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  Home > JCE Print > Journal of Chemical Education > Issues > 2005  > February  >
In the Laboratory
Cost-Effective Teacher
A Small-Scale Low-Cost Gas Chromatograph
Nataša Gros
Faculty of Chemistry and Chemical Technology, University of Ljubljana, 1000 Ljubljana, Slovenia

Margareta Vrtačnik
Faculty of Natural Sciences and Engineering, University of Ljubljana, 1000 Ljubljana, Slovenia

Cover
February 2005
Vol. 82 No. 2
p. 291
Abstract
A small-scale low-cost portable gas chromatograph (the total cost of the instrument is approximately $65) was developed that is suitable for hands-on learning and teaching of the basic concepts of chromatography. The portability and miniaturization were ensured by the application of a small propane/butane cylinder to supply the carrier gas and by the use of optic fibers for light transmission to the electronic unit with a photoresistor as a sensor. The instrument proved that the measurements are sufficiently detailed and reliable for the basic chromatographic concepts to be introduced through a hands-on approach. The instrument does not require the use of a computer for recording data, and it also enables students actively to engage in measurements and in the assembling of the instrument at a higher level.
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A detailed student manual and a teacher's guide are available.
*  Contents JCE2005p0291W.doc (Microsoft Word)
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JCE2005p0291W.zip

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More Information
*  Citation
 Gros, Natasa ; Vrtacnik, Margareta. J. Chem. Educ. 2005 82 291.
*  Keywords
 Analytical Chemistry; Chromatography; Laboratory Equipment / Apparatus; Teaching / Learning Aids
*  History
 Created:
Last Updated:		 January 4, 2005
January 14, 2005
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