| 极谱法测定痕量亚硝酸根 |
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| 引用本文： | 朱明霞,车文实,姜俊峰. 极谱法测定痕量亚硝酸根[J]. 高师理科学刊, 2001, 21(1): 42-43 |
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| 作者姓名： | 朱明霞 车文实 姜俊峰 |
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| 作者单位： | 黑河师专,化学系,黑龙江,黑河,164300 |
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| 摘 要： | 研究了一种选择性高、准确度和精密度均好的示波极谱法测定痕量亚硝酸根的新体系 此法基于甲基紫与亚硝酸根间发生反应生成的新物质在示波极谱上有新的波峰产生 - 0 75(vs.SCE)处的波高与亚硝酸根的浓度成线性关系 ,检测限为 2 .0× 1 0 - 7g/mL ,用于污水分析 ,结果令人满意
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| 关 键 词： | 示波极谱法 亚硝酸根 甲基紫 |
Determination of trace amounts NO-2 by oscilloscope dolarograplic method |
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| ZHU Ming-xia,CHE Wen-shi,JIANG Jun-feng. Determination of trace amounts NO-2 by oscilloscope dolarograplic method[J]. Journal of Science of Teachers＇College and University, 2001, 21(1): 42-43 |
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| Authors: | ZHU Ming-xia CHE Wen-shi JIANG Jun-feng |
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| Abstract: | A higher sensitivity mothod of oscilloscope polarographic method has been developed for determination of trace amounts of NO- 2 based on the reaction of Methyl Violet and NO- 2.The results demonstrate that the analytical signal which occurs at -0.75 V(vs.SCE)gave a linear interrelation in response to the concentration range of NO- 2The detection limit of the proposed method is 20×10 -7g/mL.This method is used successfully to analysis polluted water. |
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| Keywords: | oscilloscope polarographic method Nitirte Methyl Violet |
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