Copperii-selective electrodes based on 1-furoyl-3,3-diethylthiourea as a neutral carrier

• M. DE LOS A ARADA PÉREZ ^[2] ; SANTIAGO LANDAZURY YANES ^[2] ; M CARDONA ^[2] ; L AGUILERA ^[2] ; M YAZDANI-PEDRAM ^[1]
  1. [1] Universidad de Chile

     Universidad de Chile

     Santiago, Chile

     
  2. [2] Eastern University of Cuba Department of Analytical Chemistry
• Localización: Journal of the Chilean Chemical Society (Boletín de la Sociedad Chilena de Química), ISSN-e 0717-6309, ISSN 0366-1644, Vol. 55, Nº. 3, 2010, págs. 371-373
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • 1-furoyl-3,3-diethylthiourea was used as a novel neutral carrier in ion selective electrode for copperII detection and determination. The Cu2+ selective plasticized polyvinyl chloride (PVC) membrane electrode exhibited reversible potential responses with Nernstian slope of 29.34± 0.6 mV/decade for Cu2+ ions in the concentration range from 1.0x10-7 to 1.0x10-2 mol/dm³ with a practical detection limit (PDL) of 3.84x10-7 and lower limit of linear response (LLLR) of 6.15x10-7 mol/dm³ and alife-time of 20 days. The response time, pH effect and other characteristics of the electrodes were also studied.