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钛(Ⅳ)—偶氮氯膦mA—盐酸羟胺—OP—吐温80体系的研究
Study on the System Ti(IV)-Chlorophosphonazo mA- H2NOH·HCI-TritonX-100-Tween 80
【摘要】 研究了题示的多元络合物的最佳形成条件,其显色后ε可达4×10~5以上,是迄今测定钛灵敏度最高的分光光度法。
【Abstract】 In a buffer solution of HAc-NH4Ac at pH 4.65-5.20, Ti(IV)reacts with chlorophosphonazo mA-H2NOH . HCl-TritoaX-100-Tween 80 to form a complex, which has two very evident absorption peaks at 632 nm and 691 nm. The molar ratio of complex is Ti(IV) : CPAmA-1 :2. The molar absorptivity is 2.50X106 at 691am and the contract AX=141nm. Beer’s law is obeyed in the range of 1-4ug/25ml for Ti(IV).
- 【文献出处】 冶金分析 ,Metallurgical Analysis , 编辑部邮箱 ,1990年05期
- 【被引频次】5
- 【下载频次】15