论文部分内容阅读
含氯有机化合物在化学工业、医药工业和农业中应用较广泛,因此可以通过多种途径进入环境。在环境水系中的这些有机污染物,虽然有的存在量极微,但已足以危及人类健康和生态环境。美国环保局清洁水法案中规定的114种优先分析的有机污染物中含氯有机物占55％左右。由于这些物质的来源广而杂,存在形式多样又易于变迁,因此对这些物质的存在品种和数量的监测是当前环境科学中的一个重要研究课题。从分析化学的观点来看,环境中有机污染物的分析实际上是一项复杂系统的痕量分析。
Chlorinated organic compounds are widely used in the chemical industry, pharmaceutical industry and agriculture and therefore can enter the environment in many ways. These organic contaminants in environmental water systems, although present in very small quantities, are sufficient to endanger human health and the environment. Of the 114 priority organic pollutants specified in the EPA’s Clean Water Act, about 55% are chlorine-containing organic compounds. Due to their wide variety and diverse sources, they exist in various forms and are subject to change. Therefore, the monitoring of the species and quantities of these substances is an important research topic in current environmental science. From the analytical chemistry point of view, the analysis of organic pollutants in the environment is actually a complex and systematic trace analysis.