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Träfflista för sökning "AMNE:(NATURAL SCIENCES Chemistry Environmental chemistry) ;pers:(Knutsson Jesper 1973);pers:(Knutsson Pavleta 1980)"

Search: AMNE:(NATURAL SCIENCES Chemistry Environmental chemistry) > Knutsson Jesper 1973 > Knutsson Pavleta 1980

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1.
  • Arpadjan, S., et al. (author)
  • Speciation analysis of thallium in water samples after separation/ preconcentration with the EmporeTM chelating disk
  • 2011
  • In: International Journal of Environmental Analytical Chemistry. - : Informa UK Limited. - 0306-7319 .- 1029-0397. ; 91:11, s. 1088-1099
  • Journal article (peer-reviewed)abstract
    • 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.
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2.
  • Knutsson, Jesper, 1973, et al. (author)
  • Evaluation of a passive sampler for the speciation of metals in urban runoff water
  • 2013
  • In: Environmental Sciences: Processes and Impacts. - : Royal Society of Chemistry (RSC). - 2050-7895 .- 2050-7887. ; 15:12, s. 2233-2239
  • Journal article (peer-reviewed)abstract
    • Metals in urban runoff water need to be monitored in order to estimate fluxes and assess their impact on the aquatic environment. Passive sampling is a useful and reliable emerging tool for measuring time averaged concentrations of metals in water bodies. This paper describes the deployment of a passive sampler to measure Cu, Ni and Zn in an urban runoff water treatment facility. The concentrations derived from the passive samplers are compared to concentrations obtained from an automated water sampler which provides pooled spot water samples and to model predictions from the visualMINTEQ computer speciation code. Results show that visualMINTEQ predictions partly describe the metal speciation in non-equilibrium systems. In addition we conclude that passive samplers are useful for monitoring and characterization of metal speciation under chemodynamic conditions. © 2013 The Royal Society of Chemistry.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Knutsson, Jesper... (2)Undo refine
Knutsson, Pavlet... (2)Undo refine
Rauch, Sebastien, 19 ... (1)
Arpadjan, S. (1)
Pettersson, Thomas, ... (1)
Morrison, Greg, 1960 (1)
University
Chalmers University of Technology (2)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (2)

Year

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