| 20120061589 | METHOD AND APPARATUS FOR MEASURING FLUORESCENT MATERIAL IN A LIQUID - A method of measuring the amount of a fluorescent material in a liquid comprising the steps of exciting the fluorescent material and measuring the fluorescent response of the material over a range of wavelengths to determine a response spectrum, identifying the material from the response spectrum and determining the amount of material as a function of the amplitude of the fluorescent response and a calibration factor based upon the identification of the material. | 03-15-2012 |