| 水中苦味酸的极谱法测定 |
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| 引用本文： | 刘念辉,张宝华.水中苦味酸的极谱法测定[J].上海环境科学,1993(10). |
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| 作者姓名： | 刘念辉 张宝华 |
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| 作者单位： | 机电部工程设计研究院，机电部工程设计研究院 北京 100053，北京 100053 |
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| 摘 要： | 的MCllvaine缓冲溶液(pH4.9)中,苦味酸有良好的示波极谱峰和微分脉冲极谱峰,其3个峰的电位于-0.22V、-0.33V和-0.4V(SCE),或于-0.21V、-0.31V和-0.40V(银/氯化银)。线性测定的浓度范围为0.005～2.00mg/1,最小检出浓度为0.1ng/ml,平均回收率为99.7％。方法操作简便,可用于水和废水的测定。
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| 关 键 词： | 苦味酸 极谱 水 环境监测 |
Determination of Picric Acid in Water by Polarogrephic Method |
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| Liu Nian-hui Zhang Bao-hua.Determination of Picric Acid in Water by Polarogrephic Method[J].Shanghai Environmental Science,1993(10). |
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| Authors: | Liu Nian-hui Zhang Bao-hua |
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| Abstract: | Using Mcllvaine buffer solution (pH 4.9), picric acid gave well. shaped wave with three peaks appeared at -0.22v, -0.33v and -0.43v (vs.SCE), or at -0.21v,-0.31vand-0.40v (vs. Ag/AgCl). An excellent Linear relationship between current peak and concentration was obtained over the rang of 0.05-2.00 mg/l. The detection Limit was 0.1 mg/l. The test results of reproducibility were 95-105%, average value was 99.7%. |
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| Keywords: | Picric acid Polarography |
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