| 在线紫外过硫酸盐消解-流动注射分析方法测定水中总氮 |
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| 引用本文： | 黄碧兰,杨敏,刘俩燕. 在线紫外过硫酸盐消解-流动注射分析方法测定水中总氮[J]. 中国卫生检验杂志, 2011, 0(7) |
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| 作者姓名： | 黄碧兰 杨敏 刘俩燕 |
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| 作者单位： | 广东省深圳市龙岗区疾病预防控制中心; |
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| 摘 要： | 目的:研究利用在线紫外过硫酸盐消解-流动注射分析方法测定水中总氮,用于地表水、地下水、生活污水和工业废水中总氮的测定,以实现自动化批量分析。方法:将总氮模块按流路图安装后,接入泵连接相应的溶剂,进行总氮的自动化检测。结果:总氮的检出限是0.018 mg/L,总氮在0 mg/L～10 mg/L范围内线性良好,相关系数在0.999以上,精密度和准确度高,精密度为1.5%,加标回收率在90.5%～106%。结论:建立了在线紫外过硫酸盐消解-流动注射分析方法测定水中总氮的方法,该方法检出限低,准确度和灵敏度高,适合大批量样品的检测。
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| 关 键 词： | 总氮 水质 流动注射法 |
Determination of TN in water by on-line UV persulfate digestion and flow injection analysis |
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| HUANG Bi-lan,YANG Min,LIU Lia-yan. Determination of TN in water by on-line UV persulfate digestion and flow injection analysis[J]. Chinses Journal of Health Laboratory Technology, 2011, 0(7) |
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| Authors: | HUANG Bi-lan YANG Min LIU Lia-yan |
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| Affiliation: | HUANG Bi-lan,YANG Min,LIU Lia-yan(Longgang Center for Disease Control and Prevention,Shenzhen 518172,China) |
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| Abstract: | Objective:To research the determination of TN in water by On-line UV persulfate digestion and flow injection analysis and detect the total nitrogen in surface water,groundwater,sewage and industrial wastewater in order to realize automatic batch analysis.Methods: After total nitrogen module installed by flow circuit diagram,access the pump to connect appropriate solvent for the automated detection of TN.Results: The detection limit of TN by this method was 0.018 mg/L.The linear range of determination of TN ... |
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| Keywords: | Total nitrogen(TN) Water quality Flow injection analysis |
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