دورية أكاديمية
GC-MS fragmentation patterns of sprayed endosulfan and its sulphate metabolite in samples of Theobroma cacao L from a field kinetic study.
| العنوان: | GC-MS fragmentation patterns of sprayed endosulfan and its sulphate metabolite in samples of Theobroma cacao L from a field kinetic study. |
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| المؤلفون: | Vaikosen EN; 1 Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria.; 2 Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK.; 3 Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmacy, Niger Delta University, Wilberforce Island, Nigeria., Gibson LT; 2 Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK., Davidson CM; 2 Department of Pure and Applied Chemistry, University of Strathclyde, Glasgow, UK., Olu-Owolabi BI; 1 Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria., Adebowale K; 1 Department of Chemistry, Faculty of Science, University of Ibadan, Ibadan, Nigeria., Ebeshi BU; 3 Department of Pharmaceutical and Medicinal Chemistry, Faculty of Pharmacy, Niger Delta University, Wilberforce Island, Nigeria., Diagboya PN; 4 Department of Chemistry, Vaal University of Technology, Vanderbiljpark, South Africa. |
| المصدر: | European journal of mass spectrometry (Chichester, England) [Eur J Mass Spectrom (Chichester)] 2019 Aug; Vol. 25 (4), pp. 362-371. Date of Electronic Publication: 2018 Dec 18. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: SAGE Publishing Country of Publication: England NLM ID: 101124748 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1751-6838 (Electronic) Linking ISSN: 14690667 NLM ISO Abbreviation: Eur J Mass Spectrom (Chichester) Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: 2017- : London, U.K. : SAGE Publishing Original Publication: Chichester, West Sussex, U.K. : IM Publications, c2000- |
| مستخلص: | Most environmental analytical methods for the determination of organochlorine pesticides (OCPs) are multi-residual with other organic compounds co-extracted and co-eluted. This has been observed in GC spectra using classical detectors like electron-capture detector (ECD) even after appropriate clean-up. This limitation could be resolved by using GC-MS methods which are more specific and selective. Thus, a commercial-grade endosulfan treated Theobroma cacao plantation was sampled. Representative samples comprising leaves, stem bark and pulp were obtained between 0.5 h and 60 days after treatment. Samples were analyzed for residual parent endosulfan ( α- and β -isomers) as well as the metabolite endosulfan sulphate using an ion trap GC-MS. The retention times and chromatogram peaks obtained for various endosulfan were identified and compared with reference standards, and confirmed with National Institute of Standards and Technology library. Results showed that the molecular ion at m/z 407 was exhibited by α- and β- endosulfan, representing the parent molecular ion M +• ([C |
| فهرسة مساهمة: | Keywords: ; Parent isomers; carbene carbocation; co-elution; co-extraction; dichlorobenzene; lactone; precursor molecular ions |
| تواريخ الأحداث: | Date Created: 20181219 Latest Revision: 20190712 |
| رمز التحديث: | 20231215 |
| DOI: | 10.1177/1469066718817690 |
| PMID: | 30558457 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1751-6838 |
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| DOI: | 10.1177/1469066718817690 |