title: A flask for preparation of standards in gas chromatography.
abstract: An inexpensive modification to the stopcock of a conventional gas-sampling bulb permits convenient preparation of standards for gas chromatography.
mesh_terms: D000777:Anesthetics / Q000032:analysis; D002849:Chromatography, Gas / Q000295:instrumentation* / Q000379:methods; D011138:Polytetrafluoroethylene
chemical_list: D000777:Anesthetics; D011138:Polytetrafluoroethylene