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2014 | 2 | 1 |
Tytuł artykułu

Evaluation of dispersive liquid-liquid microextraction for the determination of cobalt and cadmium by flame atomic absorption spectrometry: application in water and food samples

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Dispersive liquid-liquid microextraction (DLLME) was applied to the separation and preconcentration of Cd(II) and Co(II) from water and food samples. The influence of the following analytical parameters on the quantitative recoveries of cadmium and cobalt were investigated: pH, extraction solvent volume, dispersing solvent volume and type, and concentration of chelating agent. Under the optimized conditions, the detection limits were 2 μg L-1 and 13 μg L-1 for Cd(II) and Co(II), respectively. The proposed method was validated by the analysis of certified samples and has been applied to the determination of these ions in environmental water samples, with recoveries of 98 – 101% for Co(II) and 94 – 120% for Cd(II). In food samples the recoveries fell between 100 – 110% and 101-120% for Co(II) and Cd(II), respectively.
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Wydawca

Czasopismo
Rocznik
Tom
2
Numer
1
Opis fizyczny
Daty
otrzymano
2014-01-20
zaakceptowano
2014-07-15
online
2014-10-09
Twórcy
  • Department of Analytical
    Chemistry, Faculty of Sciences, University of Málaga, 29071, Málaga,
    Spain
  • Department of Analytical
    Chemistry, Faculty of Sciences, University of Málaga, 29071, Málaga,
    Spain, fsanchezr@uma.es
Bibliografia
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  • [20] Berijani, S.; Assadi, Y.; Anbia, M.; Hosseini, M.R.M.; Aghaee,E. Dispersive liquid-liquid microextraction combined with gaschromatography-flame photometric detection: very simple,rapid and sensitive method for the determination of organphosphorus pesticides in water. J. Chromatogr. A, 2006, 1123,1-9.
  • [21] Rezaee, M.; Assadi, Y.; Milani Hosseini, M.R.; Aghaee, E.;Ahmadi, F.; Berijani S. Determination of organic compoundsin water using dispersive liquid–liquid microextraction. JChromatogr A, 2006, 1116, 1–9.
  • [22] Jovanov, P.; Guzsány, V.; Franko, M.; Lazic, S.; Sakac, M.;Saric, B.; Banjac, V. Multi-residue method for determination ofselected neonicotinoid insecticides in honey using optimizeddispersive liquid-liquid microextraction combined with liquidchromatography-tandem mass spectrometry. Talanta, 2013,111C, 125-133.
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_sampre-2014-0002
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