METAL OXIDE-BASED BIOCOMPATIBLE HYBRID SORBENT FOR THE EXTRACTION AND ENRICHMENT OF CATECHOLAMINE NEUROTRANSMITTERS AND RELATED COMPOUNDS, AND METHOD OF SYNTHESIS

摘要

The subject invention concerns metal or metalloid oxide-based sol-gel hybrid sorbent and methods of synthesis. In one embodiment, the sorbent is a ZrO₂ polypropylene oxide based sol-gel. The subject invention also concerns a hollow tube or capillary internally coated with a sorbent of the invention. Sorbent coated tubes and capillaries of the invention can be used in extraction and/or enrichment of samples to be analyzed for catecholamines and related compounds.