The present invention discloses a portable, reliable, automated and simple device using Spectral Fluorescence Signature technology (SFS) for fast and accurate drug detection, quantification and data storage. The present also discloses a method for using Spectral Fluorescence Signature technology (SFS)...http://www.google.de/patents/US7843556?utm_source=gb-gplus-sharePatent US7843556 - Portable device and method for on-site detection and quantification of drugs