A method and apparatus for detecting and identifying biological pathogens in a sample includes exposing the sample to an excitation radiation and thereby generating an emission radiation, synchronously scanning the wavelength of the excitation radiation and the wavelength of the emission radiation to...http://www.google.de/patents/US5938617?utm_source=gb-gplus-sharePatent US5938617 - Advanced synchronous luminescence system for the detection of biological agents and infectious pathogens