A universal temperature controlled membrane interface for the analysis of volatile and semi-volatile organic compounds

被引:16
作者
Creaser, CS
Lamarca, DG
dos Santos, LMF
New, AP
James, PA
机构
[1] Nottingham Trent Univ, Sch Sci, Nottingham NG11 8NS, England
[2] GlaxoSmithKline, Strateg Technol, Stevenage SG1 2NY, Herts, England
[3] Cambridge Sci Instruments, Ely CB6 2HY, Cambs, England
关键词
D O I
10.1039/b305085h
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A universal temperature controlled membrane interface (TCMI) has been constructed for hollow-fibre membranes. The membrane temperature is controllable in the range -70 to 250 degreesC using an electric heater and a flow of cooled nitrogen or helium gas. Volatile and semi-volatile organic compounds may be detected either by continuous diffusion across the membrane or by in-membrane pre-concentration followed by thermal desorption into the detector. The TCMI interface is demonstrated in combination with mass spectrometry and GC-MS, for the determination of VOCs and SVOCs in aqueous and air samples and for the on-line monitoring of a bioreactor.
引用
收藏
页码:1150 / 1156
页数:7
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