| 滴汞电极2.5次微分电分析法测定天然水中痕量钛 |
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| 引用本文： | 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. |
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| 作者姓名： | 阮源萍 万桢 |
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| 作者单位： | 厦门大学化学系 |
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| 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。
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| 收稿时间： | 1986-03-24 |
| 修稿时间： | 1986-06-28 |
2.5TH OROER DIFFERENTIAL ELECTROANALYSIS OF TITANIUM IN NATURAL WATER WITH DROPPING MERCURY ELECTRODE |
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| 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. |
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| Authors: | Ruan Yuanping Wan Zhen |
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| Institution: | Department of Chemistry, Xiamen University |
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| 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. |
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