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.
Speciation analysis
Humic acids
Absorption spectroscopy
Water absorption
Chelation
Solid-phase extraction
Pre-concentration
Water analysis
River water
Sewage
Humic acid
Interferences
Thallium speciation
Atomic absorption spectrometry
Seawater
Water samples
Thallium
Extraction
Environmental water samples
Electrothermal atomic absorption spectrometry
ETAAS
Snowmelt
Organic acids
Detection limits
Chelating disks
Empore chelating disk
Wastewater
Iodine
Biological materials
Författare
S. Arpadjan
Sofijski universitet
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
Analytisk kemi
Miljövetenskap
DOI
10.1080/03067310903359476