HALOCARBON INTERFERENCES IN CHEMILUMINESCENT MEASUREMENTS OF NOX

被引：11

作者：

JOSHI, SB ^{[1
]}

BUFALINI, JJ ^{[1
]}

机构：

[1] US EPA, RES TRIANGLE PK, NC 27711 USA

来源：

ENVIRONMENTAL SCIENCE & TECHNOLOGY | 1978年 / 12卷 / 05期

关键词：

D O I：

10.1021/es60141a013

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Anomalous NOx responses were observed when halocarbons were irradiated in the presence of oxides of nitrogen. Interferences to a chemiluminescent NOx monitor using a heated carbon converter were studied for phosgene, trichloroacetyl chloride, chloroform, chlorine, and hydrochloric acid. Data show positive interference in the NOx monitor due to the test compounds, either individually or as mixtures. Substituting a FeSO4 converter for the heated carbon converter may solve the problem. This information may be of particular interest to smog chamber researchers and to those making NO2 measurements in areas where halocarbon levels are relatively high. It is speculated that excited O2 molecules may be the interfering compound, but additional work is needed to substantiate this hypothesis. © 1978, American Chemical Society. All rights reserved.

引用

页码：597 / 599

页数：3

共 7 条

[1] ATMOSPHERIC OXIDATION OF CHLORINATED ETHYLENES [J].