Electrochemical determination of 5-dodecylsalicylaldoxime and 2′-hydroxy-5′-nonylacetophenone oxime in commercial extractants

• Main Authors: Elizalde María P., Rúa Sol Del María, Huebra Marta, Menoyo Begoña
• Format: Article
• Language: English
• Published: Serbian Chemical Society 2017-01-01
• Series: Journal of the Serbian Chemical Society
• Subjects: voltammetry; hydroxyoxime-based extractants; factorial design
• Online Access: http://www.doiserbia.nb.rs/img/doi/0352-5139/2017/0352-51391700005E.pdf
• ISSN: 0352-5139; 1820-7421

A differential pulse voltammetric method using a hanging mercury drop electrode (HMDE) was optimized for the determination of 5-dodecylsalicylaldoxime in hydro-alcoholic solutions using factorial and central composite designs. The Taguchi design methodology was used to extend the formerly optimized method to the determination of 2′-hydroxy-5′-nonylacetophenone oxime. The method was successfully applied to quantify 5-dodecylsalicylaldoxime and 2′-hydroxy-5′-nonylacetophenone oxime in samples of commercial extractants over the concentration range 0.05–2.45 and 0.07–0.82 mg L-1, respectively, with detection limits of 0.034 and 0.019 mg L-1, respectively.