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  • Title: Evaluation of four capillary columns for the analysis of organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers in human serum for epidemiologic studies.
    Author: Rogers E, Petreas M, Park JS, Zhao G, Charles MJ.
    Journal: J Chromatogr B Analyt Technol Biomed Life Sci; 2004 Dec 25; 813(1-2):269-85. PubMed ID: 15556543.
    Abstract:
    The separation of organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ether (PBDE) congeners was evaluated on four capillary columns: 60 m x 0.25 mm i.d., 0.25 microm film thickness RTX-5MS and DB-XLB capillary columns, and 60 m x 0.18 mm i.d., 0.25 microm film thickness DB-XLB and DB-5MS capillary columns. Based on performance, capacity, and cost, the RTX-5MS (60 m x 0.25 mm i.d., 0.25 microm thickness) and the DB-XLB (60 m x 0.25 mm i.d., 0.25 microm film thickness) were selected for the analysis of human serum extracts by using gas chromatography/electron-capture detection. In contrast to previous studies, the oven temperature program affords the separation of congeners that are not separated by using other combinations of capillary columns, most notably PBDE-47 and PCB 180. In addition, the method enables determination of OCPs, PCBs, and PBDEs prevalent in a single extract of serum, which can lead to considerable time savings in the analysis of large number of samples collected for epidemiologic studies.
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