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ERIC Number: EJ1218925
Record Type: Journal
Publication Date: 2019-Jun
Pages: 7
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: N/A
Simplified Low-Cost Colorimetry for Education and Public Engagement
O'Donoghue, J.
Journal of Chemical Education, v96 n6 p1136-1142 Jun 2019
This work describes the design, building, and testing of miniature, low-cost LED-LDR colorimeters for absorption-spectrophotometry experiments. It also describes using these colorimeters for simplified context-based-learning (CBL) activities in school teaching laboratories and for public-engagement events. The colorimeters are simple and robust, performing well against a conventional benchtop UV-vis spectrophotometer. Data collection and analysis is quick and intuitive, allowing for efficient turnaround between groups and making it particularly useful at public-engagement events. The experiments and activities described here are based on real-life examples to emphasize the usefulness of chemical analysis and quantification in everyday life.
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: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A