五铬紫-溴化十六烷基三甲胺-镍三元反应

Pontachrome violet SW - cetyl trimethylammonium bromide-nickel ternary reaction

利用光谱修正技术研究了在pH 1 0 .5介质中五铬紫 (PCV) -镍络合物在溴化十六烷基三甲胺 (CTAB)胶束上的配位反应 ,分析了表面活性剂在配位反应中的增效机理。结果表明PCV -Ni-CTAB三元结合物聚集态为 (Ni·PCV4·CTAB8) 1 0 ,该反应已用于样品中微量Ni的测定 ,结果良好。

We have studied the interaction of pontachrome violet SW (PCV) with cetyl trimethylammonium bromide (CTAB) and Ni(II) at pH 10.5. The concentration and aggregation of PCV on CTAB micelle provides the Sens;five complexation between Ni(II) and PCV with a catalytic field. Results have showed that the final aggregate (Ni.PCV 4CTAB 8) 10 ,is formed. The ternary reaction was applied to the sensitive detection of Ni traces in samples with satisfactory results