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The Routine Analysis of Some Specific Isomers of Polychlorinated Biphenyl Congeners in Human Milk

The Routine Analysis of Some Specific Isomers of Polychlorinated Biphenyl Congeners in Human Milk

J Mes, D Turton, D Davies, W F Sun, P Y Lau, D Weber

Int J Environ Anal Chem. 1987;28(3):197-205.

PMID: 3104221

Abstract:

A mixture of 14 polychlorinated biphenyl (PCB) isomers of various congeners, representing approximately 70% of all human milk PCBs reported in the literature, was made up to identify and approximate their residues in human milk. Individual isomer levels varied from 5 to 103 nanograms per gram of milkfat with the 2,2',4,4',5,5'-hexachlorobiphenyl isomer as the major PCB contaminant of human milk. PCB isomer numbers 74, 118, 153, 138 and 180 made up approximately 75% of all PCBs as measured by this mixture. There was close agreement of total PCB isomer content in breast milk between electron capture gas chromatography and gas chromatographic mass spectrometry determinations. A major interference was encountered however for PCB isomer no. 52, whose residue level in the breast milk was approximately 3 X higher by gas liquid chromatography than by mass spectrometry.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP35693993-A	PCB No 52		35693-99-3	Price

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