水中佳乐麝香的固相微萃取-气质联机测定方法

The Determination of Galaxolide in Water Samples by Using SPME-GC-MS

采用聚二甲基硅氧烷膜厚100μm的纤维萃取设备,阐述了测定水中HHCB的固相微萃取-气质联机的检测方法。研究发现,对于水中的HHCB来说,温度控制在35℃,萃取时间为40 min,pH值为7.0,可实现HHCB的有效萃取,水中的离子对萃取效率的干扰较小。使用该方法测得上海龙华污水厂原水中HHCB浓度为286 ng/L,虹口区泗塘河水中HHCB浓度低于检测下限。

This paper described a solid -phase microextraction gas -chromatography mass spectrometric procedure for the determination of galaxolide （HHCB） in water samples with 100 μm PDMS coated fiber. The test results showed that the optimum conditions for HHCB extraction was the temperature at 35℃, extraction time 40mins and pH = 7.0. The method were applied to the municipal sewage and river water, respectively and found the content of HHCB in the municipal sewage is 286 ng/L, while that in river water below the quantification limit of this method.