Published 2014 | Version v1
Journal article Metadata-only

Thin film-XRF determination of uranium following thin-film solid phase extraction

Creators

  • 1. Department of Toxicology, Faculty of Veterinary Medicine, University of Tehran (Iran, Islamic Republic of)
  • 2. Department of Chemistry, Payame Noor University, Tehran (Iran, Islamic Republic of)
  • 3. Iranian Mineral Processing Research Center, Ministry of Industry and Mineral, Karaj (Iran, Islamic Republic of)

Description

A sensitive method based on the preconcentration of uranium on modified filter paper (thin film) has been developed to determinate this element in water and soil samples by wavelength dispersive X-ray fluorescence. Uranium (VI) extraction from nitric acid medium by trioctyl phosphine (TOPO) from 100 mL of sample was carried out. The effects of nitric acid concentration, TOPO concentration and sample breakthrough on uranium extraction were investigated in this study. The proposed method provided good linearity from 7 to 1000 μg and the limit of detection (LOD), based on a signal-to noise ratio (S/N) of 3, was 2.5 μg. (author)

Availability note (English)

Available from http://www.scielo.br/pdf/jbchs/v25n6/a13v25n6.pdf

Additional details

Identifiers

URL
http://www.scielo.br/pdf/jbchs/v25n6/a13v25n6.pdf;

Publishing Information

Journal Title
Journal of the Brazilian Chemical Society
Journal Volume
25
Journal Issue
6
Journal Page Range
p. 1086-1090
ISSN
0103-5053
CODEN
JOCSET

INIS

Country of Publication
Brazil
Country of Input or Organization
Brazil
INIS RN
49011806
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
CONCENTRATION RATIO; EXTRACTION; NITRIC ACID; SENSITIVITY ANALYSIS; SIGNAL-TO-NOISE RATIO; SOILS; THIN FILMS; TRIOCTYLPHOSPHINE OXIDE; URANIUM; WATER; X-RAY FLUORESCENCE ANALYSIS
Descriptors DEC
ACTINIDES; CHEMICAL ANALYSIS; DIMENSIONLESS NUMBERS; ELEMENTS; FILMS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; INORGANIC COMPOUNDS; METALS; NITROGEN COMPOUNDS; NONDESTRUCTIVE ANALYSIS; ORGANIC COMPOUNDS; ORGANIC PHOSPHORUS COMPOUNDS; OXYGEN COMPOUNDS; PHOSPHINE OXIDES; PHOSPHINES; PHOSPHORUS COMPOUNDS; SEPARATION PROCESSES; X-RAY EMISSION ANALYSIS