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用GB2449-92规定的二乙基二硫代氨基甲酸银光度法测定硫磺中的砷含量,并对测定方法进行了改进,减少了工作曲线中砷标准溶液取样量,将砷的最小检知量由GB2449-92规定的w=0.0001%降低到w=0.00001%,取得了较好的效果。
The content of arsenic in sulfur was determined by silver diethyldithiocarbamate photometric method as specified in GB2449-92. The measurement method was improved to reduce the sampling amount of arsenic standard solution in the working curve. The minimum arsenic detection The amount of GB2449-92 by the provisions of w = 0.0001% to w = 0.00001%, and achieved good results.