期刊
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
卷 63, 期 8, 页码 885-888出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sab.2008.03.018
关键词
copper; solid phase extraction; flame atomic absorption spectrometry; octaclecyl bonded silica disk; Schiff base
类别
A simple, selective and reliable method for rapid extraction and determination of trace amounts of Cu (II) ions from aqueous samples using octaclecyl-boncled silica membrane disks modified with bis-(3-methoxy salicylaidehyde)-1.6-diaminohexane and flame atomic absorption spectrometry (FAAS) is presented. Extraction efficiency, the influence of pH, flow rates, amount of ligand, and type and least amount of cluant were investigated. The linear dynamic range of the proposed method for Cu (II) ions was found in a wide concentration range of 1.0 (+/- 0.2)-150 (+/- 2) mu g l(-1). The detection limit and preconcentration factor of this method were found 30.0 ( 0.7) ng 1-1 and 100 respectively. The reproducibility of the procedure is at the most 2.0%. The effects of various cationic interferences on the percent recovery of copper ion were studied. The method was used to the recovery of copper ion from different synthetic, alloys and biological samples. (c) 2008 Elsevier B.V. All rights reserved.
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