... 2. have 2,3,4 channels for choice online solvent degasser Introductionin HPLC analysis, if mobile phase has gas, will have ... /liquid separation membrane technology, use imported sensor, could automatically start vacuum pump.Specifications: Number of channels 2, 3 & 4 Internal Volume ... 8Gas output content(ppm)About 1.8About 4 Online solvent degasser DG series