固体吸附剂管采样及甲醛的离子色谱分析

Solid sorbent tube sampling and ion chromatographic analysis of formaldehyde.

作者信息

Kim W S, Geraci C L, Kupel R E

出版信息

Am Ind Hyg Assoc J. 1980 May;41(5):334-9. doi: 10.1080/15298668091424843.

Abstract

A new method for the collection and analysis of atmospheric formaldehyde is described. Known concentrations of formaldehyde were generated and collected on solid sorbent tubes containing impregnated charcoal which converted formaldehyde to formate. After desorption with dilute hydrogen peroxide, the formate was analyzed by ion chromatography. The sample generation system, collection on impregnated charcoal, desorption, ion chromatographic analysis, and recoveries are presented. The overall recovery of laboratory generated samples was 100% with 11% relative standard deviation. These samples were collected at 50 cc/min and 200 cc/min.

摘要

描述了一种收集和分析大气中甲醛的新方法。生成已知浓度的甲醛，并收集在含有浸渍炭的固体吸附剂管上，浸渍炭将甲醛转化为甲酸盐。用稀过氧化氢解吸后，通过离子色谱法分析甲酸盐。介绍了样品生成系统、在浸渍炭上的收集、解吸、离子色谱分析及回收率。实验室生成样品的总回收率为100%，相对标准偏差为11%。这些样品的采集流速为50毫升/分钟和200毫升/分钟。