Using Analyte Protectants and Solvent Selection to Maximize the Stability of Organophosphorous Pesticides during GC/MS Analysis
28 May 2013
This application note evaluates the stability of a number of organophosphorous pesticide residues in several solvents, resulting in the selection of an optimal solvent. It also evaluates the positive effect of several analyte protectants on the recoveries of organophosphorous pesticides during GC/MS analysis using the Agilent 7890A Series GC. Results show that hexane provides the best analyte stability for a wide range of organophosphorous pesticides, and d-sorbitol provided the most consistent improvement in recovery as an analyte protectant.
