Graphite Oxide Solid-Phase Extraction of Copper(II) and Lead(II) from Water, Food, Tobacco, and Hair

Graphite oxide was synthesized and used as a solid-phase adsorbent for Cu(II) and Pb(II) in various samples. The characterization of the material was performed by X-ray diffraction, infrared spectroscopy, and Brunauer-Emmet-Teller measurements. The adsorption capacity of graphite oxide was 26.4 mg g...

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Bibliographic Details
Published in:Analytical letters 2016-09, Vol.49 (14), p.2193-2206
Main Authors: Yavuz, Emre, Tokalıoğlu, Şerife, Şahan, Halil, Yılmaz, Betül, Patat, Şaban
Format: Article
Language:English
Subjects:
Copper
flame atomic absorption spectrometry
graphite oxide
lead
solid phase extraction
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Summary:Graphite oxide was synthesized and used as a solid-phase adsorbent for Cu(II) and Pb(II) in various samples. The characterization of the material was performed by X-ray diffraction, infrared spectroscopy, and Brunauer-Emmet-Teller measurements. The adsorption capacity of graphite oxide was 26.4 mg g −1 for Cu(II) and 80.6 mg g −1 for Pb(II). The detection limits of the method were 1.25 µg L −1 for copper and 2.56 µg L −1 for lead. Graphite oxide was used 150 times without any mass loss. A vortexing time of 30 s was sufficient for adsorption and elution contact times.
ISSN:0003-2719
1532-236X
DOI:10.1080/00032719.2016.1147576