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dc.contributor.authorLee, Stephen.en_US
dc.date.accessioned2009-07-09T18:43:09Z
dc.date.available2009-07-09T18:43:09Z
dc.date.issued1977-07-09T18:43:09Z
dc.identifier.urihttp://hdl.handle.net/10464/2081
dc.description.abstractOx 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.isoengen_US
dc.publisherBrock Universityen_US
dc.subjectInsecticides.en_US
dc.subjectNematocides.en_US
dc.subjectOxamyl.en_US
dc.subjectGas chromatography.en_US
dc.titleStudies on the insecticide - nematicide-oxamyl and its quantitative determination by gas chromatographic methoden_US
dc.typeElectronic Thesis or Dissertationen_US
dc.degree.nameM.Sc. Chemistryen_US
dc.degree.levelMastersen_US
dc.contributor.departmentDepartment of Chemistryen_US
dc.degree.disciplineFaculty of Mathematics and Scienceen_US


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