Rapid Thin-layer Chromatographic Screening for Parathion in Canned Peaches Without Cleanup

  • Daniel E. Ott
  • Fred E. Hearth
  • Francis A. Gunther

Abstract

The extensive use of parathion as an insecticide on commercially grown peaches in California has created a need for a rapid screening method for the insecticide in the marketable crop. Using the method of KOVACS (1), with only slight modifications with respect to activation time of thin-layer chromatography (TLC) plates and the use of a simplified developing tank, concentrates of extractives of commercially canned peaches in methylene chloride stripping solution may be chromatographed and subjected to a series of chromogenic spray reactions to yield in about one hour qualitative and semi-quantitative information in the range 0.5 to 11 p.p.m. of residual parathion.

Keywords

Ethyl Acetone Steam Hexane Syringe 

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References

  1. (1).
    M. F. KOVACS JR., J. Assoc. Official Agr. Chemists 47, 1097 (1964).Google Scholar
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    F. A. GUNTHER and R. C. BLINN, “Analysis of Insecticides and Acaricides,” pp. 231–3 (1955), Interscience-Wiley, New York. Paper No., University of California Citrus Research Center and Agricultural Experiment Station, Riverside, California.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1966

Authors and Affiliations

  • Daniel E. Ott
    • 1
  • Fred E. Hearth
    • 1
  • Francis A. Gunther
    • 1
  1. 1.Department of EntomologyUniversity of CaliforniaRiversideUSA

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