Method for securely authenticating an object or a substance by chemical marking or tracing

Abstract From the Canadian patent

The invention concerns a method comprising an identification and an authentication phase including a theoretical identification of an object a spectrophotometric analysis of the object determining a marker used as standard, comparing data concerning said standard marker obtained during the spectrophotometric analysis with said specific data previously stored calculating the correction to be brought to the analysis detecting the presence, absence, intensity of the markers determining the code authenticating the object and emitting a validation or alarm signal as the case may be.