The purpose of the multiple elutions for the determination of organochlorine pesticides in complex fodder

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Article Title:	The purpose of the multiple elutions for the determination of organochlorine pesticides in complex fodder
Authors:	Adriana Chiş1*, Cornelia Purcărea2 Cristina Horga3
Affiliation:	1 University of Oradea, Faculty of Environment Protection, Oradea, Romania 2 Institute for Public Health Cluj-Napoca, Cluj-Napoca, Romania
Abstract:	This paper presents the results of the determination (qualitative and quantitative) of organochlorine pesticides in complex fodder for nursing cows by gas chromatography. The applied method requires the use of three subsequent elutions with 200 ml ethylic ether/light petroleum each, in variable proportions. The paper analyses the appearance of the compounds in relation with the used eluents in order to identify if this massive consumption of solvent is really necessary. The practical determinations proved that the use of one particular eluent is enough for a specific level of certainty.
Keywords:	fodder, organochlorine pesticides, variable elution
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*Correspondence:	Chiş A. M., University Of Oradea, Department Of Food Control, Environment Protection Faculty, No. 26 Gen, Magheru Bd., Oradea, 410048, Tel +40-744-696943, E-Mail : andichis @yahoo.com