Determination of carbaryl residues in agricultural lands in Trabzon province


Demirbas A.

ENVIRONMENTAL TECHNOLOGY, vol.21, no.3, pp.351-356, 2000 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 21 Issue: 3
  • Publication Date: 2000
  • Doi Number: 10.1080/09593332108618121
  • Title of Journal : ENVIRONMENTAL TECHNOLOGY
  • Page Numbers: pp.351-356

Abstract

A spectrophotometric method for the determination of carbaryl in soil samples is described. The method is based on the coupling of 1-naphthol obtained from hydrolyzing carbaryl with diazotized sulphanilic add in an alkaline medium to form p-(4-hydroxyl-1-naphtylaza) benzenesulphonic acid which has a maximum absorbance at 475 nm. The results of analysed soil samples within a four day period ranged from 4.01 to 63.68 mg kg(-1) 1-naphthol at 0-3 an depths. The proposed method is sensitive and rapid. Average 1-naphthol content of the soil samples was 26.62 ppm.