| Main Title |
Polarographic Determination of NTA. |
| Author |
Hoove, Thomas B. ;
|
| CORP Author |
Environmental Protection Agency, Athens, Ga. Southeast Environmental Research Lab. |
| Year Published |
1973 |
| Report Number |
EPA-16020-EWE; 13665,; R2-73-254 |
| Stock Number |
PB-222 940 |
| Additional Subjects |
( Acetic acid ;
Polarographic analysis) ;
( Nitriles ;
Polarographic analysis) ;
( Water analysis ;
Polarographic analysis) ;
Sea water ;
Bismuth organic compounds ;
Metal complexes ;
Indium organic compounds ;
Acetates ;
Aqueous electrolytes ;
Water pollution ;
Acetic acid/nitrilo-tri ;
Pulse differential polarography ;
Water pollution detection ;
Interference(Chelation)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-222 940 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
53p |
| Abstract |
Pulse differential polarography was found to be a more sensitive and precise method than linear sweep voltammetry for the determination of NTA as the bismuth complex in natural and waste waters. Indium was a less satisfactory complexant. Relative standard deviations of less than 5% were obtained by the dual cell pulse differential technique at 1 ppm NTA and calibrations were linear from 0.01 to 4 ppm. Copper caused low analytical results for NTA. No other significant interference by metals or complexants was found. An acetate electrolyte was much better than chloride for the determination of bismuth-NTA complex in sewage-type samples. Recommended procedures are given in the appendix. (EPA) |
