Determination of iron and lead by flame atomic absorption spectrometry after preconcentration with sepiolite

Determination of iron and lead by flame atomic absorption spectrometry after preconcentration with sepiolite

By using a new adsorbent (sepiolite) an adsorptionelution and atomic absorption spectrometric method has been developed for the preconcentration and determination of Fe and Pb. Recoveries of the analytes were 82 ± 3% for Fe and 91 ± 2% for Pb at 95% confidence level. For Cu it was only 5 ± 1%. The r...

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Veröffentlicht in:Analytical and bioanalytical chemistry 1997-02, Vol.357 (3), p.351-353
Hauptverfasser: TÜKER, A. R, BAG, H, ERDOGAN, B
Format: Artikel
Sprache:eng
Schlagworte:
Absorption
Absorption spectroscopy
Analytical chemistry
Applied sciences
Atomic absorption spectroscopy
Chemistry
Confidence intervals
Copper
Ethylenediaminetetraacetic acids
Exact sciences and technology
Iron
Lead
Metals. Metallurgy
Recovery
Sepiolite
Spectral analysis
Spectrometric and optical methods
Spectrometry
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Zusammenfassung:By using a new adsorbent (sepiolite) an adsorptionelution and atomic absorption spectrometric method has been developed for the preconcentration and determination of Fe and Pb. Recoveries of the analytes were 82 ± 3% for Fe and 91 ± 2% for Pb at 95% confidence level. For Cu it was only 5 ± 1%. The recovery of iron could be increased to about 97 ± 1% by complexing with EDTA, the recovery of copper only to 57 ± 2%. The optimised method was applied to the determination of lead in metal materials (e.g. brass).
ISSN:0937-0633
1618-2642
1432-1130
1618-2650
DOI:10.1007/s002160050166