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本文以王水溶解煤样后,由NaBH_4还原砷为AsH_3,用原子荧光法直接测定煤中砷。方法简便、快速、准确度高,检测限0.9ng/ml。
In this paper, after dissolving the coal sample with aqua regia, arsenic is reduced to AsH_3 by NaBH_4, and the arsenic in coal is directly determined by atomic fluorescence spectrometry. The method is simple, rapid and accurate. The detection limit is 0.9ng / ml.