Semi-rotating cryogenic modulator for comprehensive two-dimensional gas chromatography.
作者信息
Kallio Minna, Hyötyläinen Tuulia, Jussila Matti, Hartonen Kari, Palonen Sami, Shimmo Masahiko, Riekkola Marja-Liisa
机构信息
Laboratory of Analytical Chemistry, Department of Chemistry, University of Helsinki, P.O. Box 55, 00014 Helsinki, Finland.
出版信息
Anal Bioanal Chem. 2003 Mar;375(6):725-31. doi: 10.1007/s00216-003-1803-7. Epub 2003 Mar 11.
A laboratory-made cryogenic modulator for comprehensive two-dimensional gas chromatography (GCxGC) was constructed and evaluated. Analytes were trapped with carbon dioxide and desorbed with heated GC oven air. The GCxGC 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 ms.
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