Preconcentration of Copper(II) Using Mesoporous Organo-Silicas and Determination by Flame Atomic Absorption Spectrometry

Journal of the Korean Chemical Society

Ali Moghimi¹ 

关键词: Preconcentration;    Copper;    Mesoporous Organo-Silica;    Solid Phase Extraction;    Flame Atomic Absorption Spectrometry (FAAS);   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

A simple and reproducible method for the rapid extraction and determination of trace amounts of copper( II) ions using mesoporous organo-silicas mesoporous silica and atomic absorption spectrometry is presented. Common coexisting ions did not interfere with the separation and determination. The preconcentration factor was 100 (1 ml elution volume) for a 100 ml sample volume. The limit of detection of the proposed method is 1.0 ng ml-1. The maximum sorption capacity of sorbent under optimum conditions has been found to be 5mg of copper per gram of sorbent. The relative standard deviation under optimum conditions was 2.8% (n=10). Accuracy and application of the method was estimated by using test samples of natural and synthetic water spiked with different amounts of copper(II) ion.

【 授权许可】

Unknown