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ERIC Number: EJ1148210
Record Type: Journal
Publication Date: 2017-Jul
Pages: 5
Abstractor: As Provided
ISSN: ISSN-0021-9584
Quantifying Protein Concentrations Using Smartphone Colorimetry: A New Method for an Established Test
Gee, Clifford T.; Kehoe, Eric; Pomerantz, William C. K.; Penn, R. Lee
Journal of Chemical Education, v94 n7 p941-945 Jul 2017
Proteins are involved in nearly every biological process, which makes them of interest to a range of scientists. Previous work has shown that hand-held cameras can be used to determine the concentration of colored analytes in solution, and this paper extends the approach to reactions involving a color change in order to quantify protein concentration (e.g., green to blue). Herein, we describe the successful use of smartphone colorimetry to quantify protein concentration using two common colorimetric biochemical methods, the Bradford and biuret assays. The ease of the experimental setup makes these lab experiments accessible to a wide range of students and can be used as both high school and college level laboratory experiments.
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:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education; Higher Education; Postsecondary Education
Audience: Teachers
Language: English
Sponsor: National Science Foundation (NSF)
Authoring Institution: N/A
Grant or Contract Numbers: CHE1352091