Author : Müşerref Yersel
Publisher :
ISBN 13 :
Total Pages : 74 pages
Book Rating : 4.:/5 (416 download)
Book Synopsis Separation of Trace Antimony and Arsenic Prior to Hydride Generation Atomic Absortion Spectrometric Determination by : Müşerref Yersel
Download or read book Separation of Trace Antimony and Arsenic Prior to Hydride Generation Atomic Absortion Spectrometric Determination written by Müşerref Yersel and published by . This book was released on 2005 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 (æg l-1) concentrations under the experimental conditions employed. It has been shown that mordenite adsorbs Sb(III) quantitatively, even at a concentration of 1000 æg 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.
