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How to measure O2 in a chamber?

  1. Apr 23, 2010 #1
    Dear all:

    I want to make a chamber as O2-free. The chamber is not perfectly sealed, so it has some small holes. I have used N2 gas (by pumping N2 from one input and escaping of O2 from holes in junctions). Now, I want to measure the amount of remaining O2 inside chamber. How can I do that? Is there any meter or other non-destructive! way?

    Thank you very much,
  2. jcsd
  3. Apr 24, 2010 #2


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    Yes, there are electrochemical sensors that measure the partial pressure of oxygen; they are easily found with an Internet search.
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