Speciation analysis of thallium in water samples after separation/ preconcentration with the EmporeTM chelating disk
Artikel i vetenskaplig tidskrift, 2011
A simple, reliable and novel solid phase extraction procedure using the Empore chelating disk has been developed for determination of Tl(I) and Tl(III) in environmental water samples by electrothermal atomic absorption spectrometry (ETAAS). The influence of humic acids on separation/preconcentration of thallium species with the Empore chelating disk is investigated. The preconcentration factor and detection limit are 500 and 5 ng L-1, respectively. The recoveries are in the range 93-103% for mineral, pond, sea, snowmelt, waste waters at 28-500 ng L-1 Tl and in the range 82-112% for river waters at 18-28 ng L-1 Tl.
Wastewater
River water
Thallium
Humic acids
Pre-concentration
ETAAS
Chelating disks
Interferences
Biological materials
Water absorption
Seawater
Electrothermal atomic absorption spectrometry
Extraction
Water analysis
Solid-phase extraction
Environmental water samples
Detection limits
Empore chelating disk
Chelation
Water samples
Humic acid
Atomic absorption spectrometry
Speciation analysis
Snowmelt
Iodine
Sewage
Thallium speciation
Absorption spectroscopy
Organic acids
Författare
S. Arpadjan
Sofia University St. Kliment Ohridski
Pavleta Knutsson
Chalmers, Teknisk fysik, Mikroskopi och mikroanalys
Jesper Knutsson
Chalmers, Bygg- och miljöteknik, Vatten Miljö Teknik
International Journal of Environmental Analytical Chemistry
0306-7319 (ISSN) 1029-0397 (eISSN)
Vol. 91 11 1088-1099Drivkrafter
Hållbar utveckling
Ämneskategorier (SSIF 2011)
Analytisk kemi
Miljövetenskap
DOI
10.1080/03067310903359476