Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1016/j.chemosphere.2007.09.058
Titel (primär) Determination of 10 particle-associated multiclass polar and semi-polar pesticides from small streams using accelerated solvent extraction
Autor Schäfer, R.B.; Mueller, R.; Brack, W.; Wenzel, K.-D.; Streck, G.; Ruck, W.; Liess, M.
Quelle Chemosphere
Erscheinungsjahr 2008
Department WANA; OEKOTOX
Band/Volume 70
Heft 11
Seite von 1952
Seite bis 1960
Sprache englisch
Keywords Pressurized liquid extraction; Suspended particles; Size exclusion chromatography; Deuterated internal standard; Field study; Analysis
Abstract A new analytical method using accelerated solvent extraction was developed for the determination of 10 particle-associated polar and semipolar pesticides. In addition, six deuterated analogues of the target compounds were evaluated as internal standards. The method yielded acceptable accuracy (73-103% recovery) and precision (<25% relative standard deviation) for eight compounds. Using size exclusion chromatography (SEC) as cleanup step resulted in higher recoveries compared to solid phase extraction (SPE) cleanup. Deuterated standards with 10 or more deuterium atoms performed well as internal standards concerning similar recovery and correlation with the target analytes. The method was employed to extract particle-associated pesticides from 16 streams located in an area with intense agriculture in France. Acetochlor, pirimicarb, tebuconazole, fenpropidin, a-endosulfan and chlorfenvinphos were detected at concentrations up to 1 mg kg-1 dry weight. A comparison with aquatic toxicity data indicated potential risk to the benthic fauna exposed to these concentrations of pirimicarb, a-endosulfan and chlorfenvinphos. We suggest that the method presented here be used for the extraction and quantitation of particle-associated polar pesticides.
dauerhafte UFZ-Verlinkung https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=1397
Schäfer, R.B., Mueller, R., Brack, W., Wenzel, K.-D., Streck, G., Ruck, W., Liess, M. (2008):
Determination of 10 particle-associated multiclass polar and semi-polar pesticides from small streams using accelerated solvent extraction
Chemosphere 70 (11), 1952 - 1960 10.1016/j.chemosphere.2007.09.058