静态顶空-毛细管柱气相色谱法检测水中甲基叔丁基醚

Determination of methyl tertiary butyl ether in water by static state headspace capillary column gas chromatography

目的：建立适用于水中甲基叔丁基醚的静态顶空气相色谱测定方法。方法：采用静态顶空极性毛细管柱气相色谱法测定水中甲基叔丁基醚。结果：在所建立的实验条件下水中甲基叔丁基醚的检出限为0.0163μg/L,线性范围为0.0156～120 mg/L,其相关系数r=0.9997,样品的加标回收率为92.6%～100.1%,相对标准偏差（RSD）低于1.1%。结论：此方法能够用于分析水中甲基叔丁基醚。

Objective：To establish a method for determination of methyl tert-butyl ether（MTBE） in water by static state headspace gas chromatography.Methods：Static state headspace gas chromatography was used to determine MTBE in water.MTBE was separated by ploar capillary column.Results：The detection limit of MTBE in water was 0.0163 μg/L,the linear range 0.0156～120 mg/L.The coefficient of correlation was 0.9997,recoveries 92.6%～100.1% and RSD less than 1.1%.Conclusion：The method is suitable for analyzing MTBE in water.