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本文研究了平台石墨炉原子吸收法直接测定合金钢中的痕量镉,不需分离,不需加基体改进剂。测定范围为Cd 1μg/g～10μg/g;相对标准偏差为9.0%～14.0%;回收率为98%～102%。
In this paper, the direct determination of trace cadmium in alloy steel by graphite furnace atomic absorption spectrometry has been studied. Without separation, no matrix modifier is needed. The determination range was Cd 1μg / g ~ 10μg / g; the relative standard deviation was 9.0% ~ 14.0%; the recovery was 98% ~ 102%.