保险铅丝 Safety fuses ; lead fuse wire
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样品采用盐酸和过氧化氢分解，对测定条件进行了探讨，不用分离保险丝中的主要成分铅和锌，直接测定铜、铁、锌。
The sample is treated with hydrochloric acid and hydrogen peroxide. The analytical conditions have been studied. The elements of coper, iron and zinc can be determined in the presence of lead and tin.
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