COLLECTION AND ANALYSIS OF TRACE ORGANIC VAPOR POLLUTANTS IN AMBIENT ATMOSPHERES - PERFORMANCE OF A TENAX-GC ADSORBENT TUBE

被引：263

作者：

BROWN, RH

PURNELL, CJ

机构：

[1] Occupational Hygiene and Medicine Laboratories, London, NW2 6LN

来源：

JOURNAL OF CHROMATOGRAPHY | 1979年 / 178卷 / 01期

关键词：

D O I：

10.1016/S0021-9673(00)89698-3

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The technique by which organic contaminants in ambient air are analysed by adsorption on porous polymers and subsequent thermal desorption into a gas chromatograph is gaining in popularity. We present here an analysis of the adsorption characteristics of one of the commonly used adsorbents, Tenax-GC. The capacity of this adsorbent to collect a variety of organic vapours has been investigated with respect to changes in sampling flow-rate, temperature, vapour concentration and humidity. Safe sampling volumes are tabulated for 71 organic compounds, and a plot is presented for the interpolation of estimated values for unlisted compounds. © 1979.

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页码：79 / 90

页数：12

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