Patent ID: 7964028
Filing Date: 2011-06-21
Classification: B01D,B01J,G01N

Abstract:
1. A method for coating a separations column for separation and analysis of gas-phase explosives and weaponized chemical agents, comprising the steps of: coating a separations column to a preselected uniform thickness with an azeotrope comprising a preselected ratio of a first solvent and at least a second solvent that includes at least one metal β-diketonate polymer and a stationary phase compound dissolved therein, wherein the azeotrope has a boiling point below the first and second solvents, the at least one metal β-diketonate polymer, and the stationary phase compound; and forming a stationary phase comprising the stationary phase compound and a preselected concentration of the at least one metal β-diketonate polymer incorporated therein by removing the azeotrope from within the separations column.