Main Title |
Evaluation of a prototype instrument for determining phosphorus in water / |
Author |
Hoover, Thomas B. ;
Long., J. MacArthur
|
Other Authors |
|
CORP Author |
Environmental Research Lab., Athens, Ga. |
Publisher |
Environmental Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency ; Available through the National Technical Information Service, |
Year Published |
1976 |
Report Number |
EPA 600-4-76-033; EPA-ROAP-16ADN-72 |
Stock Number |
PB-262 234 |
OCLC Number |
03410785 |
Subjects |
Flame photometry
|
Additional Subjects |
Phosphorus ;
Water analysis ;
Flame photometry ;
Surface waters ;
Sewage ;
Chemical analysis ;
Performance evaluation ;
Nutrients ;
Calibrating ;
Design criteria ;
Water pollution detection
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJED |
EPA 600/4-76/033 |
|
OCSPP Chemical Library/Washington,DC |
02/11/2005 |
ELBD ARCHIVE |
EPA 600-4-76-033 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD ARCHIVE |
EPA 600-4-76-033 |
|
AWBERC Library/Cincinnati,OH |
01/19/2022 |
ESAD |
EPA 600-4-76-033 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
NTIS |
PB-262 234 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
vi, 19 pages : illustrations ; 28 cm. |
Abstract |
A second-generation flame spectrometer for the direct determination of phosphorus in water was evaluated. Response to phosphorus in the form of phosphoric acid was linear from 0.5 to 16 ppm phosphorus. The relative standard deviation was approximately constant at 20 percent over the range. River water and municipal sewage effluent were analyzed after the addition of phosphoric acid (1.8 ppm P) and filtration through a series of microporous membranes. Recovery of the added phosphorus averaged 70 percent for the river water and 95 percent for the sewage effluent after treatment with cation exchange resin. There was no clear relation to filter pore size in the range 5 to 0.2 micrometers. Analyses of the higher range EPA Nutrient Reference Samples (approximately 0.5 ppm P) agreed within one standard deviation with the reference values, both for inorganic and total phosphorus. The lower concentration range samples (approximate 0.1 ppm P) gave barely detectable signals. |
Notes |
"EPA 600-4-76-033." "October 1976." Cover title. Includes bibliographical references (page 18). |