Wang DC, Yu P, Zhang Y, Cui Y, Sun CH. The determination of persistent organic pollutants (POPs) in the colostrums of women in preterm labor.
Clin Chim Acta 2008;
397:18-21. [PMID:
18694742 DOI:
10.1016/j.cca.2008.07.004]
[Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2008] [Revised: 06/19/2008] [Accepted: 07/07/2008] [Indexed: 11/28/2022]
Abstract
BACKGROUND
Human milk not only contains nutrients and antibodies, but also can be used as an indicator for levels of organic pollutants in human bodies. We developed a method for determining persistent organic pollutants (POPs) in the colostrum of women in preterm labor, the POPs of 36 colostrum samples have been examined.
METHODS
Thirty-six samples of colostrum from preterm women were extracted by acetone-acetonitrile, enriched and purified by solid-phase Florisil columns. The purified POPs were further separated by the capillary columns, and detected by the gas chromatography-electron capture detection (GC-ECD).
RESULTS
The average recovery rates of 6 types of organochlorine-based pesticides were 80.2%-112.1%, which represent the first 3 categories of the 12 species of POPs. The precise quantities detected were 3.85%-9.32% (the limits of detection were 0.03 microg/l to 0.08 microg/l), and the linear correlation coefficients were >or=0.9969. Of the 36 women tested, 10 (27.8%) were found to have colostrums containing traces of dichloro-diphenyl-trichloroethane (DDT), and 2 (5.56%) were tested positive for dieldrin.
CONCLUSIONS
The combination of using GC-ECD proved to be both accurate and reliable, and this process proved to be both simple and time-effective. This method is applicable for determining the levels of POPs in organisms.
Collapse