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研究了以溴化十六烷基三甲基铵 /正丁醇 /正庚烷 /水组成的微乳液为介质 ,水杨基荧光酮为显色剂 ,Cu(Ⅱ )的光度测定体系。其表观摩尔吸光系数ε =1 .1 4× 1 0 5 L .mol 1.cm 1与CTMAB胶束体系相比较 (ε=9.3× 1 0 4L .mol 1.cm 1)灵敏度提高 2 2 %。方法用于锌白铜和水样分析 ,结果令人满意。
The photometric determination system of Cu (Ⅱ) with salicylfluorone as chromogenic agent and microemulsion composed of cetyltrimethylammonium bromide / n-butanol / n-heptane / water was studied. The apparent molar absorptivity ε = 1.14 × 10 05 L · mol · cm -1 and CTMAB micellar system (ε = 9.3 × 10 4 L · mol · cm -1) increased the sensitivity by 22% . The method was applied to the analysis of zinc white copper and water samples with satisfactory results.