Severin, Erik J. and Sanner, Robert D. and Doleman, Brett J. and Lewis, Nathan S. (1998) Differential Detection of Enantiomeric Gaseous Analytes Using Carbon Black−Chiral Polymer Composite, Chemically Sensitive Resistors. Analytical Chemistry, 70 (7). pp. 1440-1443. ISSN 0003-2700. doi:10.1021/ac970757h. https://resolver.caltech.edu/CaltechAUTHORS:20171107-093619671
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Abstract
Carbon black−chiral polymer composites were used to provide diagnostic differential resistance responses in the presence of enantiomers of chiral gaseous analytes. Vapors of (+)-2-butanol and (−)-2-butanol, (+)-α-pinene and (−)-α-pinene, (+)-epichlorohydrin and (−)-epichlorohydrin, and methyl (+)-2-chloropropionate and methyl (−)-2-chloropropionate were generated and passed over a chemically sensitive carbon black−poly((R)-3-hydroxybutyrate-co-(R)-3-hydroxyvalerate) (77% butyrate) composite resistor. Each enantiomer of a pair produced a distinct relative differential resistance change on the chiral detector, whereas both enantiomers of a set produced identical signals on achiral carbon black−poly(ethylene-co-vinyl acetate) (82% ethylene) detectors.
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Additional Information: | © 1998 American Chemical Society. Received for review July 15, 1997. Accepted January 13, 1998. Publication Date (Web): February 20, 1998. R.D.S. thanks Lawerence Livermore National Laboratory for a Professional Research and Teaching leave. B.J.D. thanks the Natural Science and Engineering Research Council of Canada for a 1967 Centennial Fellowship. We gratefully acknowledge support for this work by DARPA, NASA, and the Army Research Office. | ||||||||||||
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Issue or Number: | 7 | ||||||||||||
DOI: | 10.1021/ac970757h | ||||||||||||
Record Number: | CaltechAUTHORS:20171107-093619671 | ||||||||||||
Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20171107-093619671 | ||||||||||||
Official Citation: | Differential Detection of Enantiomeric Gaseous Analytes Using Carbon Black−Chiral Polymer Composite, Chemically Sensitive Resistors. Erik J. Severin, Robert D. Sanner, Brett J. Doleman, and Nathan S. Lewis. Analytical Chemistry 1998 70 (7), 1440-1443. DOI: 10.1021/ac970757h | ||||||||||||
Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
ID Code: | 83023 | ||||||||||||
Collection: | CaltechAUTHORS | ||||||||||||
Deposited By: | Tony Diaz | ||||||||||||
Deposited On: | 07 Nov 2017 18:20 | ||||||||||||
Last Modified: | 15 Nov 2021 19:54 |
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