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Microchimica Acta

, Volume 103, Issue 3–4, pp 171–179 | Cite as

Spectrofluorimetric determination of carbaryl and 1-naphthol in micellar media

  • Juan H. Ayala
  • Ana M. Afonso
  • Venerando González
Article

Abstract

The interaction of 1-naphthol-N-methyl-carbamate (carbaryl) and its degradation product, 1-naphthol, with the surfactant hexadecyl-trimethylammonium bromide has been studied. The micellar medium allows the direct spectrofluorimetric determination of carbaryl, with 6.2 ng/ml as detection limit in acidic medium, or indirectly, after hydrolysis, as 1-naphthol at pH 11.0 or pH 3.0 with detection limits of 0.4 and 1.6 ng/ml, respectively. The recoveries of carbaryl and 1-naphthol from natural waters are acceptable.

Key words

carbaryl 1-naphthol micellar spectrofluorimetry natural waters 

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Copyright information

© Springer-Verlag 1991

Authors and Affiliations

  • Juan H. Ayala
    • 1
  • Ana M. Afonso
    • 1
  • Venerando González
    • 1
  1. 1.Department of Analytical ChemistryUniversity of La LagunaLa LagunaSpain

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