This paper investigates the residual levels of OCPs in water from the industrialand urban sewage and several rivers in Beijing by using solid phase extraction(SPE)and gas-chromatography/electron-capture detection (GC/ECD).

• 本论文采用固相萃取前处理技术和气相色谱(电子捕获检测器)方法分析研究了北京地区重点污染点源(包括工业废水和生活污水)和地表水中有机氯农药的污染残留情况。