吹扫捕集-GC-MS-SIM法测定水中微量甲基叔丁基醚

Determination of trace MTBE in water by purge & trap-GC-MS-SIM

采用吹扫捕集 气相色谱 质谱联用选择离子检测法(GC MS SIM)测定水中微量的甲基叔丁基醚,最低检出质量浓度0.05μg/L,相对标准偏差2.4%,样品的加标回收率在94%～120%之间。

Trace methyl tert-butyl ether(MTBE) in water was determined by using a method of purge & trap-GC-MS-SIM. The results showed that the detection limit of the method was 0.05 μg/L, and the relative standard deviation was 2.4%. The recoveries with standard addition method were 94%～120%.