Paper Title:
Adsorption of Hg (II) in Biological and Environmental Samples onto Dithizone-Anchored Organobentonite
  Abstract

A new method for the determination of traces of mercury in environmental and biological samples is described. The present methodology combines determined using a hydride generation-atomic absorption spectrometry (HG-AAS) with pre-concentration/separation of the analyte on dithizone-anchored organobentonite (D-O-bentonite). Optimal experimental conditions for the adsorption of the Hg, including pH, contact time, eluent concentration and volume and co-existing ions have been studied. The result showed that the mercury could be adsorbed on the D-O-bentonite. The adsorbed quantitively was affected by the pH value of medium and contact time. In the medium of pH 5.0, the adsorption time was 15 min, and capacity of adsorption was 23.2 mg·g-1. The mercury adsorbed on the sorbent could be completely eluated by using 3 mol·L-1 HCl. The adsorption agent has been applied to the pre-concentration/separation of mercury in surface water and human hair samples with satisfied results.

  Info
Periodical
Advanced Materials Research (Volumes 230-232)
Edited by
Ran Chen and Wenli Yao
Pages
888-891
DOI
10.4028/www.scientific.net/AMR.230-232.888
Citation
D. Zhang, Y. L. Zhang, "Adsorption of Hg (II) in Biological and Environmental Samples onto Dithizone-Anchored Organobentonite", Advanced Materials Research, Vols. 230-232, pp. 888-891, 2011
Online since
May 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Dong Zhang, Chun Li Zhang
Abstract:Nanometer barium-stroutium titanate immobilized on aluminum oxide (ABST) was prepared by the citric acid sol–gel method and characterized by...
682
Authors: Hai Lan Huang, Guo Ming Wang, Rong Jun Qu, Xu Bo
Abstract:A novel chelating resin, crosslinking polystyrene-supported glucosamine (PS-GA), was prepared and its static adsorption properties for Ag(Ⅰ)...
478
Authors: Zhao Du, Bin Bin Yang, Er Hong Duan, Bin Guo
Chapter 7: Pollution Control Project (Air, Water, Solid)
Abstract:In this work, the breakthrough curves of styrene in fixed beds packed separately with hydrochloric acid-modified sepiolite were determined....
2058
Authors: Xuan Liang, Xue Gang Luo, Xiao Yan Lin, Qiang Mei
G. Others
Abstract:Low cost industrial and agricultural by-products are promising materials for water pollution treatment such as removal of heavy metals. This...
472
Authors: Zheng Jun Gong, Wenbo Zhou, Zhong Ping Qiu
Chapter 7: Pollution Control (Air, Water, Solid)
Abstract:In this study, removal of copper(Ⅱ) from aqueous solutions was examined using corn stalk. In the batch mode adsorption studies, the effects...
1950