Method of marking a product, marked product resulting...

Details Method of marking a product, marked product resulting... Method of marking a product, marked product resulting...

G - Physics

01

F

G01F 1/704 (2006.01) G01N 27/26 (2006.01) G01N 27/414 (2006.01) G01N 33/02 (2006.01) G01N 33/15 (2006.01) G01N 33/18 (2006.01)

Patent

CA 2530306

A method and means for identifying the authenticity and the genuine nature of a solid or liquid bulk material, by incorporating a marking composition containing at least one trace ion into the said bulk material, whereby the to~tal concentration of the incorporated trace ions in the market bulk material is chosen to be lower than the corresponding con~centration of the same ions in standard sea water. The authen~ticity and the genuine nature or the adulteration level of the marked bulk material can be tested in-the-field using electro~chemical sensors, and confirmed in the laboratory using a method such as atomic absorption spectroscopy, ion chromatography or mass spectrometry.

L'invention concerne un procédé et un moyen d'identification de l'authenticité de la nature d'un matériau liquide ou solide en vrac. Ce procédé consiste à incorporer une composition de marquage contenant au moins un ion trace dans ledit matériau en vrac, la concentration totale des ions traces incorporés dans le matériau en vrac marqué étant déterminée de sorte à être inférieure à la concentration d'ions correspondante dans de l'eau de mer. L'authenticité de la nature du matériau en vrac marqué, ou son niveau d'adultération, peut être évaluée sur place au moyen de capteurs électrochimiques, puis confirmée en laboratoire par la mise en oeuvre d'un procédé tel que la spectroscopie d'absorption atomique, la chromatographie ionique ou la spectrométrie de masse.

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