| Main Title |
Pyrographic gross characterization of water contaminants / |
| Author |
Lysyj, Ihor, ;
Lysyi, Ihor.
|
| Other Authors |
|
| Publisher |
U.S. Environmental Protection Agency, Southeast Environmental Research Laboratory, |
| Year Published |
1973 |
| Report Number |
EPA-R2-73-227 |
| OCLC Number |
01050427 |
| Subjects |
Water--Pollution--Measurement ;
Water--Pollution--Computer programs
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA R2-73-227 |
|
Headquarters Library/Washington,DC |
11/15/2013 |
| ELBD ARCHIVE |
EPA R2-73-227 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA R2-73-227 |
repository copy |
AWBERC Library/Cincinnati,OH |
04/30/2019 |
|
| Collation |
vii, 94 pages : illustrations, figures, tables ; 28 cm |
| Notes |
"May 1973." "Contract no. 14-12-802. Project no. 16040 EXD." "Prepared by the Southeast Environmental Research Laboratory." "Prepared for U.S. Environmental Protection Agency Office of Research and Development." Includes bibliographical references (pages 57-59). |
| Contents Notes |
A method was developed for direct analysis of organic materials in aqueous solutions based on thermal fragmentation followed by gaschromatographic separation and detection of the resulting derivative compositions. Such thermal fragmentation processes were found to be quantitatively linear, i.e., response is proportional to concentration, and independent for each organic compound in a mixture. In addition, the pyrographic pattern produced by a mixture of organic compounds is a simple arithmetic summation of contributing patterns of each compound present. A recorded pattern of pyrolytically produced fragments for a given water sample reflects the total nature of its organic composition, and can be interpreted and differentiated in a number of ways. Using a priori established calibration patterns for individual components to be found in a mixture, the pattern produced by a mixture can be analyzed mathematically. The system can be calibrated in terms of pure organic compounds, classes of organic materials, or any other arbitrarily defined organic mixtures such as those found in industrial waste effluents. The practical hydrochemical methodology, which was developed as a result of this effort, comprises analytical and data processing hardware, mathematical logic, and computer procedures and programs for data analysis and interpretation. The instrumentation was designed and assembles in a unitized package, and required only electrical and telephone lines for its operation. The Mark 1 prototype instrument was tested in a trailer under field conditions of operation for 2 years. An automated Mark 2 instrument was fabricated. The practical utilization of this new hydrochemical tool was studied in three areas : water pollution surveillance, waste treatment processes, and characterization of natural unpolluted water. |
| Place Published |
Washington, DC |
| Corporate Au Added Ent |
United States. Environmental Protection Agency. Office of Research and Monitoring. |
| Title Ser Add Ent |
Research reporting series. Environmental protection technology ; 73-227. |
| PUB Date Free Form |
1973 |
| Series Title Traced |
Environmental protection technology series EPA-R2-73-227 |
| Series Title Untraced |
Environmental protection technology series ; EPA-R2-73-227 |
| BIB Level |
m |
| Medium |
unmediated |
| Content |
text |
| Carrier |
volume |
| Cataloging Source |
OCLC/T |
| OCLC Time Stamp |
20190426094629 |
| Language |
eng |
| SUDOCS Number |
EP 1.23/2:73-227; EP 1.23/2:R 2-73-227; EP 1.23/2: 73-227 |
| Origin |
OCLC |
| Type |
CAT |
| OCLC Rec Leader |
03868cam 2200505Ii 45010 |
