Main Title |
Assessing the environmental impact of fossil-fuel based energy sources : measurement of organometal species in biological and water samples using liquid chromatography with electrochemical detection / |
Author |
MacCrehan, William A.,
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Other Authors |
|
CORP Author |
United States. Environmental Protection Agency. Office of Environmental Engineering and Technology.; United States. Environmental Protection Agency. Office of Energy, Minerals, and Industry.; Center for Analytical Chemistry (U.S.) |
Publisher |
Office of Energy, Minerals, and Industry, Office of Research and Development, U.S. Environmental Protection Agency, |
Year Published |
1979 |
Report Number |
EPA-600-7-79-211 |
Stock Number |
PB80-128168 |
OCLC Number |
05886807 |
Subjects |
Organometallic compounds--Analysis ;
Liquid chromatography
|
Additional Subjects |
Organometallic compounds--Analysis ;
Liquid chromatography ;
Metal containing organic compounds ;
Chromatographic analysis ;
Laboratory equipment ;
Detectors ;
Mercury containing organic compounds ;
Electrochemical detection
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Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-7-79-211 |
|
Headquarters Library/Washington,DC |
12/28/2015 |
EJED |
EPA 600/7-79-211 |
|
OCSPP Chemical Library/Washington,DC |
01/01/1988 |
EKBD |
EPA-600/7-79-211 |
|
Research Triangle Park Library/RTP, NC |
08/25/2000 |
ELBD ARCHIVE |
EPA 600-7-79-211 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ERAD |
EPA 600/7-79-211 |
|
Region 9 Library/San Francisco,CA |
02/11/2013 |
ESAD |
EPA 600-7-79-211 |
2 copies |
Region 10 Library/Seattle,WA |
06/01/2016 |
NTIS |
PB80-128168 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vii, 56 pages : illustrations, tables ; 28 cm. |
Abstract |
A new measurement approach for the determination of trace organometals in energy related environmental samples is described. The method is based on liquid chromatographic separation with electrochemical detection. A detailed description of the development of the electrochemical detection system, optimized for reducible analytes, is given. The conditions for the separation of methyl-, ethyl-, and phenylmercury in under 16 minutes by charge-neutralization reverse-phase chromatography are developed. Also, a separation of a number of organoleads, including trimethyl- and triethyllead, are described. The potential interferences in this type of organometal determination are investigated. Sample preparation methods and improvement in the detector selectivity are described that overcome these interferences. A significant improvement in the selectivity of the detection system has been investigated using a differential pulse waveform. Sample preparation methods for the determination of methylmercury in biological tissue are examined and measurements are made on two research materials: lyophilized tuna and shark meat. A column preconcentration procedure for methyl- and ethylmercury in natural water samples is developed. |
Notes |
"November 1979." "Interagency Agreement No. EPA-IAG-D5-E684." "EPA Project Officer: J. Stemmle." "This study was conducted as part of the Federal Interagency Energy/Environment Research and Development Program." Includes bibliographical references (pages 52-56). |