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  Home > JCE Print > Journal of Chemical Education > Issues > 1997  > December  >
In the Laboratory
Acetone and Ethyl Acetate in Commercial Nail Polish Removers: A Quantitative NMR Experiment Using an Internal Standard
David W. Clarke
Northwestern State University of Louisiana, Department of Chemistry and Physics, Natchitoches, LA 71497
Cover
December 1997
Vol. 74 No. 12
p. 1464
Abstract
The qualitative and quantitative analysis of commercial nail polish removers is performed on a 60 MHz NMR spectrometer. After taking NMR spectra of the polish removers, students can make peak assignments for the known components of acetone and ethyl acetate. Using these spectra, students are also able to identify the unknown alcohol present in the remover as ethanol. Quantitative analysis of either the acetone or ethyl acetate in the nail polish removers is accomplished by comparing the analyte peak intensities with that of an internal standard. The system in which deuterated acetone is used as a solvent and methylene chloride as an internal standard gave precise results for both commercial removers and for standards prepared from pure acetone or an ethyl acetate/ethanol mixture. As recovery from the standards was approximately 96 - 98% of what was anticipated, the analysis of the commercial products is also believed to be accurate.
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*  Contents JCE1997p1464W.doc (Microsoft Word)
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*  Citation
 Clarke, David W. J. Chem. Educ. 1997 74 1464.
*  Keywords
 Laboratory Instruction, Laboratory Equipment/Apparatus, NMR Spectrometry, and Analytical Chemistry
*  History
 Created:
Last Updated:		 7/20/1999
2/14/2006
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