| 固相萃取-气相色谱法测定饮用水中甲基汞 |
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| 引用本文： | 刘保献,李新中,常淼,邹本东,华蕾. 固相萃取-气相色谱法测定饮用水中甲基汞[J]. 环境监测管理与技术, 2011, 23(1): 54-56 |
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| 作者姓名： | 刘保献 李新中 常淼 邹本东 华蕾 |
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| 作者单位： | 北京市环境保护监测中心,北京,100048 |
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| 摘 要： | 根据巯基棉在一定酸性条件下能定量吸附甲基汞的原理,利用多通道并联的固相萃取装置,采用气相色谱(ECD)方法测定饮用水中痕量甲基汞,考察了水样pH值对回收率的影响.方法在0.050 mg/L～1.00 mg/L范围内线性良好,当采样体积为1.0 L时,检出限为0.03 ng/L,标准样品与实际水样平行测定的相对标准偏差均...
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| 关 键 词： | 甲基汞 巯基棉 固相萃取 气相色谱法 饮用水 |
Determ ination ofM ethylmercuryin DrinkingW ater by Gas Chromatography with Solid Phase Extraction |
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| LIU Bao xian. Determ ination ofM ethylmercuryin DrinkingW ater by Gas Chromatography with Solid Phase Extraction[J]. The Administration and Technique of Environmental Monitoring, 2011, 23(1): 54-56 |
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| Authors: | LIU Bao xian |
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| Affiliation: | LIU Bao-xian,LI Xin-zhong,CHANG Miao,ZOU Ben-dong,HUA Lei(Beijing Environmental Monitoring Center,Beijing 100048,China) |
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| Abstract: | Adsorbed by sulfhydryl cotton in acidic solution,methylmercury in drinking water was determined by gas chromatograph with ECD.The solid phase extraction was performed by using a multi-channel paralleling device and influence of pH value in water samples on recovery was observed.It was found that good linearity of method obtained in range from 0.050 mg/L to 1.00 mg/L,detection limits 0.03 ng/L at sample volume 1.0 L,RSD of standard and parallel samples <5.0%,spiked recoveries >80%.Some suggestions were made ... |
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| Keywords: | Methylmercury Sulfhydryl cotton Solid phase extraction Gas chromatography Drinking water |
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