Transcription of Ch. 23 Potentiometric Methods
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Ch. 23 Potentiometric Methods
Ch. 23 Potentiometric Methods Introduction: 1.) Potentiometric Methods : based on measurements of the potential of electrochemical cells in the absence of appreciable currents (i . 0) 2.) Basic Components: a) reference electrode : gives reference for potential measurement b) indicator electrode : where species of interest is measured c) salt bridge d) potential measuring device Figure A cell for Potentiometric determinations Ecell = (E ind E ref ) + Ej For most electroanalytical Methods , the junction potential is small enough to be neglected.
Ch. 23 Potentiometric Methods Introduction: 1.) Potentiometric Methods: based on measurements of the potential of electrochemical cells in the absence of appreciable currents (i . 0) 2.) Basic Components: a) reference electrode: gives reference for potential measurement
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