González-Barros S T, Simal Lozano J, Lage Yusty M A, Alvarez Piñeiro M E
Departamento Química Analítica, Nutrición y Bromatología, Facultad de Farmacia, Universidad de Santiago de Compostela, La Coruña, Spain.
J Chromatogr Sci. 1998 May;36(5):263-8. doi: 10.1093/chromsci/36.5.263.
Certain congeners of Aroclor 1260 coelute with o,p'-or p,p'-DDT under gas chromatography with electron-capture detection. We describe a simple ultraviolet irradiation method that allows qualitative and quantitative analyses of mixtures of these organochlorides in complex matrices. Detection limits are 0.20 and 0.22 microgram/kg dry mass for Aroclor 1260 and the two DDTs, respectively. The method is applied to six replicate pork liver samples, for which recoveries ranged from 72 to 90%.
