An Inexpensive Field-Programmable Potentiostat

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Title:

An Inexpensive Field-Programmable Potentiostat

Url:

http://chemeducator.org/bibs/0011001/1110023dr.htm

Creator:

Gopinath, Ashwini Vittal
Russell, Dale

Publisher:

Chemical Educator (Firm)

Description: This article describes the practical design and construction of a small, inexpensive programmable potentiostat including a list of the components and circuitry for building a complete self-contained potentiostat - all for approximately $50 in component cost. Explanation is given about the basics and the operational characteristics of this potentiostat, illustrated by running cyclic voltammetric scans of potassium ferricyanide in a 3-electrode cell. The noise, as seen by the small oscillations on the voltammograms, may be lessened by the use of a shielded/grounded case with use of BNC connectors for attaching the electrodes to the potentiostat. Some of the components may no longer be manufactured and may have to substituted with equivalent available parts. Students interested in analytical instrumentation or electrochemistry, including projects involving field-portable electrochemical instrumentation, might also find this potentiostat useful. This is a good example of a practical instrument/ circuit design.

LC Classification:

Science -- Chemistry -- Analytical chemistry
Science -- Chemistry -- Analytical chemistry -- Quantitative analysis -- Electrochemical analysis -- Special methods, A-Z -- Potentiometry
Science -- Chemistry -- Analytical chemistry -- Study and teaching. Research -- Problems, exercises, examinations
Science -- Physics -- Electricity and magnetism -- Electricity -- Instruments and apparatus (General) -- Special instruments, A-Z -- Potentiometer
Technology -- Electrical engineering. Electronics. Nuclear engineering -- Electrical engineering. Electronics. Nuclear engineering -- Electronics -- Apparatus and materials -- Other, A-Z -- Potentiometer

GEM Subject:

Science -- Chemistry
Science -- Technology
Science -- Instructional issues

Key Concept:

Chemistry -- Qualitative analysis
Chemistry -- Quantitative analysis
Electrical engineering -- Potentiometers

Date Issued:

2006-02-01

Resource Type:

Reference Material
Instructional Material

Format:

Document -- PDF
Document -- HTML

Audience:

Educator
Learner

Education Level:

Higher Education
Higher Education -- Undergraduate (Lower Division)
Higher Education -- Undergraduate (Upper Division)
Higher Education -- Technical Education (Upper Division)
Higher Education -- Technical Education (Lower Division)
Vocational/Professional Development Education

Language:

English

Rights:

The Chemical Educator

Access Rights:

Free access

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Source:

Analytical Sciences Digital Library

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