Main Title |
Molecular Spectral Interference in the Determination of Arsenic by Furnace Atomic Absorption. |
Author |
Poldoski., J. E. ;
|
CORP Author |
Environmental Research Lab.-Duluth, Minn. |
Year Published |
1977 |
Report Number |
EPA/600/J-77/035; |
Stock Number |
PB-269 929 |
Additional Subjects |
Arsenic ;
Water analysis ;
Atomic spectra ;
Concentration(Composition) ;
Surface waters ;
Chemical analysis ;
Absorption spectra ;
Particles ;
Error analysis ;
Water pollution ;
Sampling ;
Reprints ;
Water pollution sampling
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-269 929 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
5p |
Abstract |
A molecular spectral interference associated with a certain type of suspended particulate matter in natural waters is reported for the furnace atomic absorption determination of arsenic. In some water samples, arsenic concentrations were erroneously high by more than a factor of five above the actual concentration. Results of analyses were confirmed by an alternate analytical method. The degree of interference is a function of spectral bandpass and the concentration of hydrofluoric acid added to the sample. Use of 0.2-nm bandpass or 1% hydrofluoric acid markedly reduced the interference for the natural water samples investigated. |
Supplementary Notes |
Pub. in Atomic Absorption Newsletter, v16 n3 p70-73 May Jun 77. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Molecular Spectral Interference in the Determination of Arsenic by Furnace Atomic Absorption. |
PUB Date Free Form |
1977 |
Category Codes |
7D; 99F; 68D |
NTIS Prices |
PC A02/MF A01 |
Primary Description |
600/03 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323721460 |
Origin |
NTIS |
Type |
CAT |