| Residue formations of phosphorus hydride polymers and phosphorus oxyacids during phosphine gas fumigations of stored products. | |
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MedLine Citation:
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PMID: 16390185 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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With the extent of international usage and the critical role phosphine gas (PH3) plays in commercial pest control, identification of the residual components deposited during fumigation is mandatory. It has been postulated that these infrequent residues are primarily composed of phosphoric acid or reduced forms of phosphoric acid [hypophosphorous acid (H3PO2) and phosphorous acid (H3PO3)], due to the oxidative degradation of phosphine. Using environmental scanning electron microscopy, gas phase Fourier transform infrared spectroscopy, and X-ray fluorescence spectroscopy, the structural elucidation and formation mechanism of the yellow amorphous polyhydric phosphorus polymers (P(x)H(y)) that occur in addition to the lower oxyacids of phosphorus in residues deposited during PH3 fumigations of select tobacco commodities are explored. This research determined that nitric oxide gas (or nitrogen dioxide) initiates residue formation of phosphorus hydride polymers and phosphorus oxyacids during PH3 fumigations of stored products. |
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Authors:
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Jason W Flora; Loran E Byers; Susan E Plunkett; Daryl L Faustini |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of agricultural and food chemistry Volume: 54 ISSN: 0021-8561 ISO Abbreviation: J. Agric. Food Chem. Publication Date: 2006 Jan |
Date Detail:
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Created Date: 2006-01-04 Completed Date: 2006-02-22 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0374755 Medline TA: J Agric Food Chem Country: United States |
Other Details:
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Languages: eng Pagination: 107-11 Citation Subset: IM |
Affiliation:
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Research Center, Philip Morris USA, 4201 Commerce Road, Richmond, Virginia 23234, USA. jason.w.flora@pmusa.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Drug Residues
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analysis Food Preservation / methods* Fumigation Microscopy, Electron Pest Control / methods Phosphines / administration & dosage* Phosphorus Compounds / analysis* Polymers / analysis Spectroscopy, Fourier Transform Infrared Tobacco |
| Chemical | |
Reg. No./Substance:
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0/Phosphines; 0/Phosphorus Compounds; 0/Polymers; 7803-51-2/phosphine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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