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Studies on the insecticide - nematicide-oxamyl and its quantitative determination by gas chromatographic method

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dc.contributor.author Lee, Stephen. en_US
dc.date.accessioned 2009-07-09T18:43:09Z
dc.date.available 2009-07-09T18:43:09Z
dc.date.issued 1977-07-09T18:43:09Z
dc.identifier.uri http://hdl.handle.net/10464/2081
dc.description.abstract Ox amyl , an insecticide/nematicide with the chemical name; methyl ~'. ~·-dimethyl-~-(methylcarbamoyl)oxy-l-thiooxamimidate, and its major degradation compound; oxime or oximino compound, methyl ~',~'-dimethyl-~-hydroxy-l-thiooxamimidate were studied in this work. NMR and mass spectrometry were utilized in the structural studies. An attempt was made to explain the fragmentation patterns of some major peaks in the mass spectra of oxamyl and oxime. A new gas chromatographic method for the detection and determination of submicrogram levels of intact oxamyl using a electron-capture detector was developed. The principle of this method is to produce a derivative which is highly sensitive to an electron-capture detector. The derivative described is dinitrophenyl methylamine( DNPMA ) • Experimental conditions such as pH , reaction temperature , reaction time, the amount of reagent ( Dinitrofluaro benzene) etc. were thoroughly investigated and optimized. This method was successfully applied to the determination of oxamyl residues in tobacco leaves and soil. Throughout this J9D:oject , thin layer chromatography was also used in the separation:and clean up of oxamyl and oxime samples. en_US
dc.language.iso eng en_US
dc.publisher Brock University en_US
dc.subject Insecticides. en_US
dc.subject Nematocides. en_US
dc.subject Oxamyl. en_US
dc.subject Gas chromatography. en_US
dc.title Studies on the insecticide - nematicide-oxamyl and its quantitative determination by gas chromatographic method en_US
dc.type Electronic Thesis or Dissertation en_US
dc.degree.name M.Sc. Chemistry en_US
dc.degree.level Masters en_US
dc.contributor.department Department of Chemistry en_US
dc.degree.discipline Faculty of Mathematics and Science en_US


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