| Main Title |
Method for the supercritical fluid extraction of soils/sediments |
| Author |
Lopez-Avila, Viorica. ;
Dodhiwala., N. S.
|
| Other Authors |
|
| CORP Author |
Mid-Pacific Environmental Lab., Mountain View, CA.;Environmental Monitoring Systems Lab., Las Vegas, NV. |
| Publisher |
U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory ; |
| Year Published |
1990 |
| Report Number |
EPA/600/4-90/026; EPA-68-03-3511; PB91127803 |
| Stock Number |
PB91-127803 |
| OCLC Number |
33319986 |
| Subjects |
Supercritical fluid extraction
|
| Additional Subjects |
Soils ;
Carbon dioxide ;
Sediments ;
Pesticides ;
Aromatic polycyclic hydrocarbons ;
Alkalies ;
Cost analysis ;
Tables(Data) ;
Graphs(Charts) ;
Supercritical gas extraction ;
Land pollution ;
Laboratory tests ;
Polychlorobiphenyl compounds ;
Acids
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EMBD |
EPA/600/4-90/026 |
|
NRMRL/GWERD Library/Ada,OK |
10/27/1995 |
| NTIS |
PB91-127803 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
xiii, 137, 80, 17 p. : ill. ; 28 cm. |
| Abstract |
Supercritical fluid extraction has been publicized as an extraction method which has several advantages over conventional methods, and it is expected to result in substantial cost and labor savings. The study was designed to evaluate the feasibility of using supercritical fluid extraction as a sample extraction method for pollutants and matrices of concern to the EPA. Various matrices were spiked with compounds from several classes of pollutants and were extracted with supercritical carbon dioxide, with and without modifiers. Based on the results, a preliminary protocol was developed which was then tested with additional simple and complex matrices. Another important segment of the work was to study the influence of variables on recoveries. The results of the study indicate that supercritical fluid extraction with carbon dioxide, with or without modifiers, is an attractive method for the extraction of organic contaminants from environmental solid matrices. Potential advantages of the method include less solvent use and disposal, reduced manpower requirement, and increased speed and selectivity. However, more developmental work has to be done before supercritical fluid extraction becomes an easy-to-use, off-the-shelf method. |
| Notes |
"November 1990." "EPA/600/4-90/026." "Contract no. 68-03-3511." "Project officer, Werner F. Beckert." |
