| 固相萃取-毛细管气相色谱法测定水中的甲基汞 |
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| 引用本文： | 颜慧,徐鹂,张海萍,钱玉亭.固相萃取-毛细管气相色谱法测定水中的甲基汞[J].环境科学与管理,2013(3):114-116. |
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| 作者姓名： | 颜慧 徐鹂 张海萍 钱玉亭 |
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| 作者单位： | 江阴市环境监测站,江苏江阴214431 |
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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10．0ug／L～50．0ug／L范围内线性良好，当采样体积为1．0L时，检出限为0．06ng／L，样品平行测定的加标回收率在79．6％-82．8％，相对标准偏差为2．5％。
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| 关 键 词： | 固相萃取 气相色谱 甲基汞 |
Determination of Methyl - mercury in Drinking Water by Gas Chromatography with Solid Phase Extraction |
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| Yan Hui,Xu Li,Zhang Haiping,Qian Yuting.Determination of Methyl - mercury in Drinking Water by Gas Chromatography with Solid Phase Extraction[J].Environmental Science and Management,2013(3):114-116. |
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| Authors: | Yan Hui Xu Li Zhang Haiping Qian Yuting |
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| Institution: | (Jiangyin Environmental Monitoring Station, Jiangyin 214431, China) |
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| Abstract: | Adsorbed by sulfhydryl cotton in acidic solution, methyl - mercury in drinking water was determined by gas chro- matography 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. The method achieved good linearity in the range from 10. 0ug/L to 50. 0ug/L, with detection limits of 0. 06ng/L when sample volume is 1.0 L. The recovery was of parallel samples was between 79.6% and 82. 8%, and RSD of parallel samoles was 2. 5%. |
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| Keywords: | solid phase extraction gas chromatography methyl - mercury |
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