COMPARISON OF SAMPLE CONCENTRATION METHODS AND CORRELATION CHROMATOGRAPHY FOR POLYMER DYNAMIC HEADSPACE STUDIES

被引：12

作者：

KALJURAND, M ^{[1
]}

SMIT, HC ^{[1
]}

机构：

[1] UNIV AMSTERDAM,ANALYT CHEM LAB,1018 WV AMSTERDAM,NETHERLANDS

来源：

CHROMATOGRAPHIA | 1994年 / 39卷 / 3-4期

关键词：

GAS CHROMATOGRAPHY; CORRELATION CHROMATOGRAPHY; CONCENTRATION METHODS; POLYMER DYNAMIC HEADSPACE SAMPLING;

D O I：

10.1007/BF02274502

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

Gas chromatography has been used to study the kinetics of evolution of volatiles from polypropylene samples (at 70 degrees C). Correlation chromatography (CC) and the trapping of volatiles on Tenax sorbents and activated charcoal were employed to improve the detector signal. As a reference, the kinetics of gas evolution was studied by making a series of direct single injections of polymer head-space gas on a GC column. The results of trapping differed from those obtained by single injection. However, the data from single injections and CC were in good agreement. The CC method was found to offer far more operator convenience for dynamic head-space analysis than sample trapping, being less subject to operator errors.

引用

页码：210 / 215

页数：6