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北京农药一厂生产农药杀螟松过程中排放有害物质4-硝基間甲酚,污染河道。为配合治理和对河道的监测,需要建立适当的分析方法,本文介紹用气相色譜法測定污水中微量4-硝基間甲酚。由于4-硝基間甲酚极性强,沸点較高,通常需要将其轉变成相应的衍生物,再进行气相色譜分析。已有报导的是将其轉变成三甲基硅醚、甲醚2.4二硝基酚醚及甲氧基苯胺——三氟乙酰胺等衍生物,随后用电子捕获检測器或氢火焰离子化检測器进行
Pesticide pesticides in Beijing a pesticide production process fenitrothion discharge of harmful substances 4-nitro-m-cresol, pollute the river. In order to cooperate with the monitoring and monitoring of the river, we need to establish a proper analytical method. This article describes the determination of trace 4-nitro-m-cresol in sewage by gas chromatography. Since 4-nitro-m-cresol is very polar and has a relatively high boiling point, it is often necessary to convert it to the corresponding derivative before gas chromatographic analysis. It has been reported that it is converted into trimethylsilyl ether, methyl ether 2.4 dinitrophenol ether and methoxyaniline - trifluoroacetamide and other derivatives, followed by electron capture detector or flame ionization Detector