滴汞电极2.5次微分电分析法测定天然水中痕量钛

摘要/Abstract

摘要： 天然水中钛的定量分析有分光光度法、极谱法、催化波法等方法。微分电分析法尚未见报导。本文得出了以0.02M苦杏仁酸-4%氯酸钾(pH=3)为底液时,钛在滴汞电极上2.5次微分电分析法催化波,峰形明晰、干扰少、线性范围为1×10^-10-1×10^-7g/ml钛。可直接用于天然水中痕量钛的测定。

Abstract: The 2.5th order differential pulse polarography has been investigated for titanium determination in natural water using a dropping mercury electrode. The optimum electrolyte system was found consisted of 0.02M mandelic acid and 4% potassium chlorate (PH=3), in which a well-defind neopolarogram of titanium was observed. The negative peak potential E"np was at -0.87V (vs.SCE). A linear dependence of peak hight on titanium concentration over a range of 1?10^-10-1?10^-7g/ml was found. The method proved quite adequate in its sensitivity, rapidity and simplicity with recovery of 96-110% and minor inteference from a number of common ions.

阮源萍, 万桢. 滴汞电极2.5次微分电分析法测定天然水中痕量钛[J]. 应用化学, 1987, 0(1): 70-72.

Ruan Yuanping, Wan Zhen. 2.5TH OROER DIFFERENTIAL ELECTROANALYSIS OF TITANIUM IN NATURAL WATER WITH DROPPING MERCURY ELECTRODE[J]. Chinese Journal of Applied Chemistry, 1987, 0(1): 70-72.

滴汞电极2.5次微分电分析法测定天然水中痕量钛

2.5TH OROER DIFFERENTIAL ELECTROANALYSIS OF TITANIUM IN NATURAL WATER WITH DROPPING MERCURY ELECTRODE

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