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环境致癌的研究表明,镍对有机体组织具有一定的渗透力,可使RNA的合成受阻,因此,可能干扰某些基因的复制和细胞分裂的控制,导致细胞恶性转化。1979年国际癌症研究中心将镍的精炼过程确定为是对人类具有致癌性的。镍作为工业污染物存在于煤、石油及其产物的燃烧过程,因此环境分析测镍是需要的。目前,测镍的试剂中含肟官能团的占主要地位,其中丁二酮肟萃取光度法是测镍最常用的方法,但其选择性不好,而灵敏度也仅为ε_(375)~(CHCI3)=3.45×10~4ι·mol~(-1)·cm~(-1)。经研究
Environmental carcinogenic studies have shown that nickel has a certain permeability to the tissues of organisms, which hinders the synthesis of RNA and therefore may interfere with the gene duplication and cell division control of certain genes, leading to malignant transformation of cells. In 1979, IARC identified the nickel refining process as being carcinogenic to humans. Nickel as an industrial pollutant exists in the combustion of coal, petroleum and its products, so environmental analysis of nickel is needed. At present, the reagent for measuring nickel occupies the main position containing the oxime functional group, and the dimethylglyoxime extraction spectrophotometry is the most commonly used method for nickel determination, but its selectivity is not good, but its sensitivity is only ε_ (375) ~ (CHCl 3 ) = 3.45 × 10 ~ 4 · mol ~ (-1) · cm ~ (-1). After studying