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A Simple Hanging Mercury Drop Electrode

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Florinel Gabriel Banica

Department of Chemistry, Norwegian University of Science and Technology, Trondheim N-7491, Norway

J. Chem. Educ., 2000, 77 (1), p 98

DOI: 10.1021/ed077p98

Publication Date (Web): January 1, 2000

Section:

History, Education, and Documentation

Abstract

A device producing reproducible hanging mercury drops at the end of a glass capillary is described. Mercury flow through the capillary is controlled by means of a closing needle actuated by an electromagnetic relay. The timing circuit is very simple and consists only of resistors and capacitors. This simple electrode could find various applications in the teaching laboratory for illustrating the principles of general electrochemistry, stripping voltammetry, and complex equilibria in solutions.

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Analytical Chemistry

Keywords (Feature):

Cost-Effective Teacher

Keywords (Subject):

Instrumental Methods

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This article has been cited by 1 ACS Journal articles (1 most recent appear below).

An Environmentally Friendly, Cost-Effective Determination of Lead in Environmental Samples Using Anodic Stripping Voltammetry
Michael J. Goldcamp , Melinda N. Underwood , Joshua L. Cloud and Sean Harshman , Kevin Ashley
Journal of Chemical Education2008 85 (7), 976
- An Environmentally Friendly, Cost-Effective Determination of Lead in Environmental Samples Using Anodic Stripping Voltammetry
  Michael J. Goldcamp , Melinda N. Underwood , Joshua L. Cloud and Sean Harshman , Kevin Ashley
  Journal of Chemical Education2008 85 (7), 976
  Contamination of the environment with heavy metals such as lead presents many health risks. Simple, effective, and field-portable methods for the measurement of toxic metals in environmental samples are vital tools for evaluating the risks that these ...
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