Related Experiment Video
Updated: Jun 12, 2026

Removal of Arsenic Using a Cationic Polymer Gel Impregnated with Iron Hydroxide
Published on: June 28, 2019
Removal of selected nuisance anions by Octolig
Dean F Martin1, Christopher L Lizardi, Eileen Schulman
1Institute for Environmental Studies, Department of Chemistry, University of South Florida, Tampa, Florida 33620-5250, USA. dmartin@cas.usf.edu
Abstract:
Octolig, a commercially available immobilized ligand (IMLIG), has been studied for its effectiveness in removing nuisance anions. The material consists of polyethylenediamines covalently linked to high surface-area silica, and has a high affinity for transition metal ions. Previous research indicated that anions could be removed quantitatively from aqueous solutions using the metal derivatives of Octolig as packing in column chromatography. The present study focused on the results with Octolig alone. Quantitative removals (> 99%) were obtained for arsenate, chromate, paramolybdate, selenious acid, and fluoride. Boric acid was not removed by under similar conditions, but previously the copper(II) derivative of Octolig had been partially successful. A mechanism of removal is proposed.
More Related Videos
09:12Selection of Transporter-Targeted Inhibitory Nanobodies by Solid-Supported-Membrane (SSM)-Based Electrophysiology
Published on: May 3, 2021
07:28An Efficient Method for Selective Desalination of Radioactive Iodine Anions by Using Gold Nanoparticles-Embedded Membrane Filter
Published on: July 13, 2018
Related Concept Videos
Ion Exchange
Extraction: Advanced Methods
Masking and Demasking Agents
There are many masking agents, such as cyanide, fluoride, triethanolamine, thiourea, and 2,3-bis(sulfanyl)propan-1-ol (formerly 2,3-dimercapto-1-propanol), with the masking agent chosen based on the metal...
Ion-Exchange Chromatography
Factors Affecting Solubility
Detergent Purification of Membrane Proteins