Advertisement

Gas chromatographic evaluation of some N-derivatives of intact carbaryl

  • E. D. Magallona
  • F. A. Gunther
Article

Abstract

Gas chromatographic (GLC) detection of arylN-methylcarbamates as theN-acetyI-Clx orN-nitroso derivatives of the intact molecule was explored using carbaryl as the model compound. These derivatives were designed for use with the microcoulometric detector for chlorine and the solution conductivity detector for nitrogen but response to the electron capture detector was also studied. GLC characteristics of the derivatives were evaluated in terms of thermal stability and detector response.

N-Trichloracetyl andN-nitroso carbaryl underwent extensive decomposition in the GLC system. Although theN-monochloroacetyl derivatives were also subject to thermal decomposition, they gave sufficient linearity and sensitivity with the microcoulometric detector for analysis at the residue level.N-Acetyl carbaryl was thermally stable and the response of electrolytic conductivity and the electron capture detectors were adequate for residue analysis.

Keywords

Nitrogen Thermal Stability Chlorine Thermal Decomposition Model Compound 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Coulson, D. M.: Electrolytic conductivity detector for gas chromatography. J. Gas Chromatog.3, 134 (1965).Google Scholar
  2. Gaston, L. K.: Gas chromatography using an electron absorption detector. Residue Reviews5, 21 (1964).Google Scholar
  3. Magallona, E. D., F. A. Gunther, and Y. Iwata: Synthesis and spectroscopic characterization of acetyl-Clx=0,1,2 or 3) and nitroso derivatives of carbaryl and three possible metabolites. Arch. Environ. Contamin. Toxicol.5, 177 (1976).Google Scholar
  4. Patchett, G. G.: Evaluation of the electrolytic conductivity detector for residue analysis of nitrogen-containing pesticides. J. Chromatog. Sci.8, 155 (1970).Google Scholar
  5. Williams, I. H.: Carbamate insecticide residues in plant materials determination by gas chromatography. Residue Reviews38, 1 (1971).PubMedGoogle Scholar

Copyright information

© Springer-Verlag New York Inc. 1977

Authors and Affiliations

  • E. D. Magallona
    • 1
    • 2
  • F. A. Gunther
    • 1
    • 2
  1. 1.Department of EntomologyUniversity of the Philippines CollegeLagunaPhilippines
  2. 2.Department of EntomologyUniversity of CaliforniaRiverside

Personalised recommendations