Low oxygen transmission imaging system

Details Low oxygen transmission imaging system Low oxygen transmission imaging system

G - Physics

01

N

G01N 15/00 (2006.01) G01N 15/08 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2151509

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.

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