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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

J. Chem. Educ., 2004, 81 (3), p 406

DOI: 10.1021/ed081p406

Publication Date (Web): March 1, 2004

Section:

History, Education, and Documentation

Abstract

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).

Keywords (Audience):

Second-Year Undergraduate

Keywords (Domain):

Analytical Chemistry

Keywords (Feature):

Topics in Chemical Instrumentation

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Cobalt

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This article has been cited by 4 ACS Journal articles (4 most recent appear below).

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