The studies regarding elaboration and selectivity of nitrite selective electrode

Dana Vlascici, Elena Maria Pica, Eugenia Fagadar-Cosma, Otilia Bizerea, Viorica Cosma

Full text: http://www.revistadechimie.ro/Article_ro.asp?lim=ro&rev=mp&ID=1301

Find on Google Scholar

---

Abstract

The purpose of this study was the elaboration and characterization of the nitrite-selective electrode. A PVC
membrane electrode based on the Co (III)- porphrinato chloride (CoTPPCl) is described. The electrode
revealed a Nernstian response over a wide ion concentration range 10-5- 10-1M. The best performance was
obtained with a membrane composition of 2:1 o-NPOE: PVC and 10% mol (TOMACl) towards ionophore
and a solid electrical contact. The electrode exhibits a good selectivity over a variety of inorganic and organic
anions such as: fluoride, bromide, iodide, nitrate, thiocyanate, salicylate and perchlorate.

---

---