based polymers, must be tested for the presence of ethylene oxide (EtO) and 1,4-dioxane as part of a safety assessment, according to USP Chapter <228>.
Investigating Synthetic Cathinone Positional Isomers using LC–EAD-MS
November 7th 2024Peng Che fom Vrije Universiteit Amsterdam in the Netherlands discusses the benefits of hyphenating liquid chromatography (LC) with electron activated dissociation mass spectrometry (EAD-MS) to analyze cathinone positional isomers.