The disclosure relates to methods and apparatus for assessing occurrence of one or more hazardous agents in a sample by performing multipoint spectral analysis of the sample using a portable or hand-held device. Methods of employing Raman spectroscopy and other spectrophotometric methods are disclosed....http://www.google.fr/patents/US7548310?utm_source=gb-gplus-shareBrevet US7548310 - Method and apparatus for compact spectrometer for multipoint sampling of an object
Method and apparatus for compact spectrometer for multipoint sampling of an ...