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建立了H_2SO_4—HNO_3—KMnO_4氧化消化/冷原子吸光光度法测定煤中痕量总汞,并研究了最佳消化条件,即H_2SO,HNO_3,KMnO_4依次分步加入,效果最好。
The HgSO_4-HNO_3-KMnO_4 oxidation digestion / cold atomic absorption spectrometry was established for the determination of trace mercury in coal. The optimum digestion conditions were H_2SO_4-HNO_3-KMnO_4.