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我厂用一号以上的纯锡进行热镀马口铁生产,由于纯锡中砷元素对人体有毒害,其含量需要严格的控制。测定纯锡中砷元素最常用的方法有卑亚磷酸盐容量法和钼蓝比色法。前者分析时间较长,麻烦,含砷量太低时,准确度不够满意。我室曾经按照国家标准的钼蓝比色法进行测定。感到此法的重现性和稳定性
I plant with more than one tin for hot dip tinplate production, as arsenic in pure tin poisoning of the human body, its content needs strict control. The most commonly used method for the determination of arsenic in pure tin is the basephosphate capacity assay and the molybdenum blue assay. The former analysis time is longer, trouble, the arsenic content is too low, the accuracy is not enough satisfaction. My room had been measured in accordance with the national standard molybdenum blue colorimetric method. Feel the reproducibility and stability of this law