引用本文:陆亮,吴鹏.全自动甲基汞分析仪测定水和废水中甲基汞[J].环境监控与预警,2016,8(6):40-42
LU Liang,WU Peng.Determination of Methyl Mercury in Surface Water and Waste Water Using Fully Automatic Analyzer[J].Environmental Monitoring and Forewarning,2016,8(6):40-42
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全自动甲基汞分析仪测定水和废水中甲基汞
陆亮,吴鹏
南通市环境监测中心站,江苏 南通 226001
摘要:
建立了全自动甲基汞分析仪测定水和废水中甲基汞的方法,对较清洁的地表水和一般废水样品可直接衍生化测定,对基体复杂水样则需蒸馏后再衍生化测定。该法在水样中甲基汞含量为0~1 000 pg范围内线性良好,相关系数r为0.999 7,检出限为0.002 ng/L,标准参考物质测定结果均在参考值范围内,相对标准偏差为1.1%,加标回收率为83.2%~96.6%。该法适用于水及废水中甲基汞的检测。
关键词:  建立了全自动甲基汞分析仪测定水和废水中甲基汞的方法,对较清洁的地表水和一般废水样品可直接衍生化测定,对基体复杂水样则需蒸馏后再衍生化测定。该法在水样中甲基汞含量为0~1 000 pg范围内线性良好,相关系数r为0.999 7,检出限为0.002 ng/L,标准参考物质测定结果均在参考值范围内,相对标准偏差为1.1%,加标回收率为83.2%~96.6%。该法适用于水及废水中甲基汞的检测。
DOI:
分类号:X832
文献标识码:B
基金项目:
Determination of Methyl Mercury in Surface Water and Waste Water Using Fully Automatic Analyzer
LU Liang,WU Peng
Nantong Environmental Monitoring Center,Nantong,Jiangsu 226001,China
Abstract:
This paper sets up a method to determine methyl mercury in surface water and waste water by fully-automatic analyzer. Clean surface water and general waste water can be directly measured after derivatization, while water samples containing complex matrices should be distilled before derivatization and measurement. Standard working curve linearity of methyl mercury was good when the content ranged from 0 to 1 000 pg,with correlation coefficients 0.999 7. The instrument detection limit of methyl mercury could achieve 0.002 ng/L.The determined results of standard references were all in the range of reference values. The relative standard deviation was 1.1%. The recoveries of methyl mercury were 83.2%~96.6%. This method was suitable for the determination of methyl mercury in surface water and waste water.
Key words:  Methyl mercury  Surface water and waste water  Fully-automatic analyzer of methyl mercury