NotesFAQContact Us
Collection
Advanced
Search Tips
Peer reviewed Peer reviewed
Direct linkDirect link
ERIC Number: EJ1013562
Record Type: Journal
Publication Date: 2013-Apr
Pages: 6
Abstractor: As Provided
Reference Count: 23
ISBN: N/A
ISSN: ISSN-0021-9584
Flow Injection Analysis and Liquid Chromatography for Multifunctional Chemical Analysis (MCA) Systems
Mayo, Ana V.; Loegel, Thomas N.; Bretz, Stacey Lowery; Danielson, Neil D.
Journal of Chemical Education, v90 n4 p500-505 Apr 2013
The large class sizes of first-year chemistry labs makes it challenging to provide students with hands-on access to instrumentation because the number of students typically far exceeds the number of research-grade instruments available to collect data. Multifunctional chemical analysis (MCA) systems provide a viable alternative for large-scale instruction while supporting a hands-on approach to more advanced instrumentation. This study describes how the capabilities of MCA systems are extended to introduce liquid chromatography (LC) and flow injection analysis (FIA) in undergraduate laboratories. A semi-micro plastic cuvette with a Teflon tubing insert is fashioned as the flow cell for a MCA absorbance-fluorescence detector. Two MCA systems, Vernier and MeasureNet, are used in two unique experiments demonstrating the detection of salicylate in aspirin tablets by FIA and the LC separation of a mixture of riboflavin and fluorescein. Both instruments, composed of a syringe pump, T-injection valve, and the MCA detector, operated in the kinetic mode, are rugged and inexpensive permitting student construction, if desired. (Contains 2 tables, 6 figures, and 1 scheme.)
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: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A