ERIC Number: EJ1033280
Record Type: Journal
Publication Date: 2014-Jul
Abstractor: As Provided
Reference Count: 34
Design, Development, and Characterization of an Inexpensive Portable Cyclic Voltammeter
Mott, Jenna R.; Munson, Paul J.; Kreuter, Rodney A.; Chohan, Balwant S.; Sykes, Danny G.
Journal of Chemical Education, v91 n7 p1028-1036 Jul 2014
The teaching of instrumental analysis for many small colleges and high schools continues to be stymied by high-cost, complicated maintenance, high power requirements, and often the sheer bulk of the instrumentation. Such issues have led us to develop inexpensive instruments as part of a SMILE initiative (small, mobile instruments for laboratory enhancement). This lab-based pedagogy, primarily aimed at engaging science and engineering students, has shown to significantly enhance the confidence and achievement of students in our technology-based courses. One instrument that has been designed, constructed, and characterized is the cyclic voltammeter (CV). CV is a versatile electroanalytical technique that monitors the redox behavior of chemical and biochemical species in solution. The CV instrument and technique readily lends itself to miniaturization and facilitates the practical application of CV analysis within standard undergraduate and advanced high school laboratory courses. The entire instrument was constructed for less than $50, thus allowing deployment of multiple apparatus in laboratories with a modest budget. Less noisy data was obtained when a commercial Pt working electrode was used, taking the total cost to less than $250. Together with details on how to construct the instrument, a series of experiments for the student-built CV have been described.
Descriptors: Measurement Equipment, Chemistry, Electronics, Instrumentation, Science Instruction, Science Laboratories, College Science, Secondary School Science, High Schools, Science Experiments, Laboratory Experiments, Science Activities, Hands on Science
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: firstname.lastname@example.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education; Secondary Education; High Schools
Authoring Institution: N/A