【摘要】 长碳链两性表面活性剂十八烷基二甲基氨基乙酸和乳化剂OP对锆与铬天青B的显色反应有很强的增敏作用,摩尔吸光系数达1.98×10⁵L·mol^-1·cm^-1。而且反应可在较高酸度（PH1.0～1.5）进行,因而具有良好的选择性。方法成功地应用于铝镁合金、铜合金、镍合金和钴合金等合金样品中微量锆的直接测定。更多还原

【Abstract】 In the presence of octadecyldimethylammonium acetate（ODMAA）and emulsifier OP the colour reaction of Zr with chromazurol B（CAB）has quite high sensitivity(ε₆₆₀=1. 98×10⁵·1·1mol^-1·Cm^-1)The reaction may proceed in stronger acidity（pH1. 0—1. 5）, therefore its selectivity is favourably good. The present method has been successfully applied to the direct determination of trace Zr in alloys of Al-Mg, Cu, Ni and Co.更多还原