Spectrophotometric determination of 1-naphthol in drinking waters from eastern Black Sea region

Demirbas A.

DEUTSCHE LEBENSMITTEL-RUNDSCHAU, vol.95, no.12, pp.505-507, 1999 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 95 Issue: 12
  • Publication Date: 1999
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.505-507
  • Karadeniz Technical University Affiliated: No


A spectrophotometric method for the determination of 1-naphthol in drinking water samples is described. The method is based on the coupling of 1-naphthol obtained from hydrolyzing of carbaryl with diazotized sulphanilic acid in an alkaline medium. Beer's law is obeyed in the range of 0.01-0.1 ppm of 1-naphthol. The proposed method is sensitive and rapid. Average 1-naphthol content of the drinking water samples was 9.05. The samples were obtained from their sources during one day after about 24 hours than rain.