| 紫外分光光度法测定环境水中的硝酸盐氮 |
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| 引用本文： | 李红玫,赵仑.紫外分光光度法测定环境水中的硝酸盐氮[J].长春师范学院学报,2003(2). |
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| 作者姓名： | 李红玫 赵仑 |
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| 作者单位： | 长春师范学院化学系，长春师范学院化学系 吉林长春 130032，吉林长春 130032 |
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| 摘 要： | 本文基于硝酸盐氮在201.2nm处有强烈吸收,且干扰少,在PH=8碱条件下,建立了用紫外分光光度法直接测定水样中的硝酸盐氮的方法。硝酸盐氮在0～7.0mg/L范围内遵守比尔定律。加标回收率为99.1％～100.1％,检出限0.1000mg/L。可用于自来水,湖水中硝酸盐氮的测定,结果满意。
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| 关 键 词： | 紫外分光光度法 硝酸盐氮 氮 |
Determination of Nitrate-Nin ,Water by Ultraviolet Spectrophtometry |
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| LI Hong-mei,ZHAO Lun.Determination of Nitrate-Nin ,Water by Ultraviolet Spectrophtometry[J].Journal of Changchun Teachers College,2003(2). |
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| Authors: | LI Hong-mei ZHAO Lun |
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| Abstract: | The new method for the determination Nitrate-N was established by ultraviolet spectroph-tometry in weak base medium at pH 8. It was based on strong absorption of Nitrate-N at201. 2nm. The method could avoid disturbing by some ions. Beer'slaw is obeyed in the range of 0~7. Omg/L for Nitrate-N. The recovery of the determination method varied from 99. 1%to100. 1%. Detection limit is 0. 1000mg/L. The method has been applied to the determination of Nitrate-N in water with satisfacto-ry results. |
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| Keywords: | Ultraviolet Spectrophtometry Nitrate-N Nitrogen |
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