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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

References

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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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