Semi-rotating cryogenic modulator for comprehensive two-dimensional gas chromatography

被引:18
|
作者
Kallio, M [1 ]
Hyötyläinen, T [1 ]
Jussila, M [1 ]
Hartonen, K [1 ]
Palonen, S [1 ]
Shimmo, M [1 ]
Riekkola, ML [1 ]
机构
[1] Univ Helsinki, Dept Chem, Analyt Chem Lab, FIN-00014 Helsinki, Finland
关键词
comprehensive two-dimensional gas chromatography; GCxGC; modulator; aerosol analysis;
D O I
10.1007/s00216-003-1803-7
中图分类号
Q5 [生物化学];
学科分类号
071010 ; 081704 ;
摘要
A laboratory-made cryogenic modulator for comprehensive two-dimensional gas chromatography (GCx GC) was constructed and evaluated. Analytes were trapped with carbon dioxide and desorbed with heated GC oven air. The GC x GC system included a non-polar first-dimension column and a semi-polar second-dimension column connected to a flame ionisation detector. A laboratory-written Matlab-based program was used for the data analysis. Peak widths at half height for n-alkanes, obtained with use of new modulator, were at narrowest 60 ins.
引用
收藏
页码:725 / 731
页数:7
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