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Polychlorinated biphenyls (PCBs) and chloroorganic insecticides interfere with gas chromatographic analysis, thereby complicating their quantitative determination when multiple compounds are assayed. Perchlorination of the standards of the chlorinated compounds was used to simplify quantitative determination of these contaminants. Results indicate that perchlorination converts PCBs to a single compound (decachlorobiphenyl – DCB) that does not interfere with the assay for chloroorganic insecticides. These data confirm that perchlorination allows for simultaneous testing of both PCBs and chloroorganic insecticides during chromatographic analysis.
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http:/www.ejpau.media.pl/volume9/issue1/art-21.html
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Bibliografia
- Adamczyk E. 1979. Stanoveni kontaminace potravin polychlorovanymi defenyli po transformace na dekachlorobiphenyl. [Pollution determinantion of food by PCB after transformation to dekachlorobiphenyl] In: Buletin XII Lenfeldowy a Hoklowy dny. 1-5 [in Czech].
- Ballschmiter K., Zell M. 1980 Analysis of Polychlorinated Biphenyls (PCB) by Glass Capillary Gas Chromatography. Fresenius Zeitschrift für Analytik Chemie Band 302, 20-31.
- Von Beck H., Mathar W. 1985. Analysenverfahren zur Bestimmung von ausgewählten PCB-Einzelkomponenten in Lebensmitteln. [Analytical procedure for determination chosen individual PCB components in food] Bundesgesundhbl. 28(1), 1-12 [in German].
- Berg O. V., Diosady P.L. 1972. Column chromatographic separation of polychlorinated biphenyls from chlorinated hydrocarbon pesticides and their subsequent gas chromatographic quantitation in term of derivatives. Bulletin of Environmental Contamination and Toxicology. 7, 338.
- Boese, B.L., Lee, H. II., Echols, S. 1997. Evaluation of a first-order model for the prediction of the bioaccumulation of PCBs and DDT from sediment into the marine deposit-feeding clam Macoma nasuta. Environmental toxicology and chemistry. 16(7), 1545-1553.
- Ernst G. F.: 1973. Voorloping werkvoorschrift. Hat quantitatief bepalen van PCB’s in vetrijke monsters. [Operating leaflet. Quantitative determinatin of PCB pollution in chosen samples] Utrecht (Not published) [in Dutch]
- Jafvert, C.T., Hoof, P.L., van Chu, W. 1995. The phase distribution of polychlorobiphenyl congeners in surfactant-amended sediment slurries. Water Research. 29(10), 2387-2397.
- Maier-Bode H. 1959. Die Bestimmung von DDT in fethaltigen Materialien. [Determination of DDT in fat containing materials] Archives für Toxikologie [in German]. 17. 387.
- Mattson A. M., J.T. Spillane, C. Baker, G.W. Pearce. 1953. Determination of DDT and related substances in human fat. Analytical Chemistry. 25, 1065-1670.
- Sanchez-Pardo, J., Rovira, J. 1985. Aliphatic hydrocarbons, DDT’s and PCB’s (polychlorobiphenyls), in sediment samples from Catalan and Balearic zones. Investigacion Pesquera. 49(4), 521-536.
- Tuinstra L. G. M. Th., Traag W.A. 1979. Automated glass capillary gas chromatographic analysis of PCB and organochlorine pesticide residues in agricultural products. Journal of High Resolution Chromatography and Chromatography Communications. 2. 723-28.
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Bibliografia
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