气相色谱/原子发射检测器(GC/AED)在环境化学分析中的应用

概述了GC/AED的原理、特点及其在环境化学分析中的应用,例如,分析地表水中1 μg/L水平的有机氯、有机磷、有机氮和有机硫化物农药。AED可检测C、S、P、Cl、N等25种元素。通常需要几种不相同的常用的选择性检测器才能检测上述农药中不同的原子,这些检测器包括电子捕获检测器、氮磷检测器、火焰光度检测器和霍尔电导检测器。 

Application of Gas Chromatography/Atomic Emission Detection (GC/AED) in Environmental Chemical Analysis

The principles, characteristics and application of GC/AED in environmental analysis are summarized in this paper. The organochlorine, organophosphorus, organonitrogen and organosulfur pesticides in the surface water at 1μg/L level were analyzed. 25 elements including carbon, sulfur, phosphorus, chlorine and nitrogen may be determined by using AED. Usually several different conventional selective detectors such as electron capture detector (ECD), nitrogen phosphorus detector (NPD), flame photometric detector (FPD) or Hall electrolytic eonduetivity detector are required to detect the heteroatoms in the pesticides mentioned above.