Determination of 39 Polybrominated Diphenyl Ethers in Coastal Sediments by Ultrasonic Extraction Coupled with Gas Chromatography-Mass Spectrometry
- VernacularTitle:超声萃取-气相色谱-质谱联用测定海洋沉积物中39种多溴联苯醚残留
- Author:
Jinhua JIANG
;
Tao CHEN
- Publication Type:Journal Article
- Keywords:
Coastal sediments;
polybrominated diphenyl ethers;
ultrasonic extraction;
gas chromatography/ mass spectrometry
- From:
Chinese Journal of Analytical Chemistry
2009;37(11):1627-1632
- CountryChina
- Language:Chinese
-
Abstract:
A method was developed for the determination of 39 polybrominated diphenyl ethers(PBDEs) from mono- to hepta-brominated in coastal sediment by gas chromatography/mass spectrometry. The sample was extracted with a solution of dichloromethane: n-hexane( 1:1,V/V) ,followed by ultrasonic extraction for 60 min at 25℃. The clean-up step was optimized using silica gel and alumina. The detection limit of the method was in the range of 0.003 - 0.10μg/kg. The results indicate that the average recovery of the internal standard was from 66.2% to 118. 6%. The relative standard deviation RSD( % ) was from 0. 8 % to 18. 2%. The method for the detection of 39 PBDE congeners in coastal sediment was sensitive,high reproducible with satisfactory recoveries.
