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1、前言在七十年代初期,日本各地发现了一种骨痛病患者,造成这种病的原因是由于镉在体内蓄积而引起中毒,由于镉的污染造成了社会性的大灾难。就镉的危害性来说,环保法规定在公共水域中镉的含量标准为0.001PPM以下,根据其它各种法律也分别规定其各种标准值。为了判断试样是否超过有害物质存在的规定标准值,对镉来说必须分析至0.001PPM。并能分析到标准值的一位数以下。公认的镉分析法,有双硫腙分光光度
1. Introduction In the early 1970s, a patient with bone pain was found in various parts of Japan. The cause of this disease was poisoning caused by the accumulation of cadmium in the body and a social catastrophe due to the pollution of cadmium. As far as the harmfulness of cadmium is concerned, the Environmental Protection Law stipulates that the content of cadmium in public waters should be less than 0.001PPM. Various kinds of standard values are also stipulated under other laws. In order to determine whether the sample exceeds the specified standard value for the presence of hazardous substances, cadmium must be analyzed to 0.001PPM. And can analyze the standard value of one digit below. Recognized cadmium analysis, dithizone spectrophotometry