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测定土壤和土壤添加剂的硝酸提取液中微量砷时,硝酸离子会干扰砷化三氢和三氯化砷的砷的离析。本文提出用甲酸还原法快速去除硝酸离子。
Determination of trace amounts of arsenic in nitric acid extracts of soil and soil additives, nitrate ions can interfere with arsenic triazide and arsenic trirsenic segregation. In this paper, the rapid reduction of nitrate ions by formic acid reduction is proposed.