| 基于Berthollet反应示波极谱法测定水中微量氨 |
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| 引用本文： | 刘海军.基于Berthollet反应示波极谱法测定水中微量氨[J].干旱环境监测,1999,13(3):138-140. |
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| 作者姓名： | 刘海军 |
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| 作者单位： | 辽宁省本溪冶金高等专科学校!本溪117022 |
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| 摘 要： | 在亚硝基铁氰化钾存在下，氨在氢氧化钠介质中与苯酚、次氯酸钠反应，其产物靛酚在滴汞电极上产生－灵敏的吸附波，ＮＨ３－Ｎ在０．００３～０．２２ｍｇ／Ｌ内，导数峰电流与其呈良好的线性关系。用于环境水中ＮＨ３－Ｎ的测定，其相对标准偏差小于３％，回收率为９７％～１０５％，方法具有较好的选择性。
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| 关 键 词： | 氨 示波极谱法 吸附波 水质监测 微量 |
OSCILLOPOLAROGRAPHIC DETERMINATION OF TRACE AMOUNT OF NH\-3 IN WATER BASED ON THE REACTION OF BERTHOLLET |
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| Liu Haijun.OSCILLOPOLAROGRAPHIC DETERMINATION OF TRACE AMOUNT OF NH\-3 IN WATER BASED ON THE REACTION OF BERTHOLLET[J].Arid Environmental Monitoring,1999,13(3):138-140. |
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| Authors: | Liu Haijun |
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| Abstract: | It has been found that the reaction product of NH\-3 with phenol and sodiam hypochlorite could produce a sensitive polarographic wave at -0.42V in the presence of NaOH and K\-2Fe(CN)\-5 NO.Linear relationship between derivative wave height and concentration of NH\-3-N could be obtained in the range of 0.003-0.22mg/L.The method has been used for determination of NH\-3-N in environmental water.The results show that the relative standard deviation is less than 3%,the recovery is 97-105%, the method is high selective. |
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| Keywords: | Ammonia Oscillopolarography Adsorptive wave |
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