UV-visible spectrophotometry
Clean analytical method for the determination of propoxur

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Abstract

A method has been developed for the determination of propoxur, a carbamate pesticide, by means of its reaction with p-aminophenol (PAP). The method involves the reaction, in the presence of KIO4, between the quinoneimine form of PAP and the deprotonated form of 2-isopropoxyphenol, obtained by the alkaline hydrolysis of propoxur, to provide an indophenol dye which absorbs at 600 nm. The analysis is carried out in a flow system and, after the measurement step, the waste, the reaction product and the unreacted derivatising agent is detoxified in a UV-irradiated coil placed after the measurement flow-cell and after mixing the waste with a TiO2(anatase) catalyst slurry, which can be reutilized several times. The developed methodology is very simple and provides a satisfactory way to avoid toxic waste products by the application of analytical methods.

References (42)

  • D.V. Naidu et al.

    Talanta

    (1990)
  • C.S.P. Sastry et al.

    Talanta

    (1987)
  • K.D. Khalaf et al.

    Anal. Chim. Acta

    (1992)
  • M. Barbeni et al.

    Chromosphere

    (1987)
  • N. Serpone et al.

    J. Photochem.

    (1987)
  • C.K. Gratzel et al.

    J. Mol. Catal.

    (1987)
  • E. Pelizzetti et al.

    Waste Management

    (1990)
  • N. de Bertrand et al.

    Anal. Chim. Acta

    (1991)
  • H. Tsubomura et al.

    Tetrahedron Lett.

    (1965)
  • M. Dore et al.

    Water Res.

    (1978)
  • H. Martin et al.

    Pesticide Manual

    (1977)
  • E. Pramauro

    Los Pesticidas y el Medioambiente

    (1990)
  • C.W. Stanley and J.S. Thorton, J. Agric. Food Chem., 20 (11972)...
  • I. Korsos et al.

    Novenyvedelem

    (1984)
  • A. Ambras et al.

    J. Assoc. Off. Anal. Chem.

    (1981)
  • K.M. Appaiah et al.

    Indian Food Packer

    (1984)
  • J.S. Gerared et al.

    Analyst

    (1988)
  • D. Chaput

    J. Assoc. Off. Anal. Chem.

    (1988)
  • S. Brackhoff et al.

    Z. Lebensm.-Unters. Forsch.

    (1987)
  • H. Haasse-Strey et al.

    Fresenius' Z. Anal. Chem.

    (1984)
  • T. Cairns et al.

    Bull. Environ. Contam. Toxicol.

    (1984)
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