Development of INCAT-GC-MS for analysis of metabolites in urine

Abstract

This paper aims to develop a non-solvent microextraction technique using INCAT (Inside Needle Capillary Adsorption Trap) for GC-MS analysis of volatile metabolites in urine. INCATs with different sorbents were tested, resulting in an INCAT with 3 sorbent layers Chromosorb W+ 20% SE-54, Carbopack X and Carboxen 1000 (1 : 1 : 1), which proved to be the most suitable for differentiating and identifying volatile metabolites in urine samples of patients from those of healthy people.