| 连续流动分析法测定地表水中总氮 |
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| 引用本文： | 达莉芳,施玉格.连续流动分析法测定地表水中总氮[J].干旱环境监测,2017,31(1). |
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| 作者姓名： | 达莉芳 施玉格 |
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| 作者单位： | 新疆维吾尔自治区环境监测总站,新疆 乌鲁木齐,830011 |
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| 摘 要： | 采用50 mm流动检测池,建立了连续流动分析法测定地表水中总氮。方法检出限为0.02 mg/L,水样加标回收率为100%~101%,平行样品相对偏差为0.10%~0.27%,精密度(RSD,n=6)为0.72%~1.10%。实验结果表明,该方法准确可靠、灵敏度高、重现性好、分析速度快、操作简便,适用于地表水中总氮的分析。
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| 关 键 词： | 总氮 连续流动分析 地表水 |
Determination of Total Nitrogen in Surface Water by Continuous Flow Analysis Method |
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| DA Li-fang,SHI Yu-ge.Determination of Total Nitrogen in Surface Water by Continuous Flow Analysis Method[J].Arid Environmental Monitoring,2017,31(1). |
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| Authors: | DA Li-fang SHI Yu-ge |
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| Abstract: | A method was developed for detecting total nitrogen in surface water samples by continuous flow analysis which equipping 50 mm flow detection cell.The detect limits of this method is 0.02 mg/L.The recovery rate is ranged from 100% to 101% with precision of 0.72%~1.10% RSD(n=6),and the relative deviation of the parallel samples was 0.10%~0.27%.The results show that the method is sensitive,accurate,reproducible,fast,easy and suitable for the determination of total nitrogen in surface water. |
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| Keywords: | total nitrogen continuous flow analysis surface water |
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