Chemical sensor based on tetradecil ammonium nitrate

• M. DE LOS A ARADA PÉREZ ^[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. 58, Nº. 1, 2013, págs. 1545-1548
• Idioma: inglés
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• Resumen

  • The construction and evaluation of an all-solid-state type electrode selective to nitrate based on poly(vinyl chloride) (PVC) as polymeric membrane, diethyl phthalate as plasticizer and tetradecilammonium nitrate (TDAN) as positively charged ionophore is reported. The constructed electrode showed fast potentiometric response to nitrate in the concentration range from 10-6 to 10-2 mol/dm³ with Nernstian slope of -73.15 ± 0.28 mV/decade, response time of 15 seconds and lifetime of 1 month.