| 絮凝沉淀法测定地表水中氨氮的方法改进 |
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| 作者姓名： | 刘琳娟 汤春艳 |
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| 作者单位： | 南通市环境监测中心站 |
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| 摘 要： | 本文通过比较监测黑臭河流氨氮时人员比对的结果,对絮凝沉淀预处理过程的关键因素进行了改进。结果表明,直接在离心管中絮凝沉淀、离心、取样分析,精密度和准确度更好,而且方便快捷,值得推广。
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| 关 键 词： | 氨氮 絮凝沉淀法 离心 |
Improvement of determination method of ammonia nitrogen in surface water by flocculation precipitation |
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| Authors: | Liu Linjuan Tang Chunyan |
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| Institution: | (Nantong Environmental Monitoring Center Station,Nantong Jiangsu 226006,China) |
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| Abstract: | In this paper,the key factors of flocculation pretreatment process are improved by comparing the results of personnel comparison when monitoring ammonia nitrogen in Heizhuang River.The results show that the precision and accuracy of direct precipitation,centrifugation and sampling analysis in centrifugal tubes are better,and it is convenient and fast,and it is worth promoting. |
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| Keywords: | Ammonia nitrogen Flocculation and precipitation Centrifugation |
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