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2004
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In the Laboratory
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Topics in Chemical Instrumentation
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Automated Flow-Injection Instrument for Chemiluminescence Detection Using a Low-Cost Photodiode Detector: An Interdisciplinary Project in Chemical Instrumentation, Graphical Programming, Computer Interfacing, and Analytical Chemistry
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A. Economou, D. Papargyris, and J. Stratis
Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 541 24, Greece
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March 2004
Vol. 81 No. 3
p. 406
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| Abstract |
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This work is concerned with the design, construction, automatic control, and optimization of a flow injection analysis (FIA) instrument with chemiluminescence (CL) detection. The project proceeds in three stages: the construction of the detector, the construction and control of the flow system, and the chemical measurements. The light detector is based on a low-cost commercially available photodiode. Control of the flow system and data acquisition is performed through an interface card controlled by the LabVIEW software tool. In developing the detector and the flow system, students were acquainted with different aspects of instrument design and control, such as light detectors, operational amplifiers, analog and digital filtering, computer interfacing (digital-to-analog converters, analog-to-digital converters, digital input–output), and graphical programming. The apparatus developed was used to optimize the chemical and instrumental variables of a FIA–CL method for the quantitative determination of Co(II).
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| Supplement |
Instructions for preparing the solutions, notes for the instructor, approximate cost of the expendables, and a table of Simplex optimization procedure are available.
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 Contents |
JCE2004p0406W.doc (Microsoft Word)
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| More Information |
Citation |
Economou, A.; Papargyris, D.; Stratis, I. J. Chem. Educ. 2004 81 406.
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Keywords |
Analytical Chemistry; Cobalt; Flow-Injection Analysis; Laboratory Computing / Interfacing; Laboratory Equipment / Apparatus; Laboratory Instruction; Luminescence
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History |
Created:
Last Updated: |
February 3, 2004
February 18, 2005
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| Home > JCE Print > Journal of Chemical Education > Issues >
2004
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March
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406
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