Bio-Sorption and Speciation of Arsenic Using Renewable Cell-Column in a Lab-on-Valve System with Detection by ETAAS

摘要：

A new method using renewable cell-column in a lab-on- valve (LOV) system for arsenic speciation with detection by electrothermal atomic absorption spectrometry (ETAAS) was presented. Live HeLa cells immobilized on the surface of micro-carrier beads (Sephadex G-50) were introduced into a LOV system to pack a micro-column for As(III)/As(V) preconcentration. Large discrepancy of sorption efficiencies for As(Ⅲ) and As(Ⅴ) on the cell-column were obtained by varying pH within a range of pH 1-9, which facilitates the speciation of arsenic.

关键词： Lab-on-Valve Bio-sorption Speciation Arsenic Renewable cell-column

作者: Ai-Mei Zou Wen-Xing Wang Xu-Wei Chen Jian-Hua Wang

作者单位: Research Center for Analytical Sciences, Northeastern University, Shenyang, China Institute of Biological Technology, Northeastern University, Shenyang, China

会议类型: 国际会议

会议名称: The First Shenyang International Colloquium on Micrifluidics(首届沈阳国际微流控学术论坛)

会议地点: 沈阳

会议语种:英文

页码: 151-152

在线出版日期: 2007-10-21（万方平台首次上网日期，不代表论文的发表时间）