| Polar organic chemical integrative sampler (POCIS) uptake rates for 17 polar pesticides and degradation products: laboratory calibration. | |
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MedLine Citation:
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PMID: 23135754 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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Polar organic chemical integrative samplers (POCIS) are useful for monitoring a wide range of chemicals, including polar pesticides, in water bodies. However, few calibration data are available, which limits the use of these samplers for time-weighted average concentration measurements in an aquatic medium. This work deals with the laboratory calibration of the pharmaceutical configuration of a polar organic chemical integrative sampler (pharm-POCIS) for calculating the sampling rates of 17 polar pesticides (1.15 ≤ logK (ow) ≤ 3.71) commonly found in water. The experiment, conducted for 21 days in a continuous water flow-through exposure system, showed an integrative accumulation of all studied pesticides for 15 days. Three compounds (metalaxyl, azoxystrobine, and terbuthylazine) remained integrative for the 21-day experiment. The sampling rates measured ranged from 67.9 to 279 mL day(-1) and increased with the hydrophobicity of the pesticides until reaching a plateau where no significant variation in sampling rate is observed when increasing the hydrophobicity. |
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Authors:
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Imtiaz Ibrahim; Anne Togola; Catherine Gonzalez |
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Publication Detail:
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Type: JOURNAL ARTICLE Date: 2012-11-8 |
Journal Detail:
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Title: Environmental science and pollution research international Volume: - ISSN: 1614-7499 ISO Abbreviation: Environ Sci Pollut Res Int Publication Date: 2012 Nov |
Date Detail:
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Created Date: 2012-11-8 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9441769 Medline TA: Environ Sci Pollut Res Int Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Laboratory Division, Bureau de recherche géologiques et minières (BRGM), 3 avenue Claude Guillemin, 45100, Orléans, France, i.imtiaz@mines-ales.fr. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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