title: Efficient, low-cost gas manifold for use in sample concentration.
mesh_terms: D002621:Chemistry / Q000295:instrumentation*; D002624:Chemistry, Clinical / Q000295:instrumentation; D005069:Evaluation Studies as Topic; D005740:Gases; D009584:Nitrogen; D012997:Solvents; D014867:Water
chemical_list: D005740:Gases; D012997:Solvents; D014867:Water; D009584:Nitrogen