Main Title |
Rapid Measurement of Aqueous Hydroxyl Radical Concentrations in Steady-State HO Flux Systems. |
Author |
Ireland, J. ;
Valinieks, J. ;
|
CORP Author |
Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab. ;Riga Technical Univ. (Latvia). Faculty of Chemical Technology. |
Publisher |
c1992 |
Year Published |
1992 |
Report Number |
EPA/600/J-92/402; |
Stock Number |
PB93-131779 |
Additional Subjects |
Hydroxyl radicals ;
Chemical analysis ;
Water pollution detection ;
Oxidation ;
Steady state ;
Aqueous solutions ;
Water treatment ;
Gas chromatography ;
Mass spectroscopy ;
Nitrogen organic compounds ;
Water pollution sampling ;
Oxidation ;
Electrophoresis ;
Reprints ;
Nitrone/(pyridyl-oxide)-N-butyl
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB93-131779 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
16p |
Abstract |
In recent years the hydroxyl radical (HO.) has become the focus of a significant body of research concerning the chemical oxidation of anthropogenic organic compounds in the environment. The spin-trap compound alpha-(4-pyridyl-1-oxide)-N-tert-butyl-nitrone (4-POBN) is utilized for the detection and quantitation of the hydroxyl radical (HO) in aqueous solution. Capillary electrophoresis enables rapid analysis of the probe compound. The thermally unstable HO radical adduct of 4-POBN can be unequivocally identified by gas chromatography / mass spectrometry analysis of it's pentafluorobenzyl ether. The minimum steady-state flux of HO. is determined in several advanced oxidation systems including photo-Fenton, ozone, and titanium dioxide based radical generators. |
Supplementary Notes |
Pub. in Jnl. Chemosphere, v25 n3 p383-396 1992. Prepared in cooperation with Riga Technical Univ. (Latvia). Faculty of Chemical Technology. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Rapid Measurement of Aqueous Hydroxyl Radical Concentrations in Steady-State HO Flux Systems. |
Category Codes |
68D; 50B; 99A; 99F |
NTIS Prices |
PC A03/MF A01 |
Primary Description |
600/14 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
305026771 |
Origin |
NTIS |
Type |
CAT |