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[求助]
2.0%乙醇/氦氣混合氣如何實現(xiàn)呢,乙醇為液體,如何實現(xiàn)與氦氣的混合?
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如題 Some article says ethanol adsorption was carried out for 30 min using a 2.0% ethanol/He gas mixture (1.0 mL/s), as we know, ethanol is liquid, how to realize the gas mixture of ethanol and helium, and guarantee the volume fraction of 2%. Is the gas mixture in the cylinder together or with the help of flowmeter? many thanks for help. |
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