BENZENE CHARGE-EXCHANGE AT ATMOSPHERIC-PRESSURE FOR LOW-LEVEL DETECTION OF POLLUTANTS IN AMBIENT AIR

被引：17

作者：

KETKAR, SN

DULAK, JG

DHEANDHANOO, S

FITE, WL

机构：

[1] Extrel Corporation, Pittsburgh, PA 15238

来源：

ANALYTICA CHIMICA ACTA | 1991年 / 245卷 / 02期

关键词：

MASS SPECTROMETRY; AIR; BENZENE; CHARGE EXCHANGE; CHLOROETHYL ETHYL SULFIDE;

D O I：

10.1016/S0003-2670(00)80231-7

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Charge exchange using the benzene molecular ion in a corona discharge atmospheric pressure ionization source is shown to be extremely sensitive for detecting low proton affinity compounds in air. Experiments performed on an Extrel API tandem mass spectrometric system indicated a limit of detection of 12.7 ppt for the detection of 2-chloroethyl ethyl sulfide in air.

引用

页码：267 / 270

页数：4

共 15 条

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