| http://www.w3.org/ns/prov#value | - The gas channels at this point are preferably somewhat larger in dimension, for example 200-600 ??m, preferably 250-500 ??m, and more preferably 300-400 ??m, and converge with the fluid sample channel at an acute included angle, preferably from 15-45???, more preferably 20-40???, and most preferably ca. 30???.
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