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文献曾报导用铬天青S和十四烷基二甲基苄基氯化铵光度法测定钒,但只能在20分钟内稳定。王怀公则用邻苯二酚紫和CPC光度法测定钒。我们研究了用埃铬青R(ECR)和十六烷基三甲基溴化铵(CTAB)光度法测定钒的反应条件和络合物的组成;研究了试剂加入顺序与反应速度之间的关系,提出了对文献中关于反应速度问题的补充。该络合物
It has been reported in the literature that vanadium is measured with chrome azure S and tetradecyldimethylbenzylammonium chloride but only within 20 minutes. Wang Huai public use of catechin purple and CPC spectrophotometric determination of vanadium. We studied the reaction conditions and the composition of the complex with vanadium cyanide R (ECR) and cetyltrimethylammonium bromide (CTAB) spectrophotometry. The effects of the reagent addition order and the reaction rate Relationship, proposed in the literature on the speed of response to supplement. The complex