Patent ID: 6226852
Filing Date: 2001-05-08
Classification: B01J,G01N,Y10T

Abstract:
A method for fabricating a quantitative integrated diffusion vapor-particle sampler (IOVPS) for sampling, detection and quantitation of semi-volatile organic gases, vapors and particulate components, said method comprising steps:a) manufacturing a diffusion chamber comprising at least one elongated tubular device for inlet and outlet of said organic gases, vapors and particulate components,wherein said inlet and outlet are openings positioned at opposite ends of the tubular device; andwherein said inlet is positioned at a lower end and said outlet is positioned at an upper end of the vertically positioned tubular device;b) manufacturing an annular denuder wherein a surface of a denuder annulus is coated with a macroreticular resin agglomerates of randomly packed microspheres of a continuous non-gel porous structure of particles ranging in size from 0.05 to 10 microns;c) positioning at least one coated denuder of step (b) within said tubular device of the diffusion chamber of step (a) wherein the tubular device is concentric to the denuder;d) attaching a cyclone component to the inlet opening of said tubular device, said cyclone component comprising a gas inlet component connected thereto, said gas inlet component connected to a source of sampled gases, vapors or particulate components; ande) attaching a filter component to the outlet opening of said tubular device.