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研究了在混合表面活性剂溴化十六烷基吡啶（ＣＰＢ）及乳化剂ＯＰ存在下，二溴羟基苯基荧光酮（ＤＢＨＰＦ）与铜显色反应的条件。结果表明：在ｐＨ５．４的六次甲基四胺ＨＣｌ缓冲介质中，ＤＢＨＰＦ与铜生成紫色络合物，λｍａｘ＝５３８ｎｍ，ε５３８＝１．６５×１０５Ｌ·ｍｏｌ－１·ｃｍ－１。铜量在０～３６０μｇ／Ｌ符合比尔定律。方法经实际试样验证，结果与原结果相符。对ｗ（Ｃｕ）为０．０４４％～０．３％的样品进行测定，ＲＳＤ（ｎ＝６）为１．７１％～５．５３％。
The conditions for the color reaction of dibromohydroxyphenylfluorone (DBH-PF) with copper in the presence of a mixed surfactant, cetyl pyridinium bromide (CPB) and emulsifier OP were studied. The results showed that the purple complex of DBH-PF and copper was formed in hexamethylenetetramine-HCl buffer medium at pH5.4 with λmax = 538nm and ε538 = 1.65 × 105L · mol-1 · cm-1 . Beer’s law is obeyed at 0 ~ 360μg / L. The method is verified by the actual sample, the result is consistent with the original result. The samples with w (Cu) of 0.044% -0.3% were measured with RSD (n = 6) of 1.71% -5.53%.