Main Title |
GC/MS methodology for priority organics in municipal wastewater treatment / |
Author |
Bishop, Dolloff F.
|
CORP Author |
Municipal Environmental Research Lab., Cincinnati, OH. |
Publisher |
U.S. Environmental Protection Agency, Research and Development, Municipal Environmental Research Laboratory : Center for Environmental Research Information [distributor], |
Year Published |
1980 |
Report Number |
EPA-600/2-80-196; |
Stock Number |
PB81-127813 |
OCLC Number |
17450817 |
Subjects |
Water--Purification--Organic compounds removal ;
Organic water pollutants--Measurement
|
Additional Subjects |
Sewage ;
Water analysis ;
Organic compounds ;
Waste disposal ;
Gas chromatography ;
Mass spectroscopy ;
Samples ;
Sludges ;
Pesticides ;
Chemical analysis ;
Separation ;
Industrial wastes ;
Extraction ;
Water pollution detection ;
Toxic substances ;
State of the art
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJDD |
EPA-600/2-80-196 |
|
Env Science Center Library/Ft Meade,MD |
08/28/1998 |
NTIS |
PB81-127813 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vii, 43 pages : charts ; 28 cm |
Abstract |
A state-of-the-art review is presented on the current GC/MS methodology for the analysis of priority toxic organics in municipal wastewater treatment. The review summarizes both recent published and unpublished literature on GC/MS methods for analysis of toxic organics in municipal wastewaters and sludges. The EPA has developed methodology for the measurement of these priority toxic organics based on GC/MS technology. Succinctly, the methodology separates the purgeable priority organics from the environmental sample by purging with inert gas and trapping of the organics on a Tenax and silica gel trap. The organics are then desorbed, identified and quantitated with packed column GC/MS analysis. The methodology separates the extractable organics by extracting with methylene chloride, first at pH II and then at pH 2, and then identifies and quantitates the organics in the base/neutral and acid extracts by packed column GC/MS analysis. Municipal wastewaters and sludges contain a wide variety of extractable organics which can interfere in the GC/MS analysis. Thus, the extracts may require clean-up or organics separation before the GC/MS analyses. Principal classes of organic interferences include lipids, fatty acids and saturated hydrocarbons. The approaches to separate the desirable priority organics from the interferences include acid/base separation, molecular size separation and polarity separation. |
Notes |
"November 1980." Includes bibliographical references. "EPA 600/2-80-196." "PB81-1278137." Microfiche. |