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Easy-to-Make Ag/AgCl Reference Electrode

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Gaston A. East

Instituto de Química, Universidade de Brasília, Caixa Postal 04478, CEP 70.919-900 Brasília-DF, Brazil

M. A. del Valle

Facultad de Química, Universidad CatÓlica de Chile, Vicuña Mackenna 4860, Marcul, Santiago, Chile

J. Chem. Educ., 2000, 77 (1), p 97

DOI: 10.1021/ed077p97

Publication Date (Web): January 1, 2000

Section:

History, Education, and Documentation

Abstract

Reference electrodes are commonplace in potentiometry and voltammetry and their importance in the chemical laboratory is out of question. Commercially available reference electrodes are usually bulky and unsuited for many purposes (e.g., to be used in small electrochemical cells within a Luggin capillary). In this contribution we describe the construction of a silver-silver chloride reference electrode that can be readily assembled in any teaching laboratory and that fulfills most of the requirements expected for a device of this kind.

Keywords (Audience):

High School / Introductory Chemistry

Keywords (Domain):

Inorganic Chemistry

Keywords (Feature):

Cost-Effective Teacher

Keywords (Subject):

Instrumental Methods

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This article has been cited by 5 ACS Journal articles (5 most recent appear below).

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Construction of Ag/AgCl Reference Electrode from Used Felt-Tipped Pen Barrel for Undergraduate Laboratory
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Journal of Chemical Education2009 86 (3), 355
- Construction of Ag/AgCl Reference Electrode from Used Felt-Tipped Pen Barrel for Undergraduate Laboratory
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Electropolymerized Conducting Polymer as Actuator and Sensor Device: An Undergraduate Electrochemical Laboratory Experiment
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Journal of Chemical Education2005 82 (9), 1372
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  Optimum conditions to electrodeposit poly(thiophene), poly(pyrrole) or poly(aniline) and to modify these electrodes by electrodeposition of Pt or Pt+Pb particles on these matrices have been established. The response of these electrodes was assayed for the ...
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