Spectrophotometric determination of zinc with phenylfluorone in the presence of triton X-100 and cetylpyridinium chloride

被引：0

作者：

Winkler, W ^{[1
]}

Arenhövel-Pacula, A ^{[1
]}

机构：

[1] Silesian Univ, Inst Chem, PL-40006 Katowice, Poland

来源：

CHEMIA ANALITYCZNA | 1999年 / 44卷 / 04期

关键词：

zinc; phenylfluorone; Triton X-100; cetylpyridinium chloride; insulin; spectrophotometry;

D O I：

暂无

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Spectrophotometric determination of zinc using the reaction with phenylfluorone (PF) in the presence of cetylpyridinium chloride (CP) and Triton X-100 was elaborated. Optimum concentrations of PF, CP and Triton X-100, and pH ensuring maximum absorbance were defined. The effect of foreign ions was elucidated. The maximum absorbance is observed at 573 nm with the molar absorptivity 1.09x10(5) l mol(-1) cm(-1). The Beer's law is obeyed for zinc concentrations in the range 0.04-0.4 mu g ml(-1). The method has been applied for determination of zinc in insulin.

引用

页码：725 / 730

页数：6

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