不少人对Mo的胶束增溶分光光度法进行了研究,这些方法不同程度地提高了测定的灵敏度。在溴化十六烷基吡啶存在下,茜素红能与Mo生成桔红色的络合物,我们进一步研究了络合物形成的条件和组成,并应用于微量Mo的测定上。方法快速,简便、稳定性奸,用草酸、EDTA有效地排除W、Pb、Cr等干扰,选择性较好。曾应用建立的方法测定某些钢铁和矿石中Mo,获得满意的结果。 Many people studied Mo micellar solubilization spectrophotometry, these methods to varying degrees to improve the sensitivity of the assay. In the presence of cetylpyridinium bromide, alizarin red can form orange complex with Mo. We further studied the conditions and composition of complex formation and applied it to the determination of trace Mo. The method is rapid, simple and stable, with oxalic acid and EDTA effectively eliminating the interference of W, Pb and Cr, with better selectivity. The established method has been used to determine Mo in some steel and ore to obtain satisfactory results.