TWO-DIMENSIONAL GAS CHROMATOGRAPHY FOR DETERMINATION OF VOLATILE COMPOUNDS IN AMBIENT AIR.

被引：0

作者：

Berg, S. ^{[1
]}

Jonsson, A. ^{[1
]}

机构：

[1] Univ of Stockholm, Dep of Analytical, Chemistry, Stockholm, Swed, Univ of Stockholm, Dep of Analytical Chemistry, Stockholm, Swed

来源：

HRC & CC. Journal of high resolution chromatography & chromatography communications | 1984年 / 7卷 / 12期

关键词：

CHROMATOGRAPHIC ANALYSIS - Equipment;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

A two-dimensional gas chromatograph is described for the analysis of volatile compounds. The chromatographic system consists of two separate chromatographs linked together with an interface containing an intermediate trap. The trap is cooled with nitrogen ( minus 150 degree C) and a cryogradient is created inside the trap enclosure. The sample is reinjected during controlled (chromatographic) conditions, using thermostated air. The sample components are eluted from the trap as narrow symmetrical peaks; the shape and width of the peaks eluted do not noticeably affect the subsequent chromatography. The enrichment of n-butane in the trap is quantitative in the range 10** minus **1**0-10** minus **5 g.

引用

页码：687 / 695