饮用水和地下水中环氧氯丙烷的快速测定——气相色谱/质谱法

Modern Scientific Instruments(2014)

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Abstract
建立了液~液萃取·气相色谱/质谱法测定饮用水和地下水中环氧氯丙烷的方法.用二氯甲烷萃取水样中环氧氯丙烷浓缩定容后,经色谱分离质谱采用选择离子(SIM)模式进行检测.水样中环氧氯丙烷得最低检测限可达到0.08μg/L.浓度在0.02μg/mL-0.32 μg/mL时标准曲线的线性相关系数r=0.9991.在三个添加水平的回收率测定(n=5),其回收率在78%~86.76%之间.相对标准偏差为6.4%-12.2%.
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