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试样经微波消解后,采用ICP-AES测定铜精矿中的硫含量。按本法所测铜精矿标准物质(GBW 07166)中硫含量,推荐值为33.8%±0.3%,6个平行样测定平均值为33.6%,测定结果的相对标准偏差RSD为0.318%。
After the sample was digested by microwave, the content of sulfur in the copper concentrate was determined by ICP-AES. The recommended value of sulfur content in the standard substance of copper concentrate (GBW 07166) measured by this Law is 33.8% ± 0.3%. The average of six parallel samples is 33.6%. The relative standard deviation (RSD) of the determination results is 0.318%.