| 液-液萃取衍生气相色谱法测定饮用水中卤乙酸 |
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| 引用本文： | 陈小丽,陈敏,梁春霞.液-液萃取衍生气相色谱法测定饮用水中卤乙酸[J].化学分析计量,2010,19(4):66-68. |
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| 作者姓名： | 陈小丽 陈敏 梁春霞 |
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| 作者单位： | 广州铁路疾病预防控制中心,广州,510010 |
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| 摘 要： | 建立了测定饮用水中5种卤乙酸的检测方法。水样经硫酸酸化、叔丁基甲醚萃取、硫酸-甲醇衍生化后,用气相色谱电子捕获检测器测定。5种卤乙酸平均加标回收率为74.5%~104.0%,相对标准偏差为3.1%~11.0%(n=6),最低检出限为0.3~15.3μg/L。该法适用于饮用水中卤乙酸的测定。
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| 关 键 词： | 卤乙酸 饮用水 气相色谱 衍生化 |
DETERMINATION OF HALOACETIC ACIDS IN DRINKING WATER BY LIQUID- LIQUID EXTRACTION, DERIVATIZATION AND GAS CHROMATOGRAPHY |
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| Chen Xiaoli,Chen Min,Liang Chunxia.DETERMINATION OF HALOACETIC ACIDS IN DRINKING WATER BY LIQUID- LIQUID EXTRACTION, DERIVATIZATION AND GAS CHROMATOGRAPHY[J].Chemical Analysis And Meterage,2010,19(4):66-68. |
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| Authors: | Chen Xiaoli Chen Min Liang Chunxia |
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| Institution: | (Guangzhou Railway Center for Disease Control and Prevention, Guangzhou 510010, China) |
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| Abstract: | A method for determination of haloacetic acids（HAAs） in drinking water was established. Drinking water were determined by gas chromatography with electron - capture detection, after acidification with sulfuric acid, extraction with tert -butylmeth- yl ether and derivatization with sulfuric acid and methanol. The average recoveries of haloacetic acids were 74.5% - 104.0%. The relative standard deviation（RSD） was 3.1% - 11.0% （ n = 6 ） and the limit of detection was 0.3 - 15.3 ug/L. The method is suitable for determination of haloacetic acids in drinking water. |
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| Keywords: | haloacetic acid drinking water gas chromatography derivatization |
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