Construction and evaluation of chloride ion-selective electrodes

Authors

  • Dra. C. María de los Ángeles Arada Department of Analytical Chemistry, Universidad de Oriente, Santiago de Cuba
  • Dr. C. Santiago Vicente Luis Department of Inorganic and Organic Chemistry, Jaume I University, Castellón
  • Dra. C. Belén Altava Department of Inorganic and Organic Chemistry, Jaume I University, Castellón
  • Dr. C. Francisco Galindo Department of Inorganic and Organic Chemistry, Jaume I University, Castellón

Abstract

In this paper we report a chloride ion-selective PVC membrane, using bis (2-ethylhexyl) sebacate (DOS) as plasticizer and 2-(5-(4-nitrophenyl)furyl)-4,5-diphenyl imidazole (FFDFIN) as ionosphere.  The constructed electrodes showed a fast potentiometric response to  chloride  in the concentration range from 10-6 to 10-2 mol  ·  dm-3 with Nernstian slopes.  In the case of electrodes prepared  containing 1 and 3  wt  % of the ionosphere, the lifetime of the sensor was estimated to be about 6-7 days. The lifetime of the sensor containing 7 wt  % of  ionosphere was about 15-18 days. The electrode  containing 7 wt  % of  ionosphere was applied as an indicator electrode in the potentiometric titration of silver ions with NaCl.

Keywords:  chloride ion-selective PVC membrane,  ion-selective electrode (ISE), 2-(5-(4-nitrofenyl) furyl)-4,5-difenyl imidazole, chemical sensor.

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Published

2015-10-30

How to Cite

Arada, D. C. M. de los Ángeles, Vicente Luis, D. C. S., Altava, D. C. B., & Galindo, D. C. F. (2015). Construction and evaluation of chloride ion-selective electrodes. Revista Cubana De Química, 27(2), 119–130. Retrieved from https://cubanaquimica.uo.edu.cu/index.php/cq/article/view/251

Issue

Vol. 27 No. 2 (2015)

Section

Artículos

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