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2014 | 2 | 1 |
Article title

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

Content
Title variants
Languages of publication
EN
Abstracts
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.
Publisher

Year
Volume
2
Issue
1
Physical description
Dates
accepted
15 - 7 - 2014
received
20 - 1 - 2014
online
9 - 10 - 2014
Contributors
  • 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
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.-psjd-doi-10_2478_sampre-2014-0002
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