Radiotracer study of thorium complexation with humic acid at pH 2-11 using free-liquid electrophoresis

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F09%3A00163809" target="_blank" >RIV/68407700:21340/09:00163809 - isvavai.cz</a>

Result on the web

—

DOI - Digital Object Identifier

—

Result language

angličtina

Original language name

Radiotracer study of thorium complexation with humic acid at pH 2-11 using free-liquid electrophoresis

Original language description

Free-liquid electrophoresis was used to study thorium complexation with Aldrich humic acid (HA) in aqueous solutions of 0.01M (NaClO4 + HClO4 or NaOH) in dependence on pH, concentration of thorium and HA (0.1-10 mg/L). The abundances and the mean electrophoretic mobilities of thorium humate complexes were calculated from the electrophoretic mobilities of thorium measured. It has been found that negatively charged humate complexes dominate in the solutions of pH 2-11 containing 1-10 mg/l HA and up to 0.001 M HCO3-. Experimental evidence was given of the formation of Th(OH)4HAy- complex at pH 8-11 and its stability constant was determined. New conclusions about spontaneous association of HA molecules at pH 2-6 and about binding of thorium by non-dissociated carboxyl groups of HA were drawn.

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DD - Geochemistry

OECD FORD branch

—

Project

—

Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Radiochimica Acta

ISSN

0033-8230

e-ISSN

—

Volume of the periodical

97

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

9

Pages from-to

—

UT code for WoS article

000268325400002

EID of the result in the Scopus database

—