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How to easily detect EVOH


red53560

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I am using a barrier film that has an EVOH layer in the middle and I am looking for ways to test that the layer is actually there.  The EVOH reacts with iodine so I can cut a sample die it then look at the cross section under a microscope but this is tedious and was wondering if anybody had any other suggestions.  I do have some lab equipment but no NMR (I wish :) ).  Any thoughts?  Thanks?

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