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RECORD NUMBER: 33 OF 4107

Main Title A rapid method for estimating log P for organic chemicals /
Author Veith, Gilman D.; Morris., Richard T.
CORP Author Environmental Research Lab.-Duluth, Minn. ;Wisconsin Univ.-Superior.
Publisher Environmental Protection Agency, Office of Research and Development, Environmental Research Laboratory ; For sale by the National Technical Information Service,
Place Published Duluth, Minn. Springfield, Va.
Year Published 1978
Report Number EPA-600/3-78-049
Stock Number PB-284 386
OCLC Number 04146579
Subjects Organic compounds; Chemical analysis; Chromatographic analysis; High temperature tests; Numerical solutions; Calibrating; Solutions; Laboratory equipment; Liquid chromatography; Partition coefficients; Procedures
Subject Added Ent Liquid chromatography.; Logarithms.; Liquid chromatography.; Logarithms.
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100T4LP.txt
Holdings
Library   Call Number Additional Info Location Date Modified
EJAD EPA 600/3-78-049 Region 3 Library/Philadelphia, PA 04/16/1993
EKAM EPA 600/3-78-049 Region 4 Library/Atlanta,GA 05/13/1994
EKBD EPA-600/3-78-049 Research Triangle Park Library/RTP, NC 08/11/2000
ELBD EPA-600/3-78-049 AWBERC Library/Cincinnati,OH 04/10/1998
ELDD EPA-600/3-78-049 3 copies NHEERL/MED Library/Duluth,MN 05/04/2001
EOAD EPA 600/3-78-049 Region 8 Technical Library/Denver,CO 02/28/2011
EOBD EPA 600-3-78-049 NEIC Library/Denver,CO 01/14/2000
ERAD EPA 600/3-78-049 Region 9 Library/San Francisco,CA 10/22/2012
ESAD EPA 600-3-78-049 Region 10 Library/Seattle,WA 03/23/2010
NTIS PB-284 386 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 01/01/1988
Collation viii, 16 p. : ill. ; 28 cm.
Abstract A rapid, inexpensive technique based on reverse-phase high pressure liquid chromatography has been developed to estimate the n-octanol/water partition coefficient of organic chemicals. The system consists of a preparative Micro-Pak C-(R)10 reverse-phase column eluted with a 15 percent water/85 percent methanol solvent flowing at 2 ml/min at room temperature. The chemicals are detected in the eluant with a standard ultraviolet detector or a fraction collector system followed by appropriate analysis of the fractions to determine the retention time of the chemical. A linear calibration of the logarithm of retention time with the logarithm of the partition coefficient (Log P) is attained by using a mixture of benzene, bromobenzene, biphenyl, bibenzyl, pp'DDE, and 2,4,5,2',5' pentachlorobiphenyl as reference standards of known Log P. Chemicals with Log P of approximately 3 elute in less than 10 min whereas those with Log P greater than 5 elute after 20 min.
Notes Issued May 1978. Includes bibliographical references (p. 15).
Supplementary Notes Prepared in cooperation with Wisconsin Univ.-Superior.
Access Notes Also issued online.
Author Added Ent
Morris, Richard T.,
Corporate Au Added Ent Environmental Research Laboratory (Duluth, Minn.)
Corp Au Ser Add Ent United States. Environmental Protection Agency. Ecological research series ; EPA-600/2-78-049.
PUB Date Free Form 1978
Series Title Untraced Ecological research series ; EPA-600/3-78-049
NTIS Prices PC A03/MF A01
BIB Level m
ISBN pbk.
OCLC Time Stamp 20121017142503
Cataloging Source OCLC/T
Language eng
SUDOCS Number EP 1.23:600/3-78-049
Origin OCLC
Type MERGE
OCLC Rec Leader 01747cam 2200385Ii 45020


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