Patent ID: 8467059

Claim:
An apparatus for measuring fluorescence of potable liquids, comprising: a deep-UV light source that generates a light beam; an optical quartz cell; said optical quartz cell being disposed between a pair of plane mirrors so that light from said light source travels through said optical quartz cell several times; a photodetector; a concave mirror for collecting a fluorescence signal; said concave mirror having an optical axis disposed normal to an optical axis of said light beam; a lens having an optical axis disposed normal to said optical axis of said light beam; said concave mirror and said lens being positioned on opposite sides of said optical quartz cell; a fluorescence detector disposed in optical alignment with said concave mirror and said lens; a gated integrator and boxcar averager disposed in electrical communication with said fluorescence detector; an oscilloscope in electrical communication with said gated integrator and boxcar averager; a data acquisition computer in electrical communication with said gated integrator and boxcar averager; whereby said data acquisition computer acquires fluorescence data from said quartz sample cell; and whereby said oscilloscope provides visual images of said fluorescence data from said quartz sample cell.