“…MIMS was used to determine ammonia, ethanol, and acetic acid in aqueous solution, and derivatization with hexyl chloroformate was used to determine ethylene glycol in aqueous matrices, with a 0.1 mg/L detection limit in tap water . A GC/MS method, using derivatization with PFBBr on a polymeric phase-transfer catalyst, was developed for measuring dialkyl phosphates in aqueous samples …”