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Title: Separation of trace antimony and arsenic prior to hydride generation atomic absortion spectrometric determination
Authors: Eroğlu, Ahmet Emin
Yersel, Müşerref
Issue Date: 2005
Publisher: Izmir Institute of Technology
Abstract: A separation method utilizing a synthetic zeolite (mordenite) was developed in order to eliminate the gas phase interference of Sb(III) on As(III) during quartz furnace hydride generation atomic absorption spectrometric (HGAAS) determination. The efficiency of the proposed separation method in the reduction of suppression effects of several metal ions on As(III) signal was also investigated. Among the volatile hydride forming elements and their different oxidation states tested (Sb(III), Sb(V), Se(IV), Se(VI), Te(IV), and Te(VI)), only Sb(III) was found to have a signal depression effect even at low (µg l-1) concentrations under the experimental conditions employed. It has been shown that mordenite adsorbs Sb(III) quantitatively, even at a concentration of 1000 µg l-1, at pHs greater than 2, and also, it reduces the initial concentrations of the metal ions to lower levels which can be tolerated in many studies. The adsorption of Sb(III) on mordenite follows the Freundlich isotherm and is endothermic in nature.
Description: Thesis (Master)--İzmir Institute of Technology, Chemistry, İzmir, 2005
Includes bibliographical references (leaves: 35-37)
Text in English; Abstract: Turkish and English
xi, 37 leaves
Appears in Collections:Master Degree / Yüksek Lisans Tezleri

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