Pressurized Liquid Extraction of Organochlorine Pesticides from Certified Solid Materials
نویسندگان
چکیده
منابع مشابه
determination of organochlorine pesticides in river waters by gc-ecd after solid phase extraction, mazandaran
introduction several hundred pesticides of different chemical compositions are currently used for agricultural and vector control purposes all over the world. because of their extensive use, they are detected in various environmental matrices, such as soil, water, and air. due to their lipophilic nature, hydrophobicity, and low chemical and biological degradation rates, organochlorine pesticide...
متن کاملSolid-phase extraction method for the quantitative analysis of organochlorine pesticides in wildlife urine.
A gas chromatographic method for the analysis of nine organochlorine pesticides in wildlife urine is described. Reversed-phase solid-phase extraction is utilized to extract the organochlorine pesticides from urine. The pesticides are recovered by elution with hexane-ethyl ether (1:1) and quantified by gas chromatography with electron-capture detection. Method detection limits range from 1.4 to ...
متن کاملsolid phase extraction of organochlorine pesticides residues in groundwater (akkar plain, north lebanon)
due to the uncensored use of pesticides in the agricultural regions of lebanon, the contaminationrisks of drinking water by organic residues increase periodically in planting seasons. no previous work havebeen considered in north lebanon plain concerning pesticide pollution though it is the second agriculturalzone in lebanon with an excessive activity. in this context, the aim of this study was...
متن کاملEvaluation of a fibrous cellulose drying agent in supercritical fluid extraction and pressurized liquid extraction of diverse pesticides.
A fibrous cellulose powder (CF-1) was investigated as a drying agent for supercritical fluid extraction (SFE) and pressurized liquid extraction (PLE), also known as accelerated solvent extraction. Analysis of fifty-eight diverse pesticides was performed using gas chromatography-ion-trap mass spectrometric detection (GC-ITD). Extraction efficiencies were correlated versus pesticide polarity with...
متن کاملOrganochlorine pesticides in gallstones.
A method is described for the determination of organochlorine pesticide residues in human gallstones. The difficulty caused by the presence of large amounts of cholesterol in the stones is overcome by an acetylation step in the “clean-up” procedure, and the method finishes with identification and determination of the individual pesticides by gas-liquid chromatography. Results are given for 28 s...
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ژورنال
عنوان ژورنال: Journal of Chromatographic Science
سال: 2007
ISSN: 0021-9665,1945-239X
DOI: 10.1093/chromsci/45.7.369