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固相萃取-气相色谱法测定饮用水中甲基汞
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.
作者姓名:刘保献  李新中  常淼  邹本东  华蕾
作者单位:北京市环境保护监测中心,北京,100048
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...

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
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.
Authors:LIU Bao  xian
Institution:LIU Bao-xian,LI Xin-zhong,CHANG Miao,ZOU Ben-dong,HUA Lei(Beijing Environmental Monitoring Center,Beijing 100048,China)
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 ...
Keywords:Methylmercury  Sulfhydryl cotton  Solid phase extraction  Gas chromatography  Drinking water  
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