| Main Title |
Direct Determination of Chelons at Trace Levels by One-Drop Square-Wave Polarography. |
| Author |
Stojek, Z. ;
Osteryoung, J. ;
|
| CORP Author |
State Univ. of New York at Buffalo. Dept. of Chemistry.;Environmental Research Lab., Athens, GA. |
| Year Published |
1981 |
| Report Number |
EPA-R-805183; EPA-600/J-81-678; |
| Stock Number |
PB84-142397 |
| Additional Subjects |
Trace elements ;
Polarographic analysis ;
Chelating agents ;
Complex compounds ;
Mercury(Metals) ;
Oxidation ;
Volumetric analysis ;
EDTA ;
Chemical analysis ;
Water pollution ;
Nitrogen organic compounds ;
Reprints ;
Chelons ;
Water pollution detection ;
Heavy metals ;
Acetic acid/nitrilo-tri ;
Cyclohexane diamine tetraacetic acid ;
Dioxadiazatetradecanedioic acid/bis(carboxymethyl)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB84-142397 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
9p |
| Abstract |
The direct anodic oxidation of mercury in the presence of chelons can be used for determination of the chelons at trace levels. One-drop square-wave polarography proved superior to differential pulse polarography for this purpose and gave detection limits of 7, 7, 5, and 20 x 10 to the -8th power M for EDTA, DCTA, EGTA, and NTA, respectively, with calibration curves linear to 10 to the -5 power M. At pH 4.8 heavy metals can be determined in the presence Ca(+2) by using amperometric titration based on this method. (Copyright (c) 1981 by the American Chemical Society.) |
| Availability Notes |
Pub. in Analytical Chemistry 53, p847-851 1981. |
| NTIS Title Notes |
Journal article. |
| Title Annotations |
Reprint: Direct Determination of Chelons at Trace Levels by One-Drop Square-Wave Polarography. |
| PUB Date Free Form |
c1981 |
| Category Codes |
7D; 68D; 99A |
| NTIS Prices |
Not available NTIS |
| Primary Description |
600/01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
409018012 |
| Origin |
NTIS |
| Type |
CAT |
