Main Title |
Development of a Method to Determine Ortho-, Pyro-, and Tripoly-Phosphate in Sediment. |
Author |
Blancha, R. W. ;
Rieg, Domingo ;
|
CORP Author |
Missouri Water Resources Research Center, Columbia. |
Year Published |
1973 |
Report Number |
DI-14-31-0001-3605; OWRR-B-051-MO; 06035,; B-051-MO(1) |
Stock Number |
PB-216 603 |
Additional Subjects |
( Sediments ;
Chemical analysis) ;
( Inorganic phosphates ;
Sediments) ;
Solvent extraction ;
Chromatographic analysis ;
Errors ;
Accuracy ;
Water pollution ;
Pyrophosphates ;
Tripolyphosphates
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-216 603 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
57p |
Abstract |
Phosphate detergents are primarily sodium tripolyphosphates. High analysis phosphates used in liquid fertilizers and some solid fertilizers are composed of orthophosphate, pyrophosphate and tripolyphosphate. Unfortunately, there are no methods available to extract and separate these phosphates when they are contained in sediments. The objective of the report is to present a method for the extraction, separation, and analysis of them. In the method, sediment is extracted with 2% EDTA + 0.1M NH4F followed by a second extract of 2% EDTA + 1N NaOH. Then orthophosphate (OP), PP, and TPP are separated by anion exchange chromotography, and the fractions collected and P determined after extraction into isobutanol. The limit of detection of the method was 0.5 microgram P/g sediment. |
NTIS Title Notes |
Completion rept., 1 Jul 71-31 Oct 72. |
PUB Date Free Form |
3 Jan 73, |
Category Codes |
8H; 64H; 59A; 68D |
NTIS Prices |
PC A04/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326548192 |
Origin |
NTIS |
Type |
CAT |