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  Home > JCE Print > Journal of Chemical Education > Issues > 1999  > November  >
In the Laboratory
Antacids Revisited with Modern Chemical Instruments: GCMS, AAS, and CCT
Stanley L. Burden and Christopher J. Petzold
Chemistry Department, Taylor University, Upland, IN 46989
Cover
November 1999
Vol. 76 No. 11
p. 1544
Abstract
Data from multiple analytical methods are often required to identify or characterize samples. Typical undergraduate experiments utilize only one or two techniques in a given experiment. This paper describes a novel experiment that requires students to obtain and interpret data from several analytical techniques to identify the brand name of a commercial antacid. Students receive a ground sample of a commercial antacid. They are required to design a set of experiments utilizing computer controlled titrations (CCT), atomic absorption (AA), gas chromatography-mass spectroscopy (GCMS), and careful quantitative manual titrations using a visual indicator of their choice to determine the brand name of their sample from a list of six to eight choices.
Supplement
A list of equipment and chemicals, instructor's notes for student handouts and general hints, and a handout for students describing the application experiment and its write-up are provided.
*  Contents
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*  Citation
 Burden, Stanley L.; Petzold, Christopher J. J. Chem. Educ. 1999 76 1544.
*  Keywords
 Analytical Chemistry; Laboratory Instruction; Chromatography; Mass Spectrometry; Titrimetry; Instrumental Methods
*  History
 Created:
Last Updated:		 October 12, 1999
November 22, 2005
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