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测定水中矿物油的含量是环境保护监测重要项目之一,我国国标建(G.B.J)—1—62规定地面水中石油及石油产品最高容许浓度是:多硫的,0.1毫升/升;其它的,0.3毫克/升。世界卫生组织1971年公布的饮用水质标准中规定矿物油含量为0.1毫克/升,0.3毫克/升,而以后者为最大容许浓度。水中微量矿物油的测定方法有红外分光光度法,紫外分光光度法和萤光法等。在国内以紫外法应用较广并被推荐为水质污染的统一分析测试方法。紫外法是依据矿物油中所含的芳烃在紫外部分具有特征吸收能力作为理论基础的,但芳烃不是矿物油的主要成分,并且某些芳烃含量较低的矿物油的特征吸收峰呈平坦状,致使灵敏度降低。另外,
Determination of the content of mineral oil in water is one of the important items of environmental protection monitoring. The maximum allowable concentration of petroleum and petroleum products in surface water of GBJ-1-62 stipulated in our country is: polysulfide, 0.1ml / l; others, 0.3 Mg / l. World Health Organization published in 1971 drinking water quality standards for mineral oil content of 0.1 mg / l, 0.3 mg / l, while the latter is the maximum allowable concentration. Determination of trace mineral oil in water are infrared spectrophotometry, UV spectrophotometry and fluorescence method. In the country to apply a wider UV method and is recommended for the uniform analysis of water pollution testing methods. UV method is based on the aromatic hydrocarbons contained in mineral oil in the UV part of the characteristic absorption capacity as a theoretical basis, but aromatic hydrocarbons are not the main component of mineral oil, and some aromatic hydrocarbons lower mineral oil characteristic absorption peak was flat, Resulting in reduced sensitivity. In addition,