title: [Analysis of the pollutant in purified diethyl malonate by on-line LG-GC/FTIR method].
abstract: In some cases, the use of conventional GC/FTIR technique is limited due to its lower detectability to micro-components in organic mixtues in comparison to GC/MS. In this paper, an integration of LG/GC using retention gap technique with partially concurrent solvent evaporation, as a efficient chromatographic system for sample preconcentration and preseparation, was coupled into FTIR system in order to overcome the detectability problems of GC/FTIR analysis. The applicability of the on-line LG-GC/FTIR method is demonstrated by analysis of the isomers of divinylbenzene in purified diethyl malonate under conditions of hexane/dichloromethane (85:15) used as mobile phase in LC, solvent evaporation temperature of 75 degrees C and inlet pressure of 0.20MPa etc.
authors.affiliation: Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116012 Dalian.
authors.forename: W
authors.initials: W
authors.lastname: Huang
authors.forename: J
authors.initials: J
authors.lastname: Chen