| 主次波长分光光度法测定水中氨氮 |
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| 引用本文： | 郜洪文. 主次波长分光光度法测定水中氨氮[J]. 环境科学, 1993, 14(2): 82-84 |
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| 作者姓名： | 郜洪文 |
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| 作者单位： | 安徽省淮北市环境保护监测站 淮北 |
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| 摘 要： | 在碱性介质中,氨与Nessler试剂反应生成黄色化合物.用依据悬浮颗粒对光吸收原理建立显色反应的主次双波长光度测定氨氮(NH_3-N)新方法.方法检出限0.02mg/L,精密度RSD<2％,加标回收率93％-105％,且计算曲线稳定,适合于天然水、废水等环境水质监测.
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| 关 键 词： | 分光光度法 氨氮 水质监测 |
| 收稿时间： | 1992-09-22 |
Determination of Ammonia-N in Water by Primary-Secondary Wavelength Spectrophotometry |
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| Gao Hongwen. Determination of Ammonia-N in Water by Primary-Secondary Wavelength Spectrophotometry[J]. Chinese Journal of Environmental Science, 1993, 14(2): 82-84 |
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| Authors: | Gao Hongwen |
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| Affiliation: | Huaibei Environmental Monitoring Centre, Huaibei 235000 |
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| Abstract: | In alkaline solution NH3-N may react with Ness-ler's agent forming a yellow compound. Based on the light absorption property of the formed suspended particle a new method for determining NH3-N by primary-secondary wavelength spectro-photometry was developed. The detection limit of the method for NH3-N is 0.02 mg/L, RSD<2% and the recovery is 93%-105%. The method is suitable for the determination of NH?N natural water and polluted water. |
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| Keywords: | primary-secondary wavelength spectrophotometry NH3-N. |
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