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Updated: May 7, 2026

Extraction of Organochlorine Pesticides from Plastic Pellets and Plastic Type Analysis
Published on: July 1, 2017
Comparison of solvent extraction and solid-phase extraction for the determination of polychlorinated biphenyls in
A N Mahindrakar1, S Chandra, L P Shinde
1New Custom House Laboratory, Ballard Estate, Mumbai 400 001, Maharashtra, India.
Abstract:
Solid-phase extraction (SPE) of nine polychlorinated biphenyls (PCBs) from transformer oil samples was evaluated using octadecyl (CI8)-bonded porous silica. The efficiency of SPE of these PCBs was compared with those obtained by solvent extraction with DMSO and hexane. Average recoveries exceeding 95% for these PCBs were obtained via the SPE method using small cartridges containing 100mg of 40 pm CI8-bonded porous silica. The average recovery by solvent extraction with DMSO and hexane exceeded 83%. It was concluded that the recoveries and precision for the solvent extraction of PCBs were poorer than those for the SPE.
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