| 双波长导数分光光度法直接、同时检测水中的NO_3~-和NO_2~-含量 |
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| 引用本文： | 杨翔华,赵杉林. 双波长导数分光光度法直接、同时检测水中的NO_3~-和NO_2~-含量[J]. 辽宁石油化工大学学报, 1997, 0(1) |
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| 作者姓名： | 杨翔华 赵杉林 |
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| 作者单位： | 抚顺石油学院应用化学系 |
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| 摘 要： | 提出了一阶导数紫外分光光度法直接、同时测定水中ＮＯ＿３￣－和ＮＯ＿２￣－的方法。ＮＯ＿３￣－和ＮＯ＿２￣－的测定灵敏度较其它同时测定的方法分别提高８～１８倍和９～１２倍，ＮＯ＿３￣－和ＮＯ＿２￣－的最低检出限均为０．０１μｇ／ｍｌ。对合成样品分析，其相对误差＜±２％，交异系数＜３．８％。对河水、湖水、饮用水进行加标回收实验，ＮＯ＿３￣－和ＮＯ＿２￣－的回收率分别为９５．３％～１０１．３％和９７．７％～１０４．２％，与标准方法进行对照分析，ｔ检验结果表明，本方法与标准方法相比无显著性差异。
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| 关 键 词： | 双波长，导数分光光度法，NO＿3￣－，NO＿2￣－ |
^Direct and Simultaneous Determination of Nitrate and Nitrite by Double - Wavelength Derivative Spectrophotometry |
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| Yang Xianghua Zhao Shanlin. ^Direct and Simultaneous Determination of Nitrate and Nitrite by Double - Wavelength Derivative Spectrophotometry[J]. Journal of Liaoning University of Petroleum & Chemical Technology, 1997, 0(1) |
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| Authors: | Yang Xianghua Zhao Shanlin |
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| Abstract: | The method of direct and simultaneous determination of nitrate and nitrie in water is proposed. Dirinking water, lake water, fiver water and synthetic samlpe were determined and the results are satisfactary. The sensitivity of nitrate and nitrite increase 8～18 and 9～12 times than other simutaneous determination method respectively. The detection limits of nitrate and nitrte are all 0.01μg/mL. |
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| Keywords: | Double-wavelength Derivative spectrophometry Nitrate Nitrite |
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