Determination of 20 Polychlorinated Biphenyls in Cod Fish by Isotope Dilution GC/HRMS

TANG Hua; CHEN Da-zhou; WU Xue; XU Rui-feng; WANG Tan

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Journal of Chinese Mass Spectrometry Society > 2008 > 29(增刊): 29-30.

TANG Hua, CHEN Da-zhou, WU Xue, XU Rui-feng, WANG Tan. Determination of 20 Polychlorinated Biphenyls in Cod Fish by Isotope Dilution GC/HRMS[J]. Journal of Chinese Mass Spectrometry Society, 2008, 29(增刊): 29-30.

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Determination of 20 Polychlorinated Biphenyls in Cod Fish by Isotope Dilution GC/HRMS

1.
National Institute of Metrology, Beijing 100013, China
2.
Beijing Center for Physical and Chemical Analysis, Beijing 100089, China

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Corresponding author:
TANG Hua
Received Date: December 31, 1899
Revised Date: December 31, 1899

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An Isotope Dilution mass spectrometry (IDMS) method for determination of 20 polycychlorinated Biphenyls (PCBs) in cod fish has been established. 20 PCBs were extracted by Aceton/Hexan (1/1) soxhlet extraction under 70 ℃. An gel permeation chromatography (GPC) and solid phase extraction (SPE) were used for cleaning up the extract. 20 PCBs were quantified by HRMS-MID, single point method. The recovery was in the rang 92%-105%. The detection limit of 20 PCBs was 8.9-9.4 ng•g^－1. The RSD (n＝6) ranged from 2.9%-4.6%.

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Determination of 20 Polychlorinated Biphenyls in Cod Fish by Isotope Dilution GC/HRMS

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