Patent ID: 7238328
Filing Date: 2007-07-03
Classification: G01N,Y02A

Abstract:
1. A photolytic NO 2 converter for converting NO 2 present in a gas sample into NO, comprising: a body including a reaction chamber that possesses diffuse reflective properties located substantially within said body, said reaction chamber possessing at least one aperture, said reaction chamber being highly reflective, having a reflective efficiency of at least 0.95 for light in the ultraviolet wavelength range; a reaction chamber inlet in communication with said reaction chamber for transporting a gas sample into said reaction chamber; a reaction chamber outlet in communication with said reaction chamber for transmitting a processed gas sample out of said reaction chamber; and at least one low-power light-emitting diode (LED) configured to produce UV wavelength radiation in the range of 350–420 nm optimally situated at the overlap of high NO