Shedding light on spectrophotometry : the SpecUP educational spectrophotometer

Show simple item record Forbes, Patricia B.C. Nothling, Johan A. 2014-05-29T10:17:55Z 2014-05-29T10:17:55Z 2014-01
dc.description.abstract Students often regard laboratory instruments as ‘black boxes’ which generate results, without understanding their principles of operation. This lack of understanding is a concern because the correct interpretation of analytical results and the limitations thereof is invariably based on an understanding of the mechanism of measurement. Moreover, a number of tertiary institutions in Africa have very limited resources and access to laboratory equipment, including that related to the field of photonics, which prevents students from acquiring hands-on practical experience. We address both of these challenges by describing how students can assemble a novel, low-cost spectrophotometer, called the SpecUP, which can then be used in a range of experiments. The same kind of information can be generated as that obtained with costly commercial spectrophotometers (albeit of a lower quality). With the SpecUP, students also have the opportunity to vary instrumental parameters and to observe the effects these changes have on their experimental results, allowing for enquiry-based learning of spectroscopic principles. The results obtained for some chemistry-related spectrophotometric experiments are described for each of the two operational modes of the SpecUP, although the instrument can be applied in fields ranging from physics to biochemistry. en_US
dc.description.librarian am2014 en_US
dc.description.sponsorship The CSIR National Laser Centre and the African Laser Centre. en_US
dc.description.uri en_US
dc.identifier.citation Forbes PBC, Nöthling JA. Shedding light on spectrophotometry: The SpecUP educational spectrophotometer. S Afr J Sci. 2014;110(1/2), Art. #2013-0096, 5 pages. 10.1590/sajs.2014/20130096 en_US
dc.identifier.issn 0038-2353 (print)
dc.identifier.issn 1996-7489 (online)
dc.identifier.other 10.1590/sajs.2014/20130096
dc.language.iso en en_US
dc.publisher AOSIS Open Journals en_US
dc.rights © 2014. The Authors. Published under a Creative Commons Attribution Licence. en_US
dc.subject Spectrophotometry en_US
dc.subject Educational en_US
dc.subject Spectrophotometer en_US
dc.subject Photonics en_US
dc.subject SpecUP en_US
dc.title Shedding light on spectrophotometry : the SpecUP educational spectrophotometer en_US
dc.type Article en_US

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