Characterization of a Silver Modified PVCAc Electrode and Its Application as a Ag(I)‐Selective Potentiometric Sensor

Abstract

An all solid-state Ag(I) ion-selective electrode has been prepared by simply immersing a glassy carbon rod coated with PVCAc, which contained plasticizer and additive but no ionophore, into the AgNO 3 solution. The response of the electrode was linear with a Nernstian slope of 60.25 mV/decade within the concentration range from 1 10 À1 to 1 10 À5 M and with a detection limit of 4.25 10 À6 M. The stability as an effect of various cations was defined. The electrode is suitable for use in high acidic solutions (pH < 1 to 7) and has successfully been applied for the determination of silver(I) concentrations in different samples.

Analytical application of poly(vinyl chloride-co-vinyl acetate) electrode modified with silver for chloride ions determination in real systems

“…The possibility of applying the proposed РVСАс/Аg potentiometric sensor was tested by determining Ag + ions in ecological water samples and colloidal silver water (Sejmanović et al, 2011). In this study simple Ag-selective electrode was used for determination of Clions by potentiometric titrations in spring water samples.…”

Ampliação do uso da técnica de espectrometria de absorção atômica utilizando tubo metálico na chama para determinação de prata

“…A determinação de prata pode ser realizada por meio de técnicas eletroquímicas 4-6 e espectrométricas [7][8][9][10][11][12][13][14][15] , por exemplo. Dentre os métodos espectrométricos, pode-se destacar a espectrometria de absorção atômica com chama (FAAS) 7-10 e espectrometria de absorção atômica com atomização eletrotérmica (ETAAS) [11][12][13][14][15] .…”