Related Experiment Video
Updated: Jun 25, 2026

A Convenient Method for Extraction and Analysis with High-Pressure Liquid Chromatography of Catecholamine Neurotransmitters and Their Metabolites
Published on: March 1, 2018
Application of an easily water-compatible hypercrosslinked polymeric adsorbent for efficient removal of catechol and
Jianhan Huang1, Kelong Huang, Cheng Yan
1College of Chemistry and Chemical Engineering, Central South University, Changsha, People's Republic of China. xiaomeijiangou@yahoo.com.cn
Abstract:
An easily water-compatible hypercrosslinked resin HJ-1 was developed for adsorbing catechol and resorcinol in aqueous solution in this study. Its adsorption performances for catechol and resorcinol were investigated in aqueous solution by using the commercial Amberlite XAD-4 as a reference. The adsorption dynamic curves were measured and the adsorption obeyed the pseudo-second-order rate equation of Boyer and Hsu. The adsorption isotherms were scaled and Freundlich isotherm model characterized the adsorption better. The adsorption thermodynamic parameters were calculated and the adsorption was an exothermic, favorable, and more ordered process. The fact that the adsorption capacity of catechol was larger than resorcinol and the adsorption enthalpy of catechol was more negative than resorcinol can be explained in terms of the solubility and the polarity of two adsorbates.
Related Concept Videos
Ion Exchange
Ion-Exchange Chromatography
Capillary Electrophoresis: Applications
Capillary zone electrophoresis (CZE) separates ionic components based on their electrophoretic mobility. It has been used to separate proteins, amino acids,...
Extracorporeal Removal of Drugs: Hemoperfusion and Hemofiltration
Precipitation and Co-precipitation
Extraction: Advanced Methods

