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ERIC Number: EJ1013030
Record Type: Journal
Publication Date: 2013-Mar
Pages: 4
Abstractor: As Provided
Reference Count: 9
ISSN: ISSN-0021-9584
Using a Homemade Flame Photometer to Measure Sodium Concentration in a Sports Drink
LaFratta, Christopher N.; Jain, Swapan; Pelse, Ian; Simoska, Olja; Elvy, Karina
Journal of Chemical Education, v90 n3 p372-375 Mar 2013
The purpose of this experiment was to create a simple and inexpensive flame photometer to measure the concentration of sodium in beverages, such as Gatorade. We created a nebulizer using small tubing and sprayed the sample into the base of a Bunsen burner. Adjacent to the flame was a photodiode with a filter specific for the emission of the sodium D-line. After making a calibration curve, students could detect the amount of sodium in Gatorade to within 10% of the value on the label. The system costs less than $500 and can be assembled by students and used in an analytical chemistry laboratory course. (Contains 1 table and 4 figures.)
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: Middle Schools; High Schools; Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A