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Determination of 42 Persistent Organic Pollutants in Geographical Original Soil of Bamboo Shoot by Gas Chromatography - Tandem Mass Spectrometry with
  • Determination of 42 Persistent Organic Pollutants in Geographical Original Soil of Bamboo Shoot by Gas Chromatography - Tandem Mass Spectrometry with

Determination of 42 Persistent Organic Pollutants in Geographical Original Soil of Bamboo Shoot by Gas Chromatography - Tandem Mass Spectrometry with

Key words: polyaromatic hydrocarbons( PAHs) ; polychlorinated biphenyls( PCBs) ; organochlorine
pesticides( OCPs) ; original soil of bamboo shoot; solid phase extraction; gas chromatography - tandem
mass spectrometry( GC - MS /MS)
Details
Abstract: A method of gas chromatography - tandem mass spectrometry( GC - MS /MS) was developed
for the determination of 8 polyaromatic hydrocarbons ( PAHs) ,18 polychlorinated biphenyls ( PCBs) and 16 organochlorine pesticides( OCPs) in geographical original soil of bamboo shoot. The samples were extracted with acetone - hexane( 1 ∶ 1,by volume) in an superpower ultrasonic bath,then purified with a Florisil composite column. The eluant was concentrated by N2 blowing,finally detemined by GC - MS /MS. 42 persistent organic pollutants( POPs) were efficiently separated within 35 min,and there were good linearities for the analytes in the concentration range of 2. 0 - 2 000. 0 μg /L with their correlation coefficients( r2 ) of 0. 995 2 - 0. 999 8. The spiked recoveries ranged from 62. 3% to 128% with relative standard deviations of 0. 5% - 15. 8%,and the limits of detection( S / N = 3) were 0. 070 - 6. 902 μg /kg. With the characteristics of easy operation,high sensitivity and accuracy,the method could be applied in the simultaneous detection of 42 POPs in original soil of
bamboo shoot.