Studieg on a Calculation Method for Polychlorinated Biphenyl (PCB) Isomers

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概要

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• Gas chromatographic peaks of four kinds of Kanechlor (KC 300, 400, 500, & 600) were separated by OV-1 column with use of a flame ionization detector (FID), of which chlorine numbers were analyzed, respectively, by GC-Mass spectrometry.<BR>It has been certified that there is a good relation between chlorine numbers in fourteen kinds of technical PCBs and gas chromatographic (FID) peak areas.<BR>Consequently, those peak contents of four kinds of Kanechlor Products were quantified, respectively.<BR>It has been confirmed that those peaks in the same retention time on four gas chromatograms (KC-300, 400, 500, & 600) have almost negligible difference in chlorine numbers.<BR>Then, a mixture containing exactly the same amount of KC-300, 400, 500, & 600, was prepared as a standard whose gas chromatographic peaks had been quantitative.<BR>This specific standard enables the quantitative analysis of total PCB contents within±10% accuracy from the theoretical value, compared with these obtained from gas chromatographic measurements of thirty-five combinations of four kinds of Kanechlors (KC-300, 400, 500, & 600) by use of an electron capture detector (ECD).<BR>This standard works for eliminating individual human errors which may be encountered with the pattern-combination method, as well as does for shortening the analysis time.<BR>In addition, it has another feature of obtaining extra more informations, as PCBs composition-ratio could be clarified according to chlorine numbers.

• 公益社団法人 日本食品衛生学会の論文

公益社団法人 日本食品衛生学会 | 論文

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