Occurrence of Selected Known or Suspected Endocrine-Disrupting Pesticides in Portuguese Surface Waters Using SPME-GC-IT/MS
نویسندگان
چکیده
A multiresidue analytical methodology based on a solid-phase microextraction (SPME), followed by gas chromatography-ion trap mass spectrometry (GC–IT/MS), has been developed for trace analysis of 20 known or suspected endocrine-disrupting pesticides. The SPME conditions are optimized considering several key parameters to obtain the maximum sensitivity. After optimization, method validation is performed, and limits detection (ranged from 2–150 ng/L) coefficient determination (above 0.990) studied compounds determined all analytes. robust sampling twenty points surface water samples north center Portugal validated applied. In total, four chemical families (13 organochlorine, 1 organophosphorus, 2 dicarboximide, 4 pyrethroids) studied, pesticides most frequently detected eight organochlorine (α-, β-HCHs, lindane, HCB, o,p′-DDT, p,p′-DDE, p,p′-DDD, α-endosulfan), cypermethrin, vinclozolin.
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ژورنال
عنوان ژورنال: Separations
سال: 2021
ISSN: ['2297-8739']
DOI: https://doi.org/10.3390/separations8060081