论文部分内容阅读
在染料、炸药等工业废水中往往同时含有一硝基甲苯、二硝基甲苯和三硝基甲苯,这些废水排出后会污染地面水,渗入地下污染地下水,有害农业、渔业,饮用则有害身体健康,因此国家对其规定了排放标准,为了了解各自的含量,需要分别进行测定。关于水中一、二和三硝基甲苯分别测定方法,见到的报导不多,根据工作需要并参考有关资料,利用薄层法将一、二和三硝基甲苯进行分离,以分光光度法分别定量,通过实践感到本法对几种硝基甲苯共存时分离效果较好,操作手续简便易行,现将方法介绍如下。
Nitrobenzene, dinitrotoluene and trinitrotoluene are often contained in industrial wastewaters such as dyes and explosives. These discharged waste water will pollute the surface water, infiltrate the ground to pollute the groundwater, harmful to agriculture, fishery and drinking, which will harm the health of the people , So the state has set the emission standards for them, in order to understand their respective content, the need for separate determination. On the water one, two and three nitrotoluene, respectively, to determine the method to see the report is not much, according to the needs of work and with reference to the relevant information, the use of thin layer method will be one, two and three nitrotoluene were separated by spectrophotometry Quantitative, through the practice of this law on the co-existence of several nitrotoluene separation effect is better, the operating procedure is simple and easy, the method described below.