Determination of Organochlorine Compounds and Polychlorinated Biphenyls in Dry Fish by GC
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Abstract:
A method for determination of organochlorine compounds (OCLs) and polychlorinated biphenyls (PCBs) in dry fish by GC was established. OCLs and PCBs were extracted by automaticity soxhlet extraction, purified by Florsil PR solid phase extraction (SPE) and analyzed by GC-ECD using Mirex as the internal standard on DB-1701 and SPB-1 columns. The results showed that 16 kinds of OCLs and PCBs were separated by GC. Within the linear range of 0.02 mg/kg~0.50 mg/kg, the coefficient of variation for repeatability, relative standard deviation for reproducibility and the detection limit of the method were 0.44%~8.73%, 0.15%~7.90% and 0.03~0.1 g/kg, respectively.
