Determination of iron and lead by flame atomic absorption spectrometry after preconcentration with sepiolite |
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| Authors: | A Rehber Türker Hüseyin Bağ Baki Erdoğan |
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| Institution: | (1) Gazi üniversitesi, Fen-Edebiyat Fakültesi, TR-06500 Ankara, Turkey, TR;(2) Kırıkkale üniversitesi, Fen-Edebiyat Fakültesi, TR-71200 Kırıkkale, Turkey, TR |
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| Abstract: | By using a new adsorbent (sepiolite) an adsorption-elution 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).
Received: 20 February 1996 / Revised: 7 May 1996 / Accepted: 11 May 1996 |
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