title: [Gas chromatographic determination of micro organic impurities in 3-chloro-2-hydroxypropyl trimethyl ammonium chloride].
abstract: A simple, rapid and reliable method for the determination of micro organic impurities, epichlorohydrin and 1,3-dichloropropanol, in 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (CHPTMA) by gas chromatography is reported. 2-Ethylhexanol was the internal standard. Epichlorohydrin and 1,3-dichloropropanol in CHPTMA were extracted by chloroform. The gas chromatographic separation was achieved on a stainless steel column packed with 10% PEG 20M/Chromosorb W/AW and with a flame ionization detector. The ranges of recovery were 97.5%-105.0% and 93.3%-98.8%, the RSDs were 11.5% and 13.1% and the mininum detectable concentrations were 5.0 micrograms/g and 10 micrograms/g for epichlorohydrin and 1,3-dichloropropanol respectively.
authors.affiliation: Research Institute of Qilu Petrochemical Corp., Sinopec Corp., Zibo 255400, China. lfufang@sina.com
authors.forename: Fu-fang
authors.initials: FF
authors.lastname: Liu
authors.forename: Jie
authors.initials: J
authors.lastname: Sun
authors.forename: Hui-lian
authors.initials: HL
authors.lastname: Sun