Method of detecting the permeability of an object to oxygen

Details Method of detecting the permeability of an object to oxygen Method of detecting the permeability of an object to oxygen

G - Physics

01

N

G01N 15/08 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2188436

A method of detecting the permeability of an article to oxygen is disclosed. A fluorescent redox indicator, preferably riboflavin, is dispersed in a carrier and placed on an impermeable substrate. The article to be measured is placed adjacent to the carrier. Residual oxygen is removed, the redox indicator is photoreduced, the article and carrier are exposed to oxygen, and the indicator is exposed to UV light.

L'invention concerne un procédé de détection de la perméabilité d'un objet à l'oxygène. Un indicateur redox fluorescent, de préférence la riboflavine, est dispersé dans un véhicule et placé sur un substrat imperméable. L'article à mesurer est placé à côté du véhicule. L'oxygène résiduel est retiré, l'indicateur redox subit une photoréduction, l'article et le véhicule sont exposés à l'oxygène, et l'indicateur est exposé à la lumière ultraviolette.

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