Organochlorine insecticide residues present in raw milk sold in the Department Córdoba, Colombia
In this investigation organochlorine pesticide residues in raw milk from Dairy herds in the Cordoba department were determined. During the extraction procedure using a column of diatomaceous earth as eluting system a mixture of n-hexane-acetone-ethyl acetate (4:2:1), followed by 5% methanol in hexane. For the determination we used a gas Chromatograph Perkin Elmer, Autosystem XL with elec- tron capture detector, split less injection mode, a capillary column Rtx-5 30m, 0.25 mm id and 0.25 um film t>ickness. B>e recovery rate for certain pesticides were 7etween 88.5 and 96%, t>e detection limits were defined 7etween 0.01 and 0.04 ng/g, relative standard deviations less t>an 6%. Nn t>e 6+ samples tested p, p’-DDT, a-HCH, ö-HCH, aldrin, dieldrin, endrin, heptachlor, heptachlor epoxide and y-c>lordane were determined, esta7lis>ing concentrations 7etween 2;.1 and 469.6 ng/g. B>e freOuen- cies of occurrence ranged between 1.6 and 65.1% for heptachlor and p, p’-DDT, respectively. The older population that lives in the sub-regions: Middle Sinú, San Jorge and Savannas were exposed to high health risk associated with the concentration of a-HCH, aldrin and dieldrin in raw milk
| Main Authors: | , , |
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| Format: | Digital revista |
| Language: | spa eng |
| Published: |
Universidad Nacional de Colombia - Sede Palmira
2012
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| Online Access: | https://revistas.unal.edu.co/index.php/acta_agronomica/article/view/32453 |
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