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本文提出了一个测定大气粉尘中Cr(Ⅵ)的新方法。本法消除了重金属离子、还原性无机和有机物质对浸取和测定所造成的干扰,从而使分析结果的准确度和精密度大为提高。
This paper presents a new method for the determination of Cr (Ⅵ) in atmospheric dust. This method eliminates the interference of heavy metal ions, reducing inorganic and organic substances caused by the leaching and determination, thus greatly improving the accuracy and precision of the analysis results.