SUMMARY A simple modification to an electronic O2 analyser is described which enables accurate determination of O2 in small gas samples. The response to O2 concentration is linear over the range 0–21% by volume and as little as 0.07 μl of O2 can be detected. Analysis of a 25 μl sample takes 25 s.
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Nigel H. Banks (1986) studied this question.
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