Influence of the medium (strongly acid or basic) over the electrochemical properties of the nitrate selective electrode

A nitrate selective electrode was prepared for use in an aggresive medium (high acidic or basic concentration). It is demonstrated that the depending E graph with respect to pNO3- has not a Nernstian response in concentration acidic range upper 0.1 mol/L H2SO4. The observed behaviour is supposed to...

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Bibliographic Details
Main Author: DEL TÓRO DÉNIZ,Rubén (author)
Other Authors: RAJMANKO,E. M. (author), PEÓN ESPINOSA,Ana María (author), PEÑA VELÁZQUEZ,Inés (author)
Format: article
Language:eng
Published: 1997
Subjects:
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0100-46701997000100003
Country:Brazil
Oai:oai:scielo:S0100-46701997000100003
Description
Summary:A nitrate selective electrode was prepared for use in an aggresive medium (high acidic or basic concentration). It is demonstrated that the depending E graph with respect to pNO3- has not a Nernstian response in concentration acidic range upper 0.1 mol/L H2SO4. The observed behaviour is supposed to be due to the formation of a dimeric anion HN2O6-.