磺胺甲唑的库仑滴定研究 |
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引用本文: | 冯颖铎,汪瑗,王京苏. 磺胺甲唑的库仑滴定研究[J]. 分析试验室, 1997, 0(6) |
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作者姓名: | 冯颖铎 汪瑗 王京苏 |
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作者单位: | 首都师范大学化学系 |
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摘 要: | 本文报告了用库仑滴定法测定磺胺甲口恶唑的含量,以0.5mol/L溴化钾-1mol/L硝酸钾-1mol/L乙酸(1+1+1V/V)混合液为电解液,在阳极电生溴,磺胺甲口恶唑分子中苯环上氨基邻位氢被溴取代。以电生溴过量电流上升法指示终点,根据法拉第定律计算,该取代反应电子数n值为2,从而建立了磺胺甲口恶唑含量测定的新方法。
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关 键 词: | 库仑滴定;磺胺甲唑 |
Coulonetric Titration for the Determination of Sulphamethylthiazole |
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Abstract: | A method was introduced for the determination of suplphamethylthiazole by coulometric titration,which was carried out in a mixture of 0.5mol/L KBr 1mol/L KNO 3 and 1mol/L HAc(1+1+1, V/V ).Bromine was generated at the anode and reacted with sulphamethylthiazole.The n value was 2.This method is simple,rapid ,accurate,sensitive and reproducible.It was applicalbe for analyzing samall amounts of sample. |
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Keywords: | Coulometric titration sulphamethylthiazole |
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