title: A source for microhydrated biomolecules.
abstract: We describe the construction of an apparatus for the production of a molecular jet of microhydrated biomolecules. Our design uses a water reservoir producing water vapour, which then passes through a separate reservoir containing a vapour of a sublimated biomolecule. The mixture coexpands into a molecular beam apparatus through a conical nozzle. Mass spectra showing water-adenin and water-uracil complexes are shown as typical examples. Suitable expansion conditions are reached without the use of an inert carrier gas.
authors.affiliation: Max-Planck-Institut für Plasmaphysik, Wendelsteinstraße 1, 17491 Greifswald, Germany.
authors.forename: M
authors.initials: M
authors.lastname: Förstel
authors.affiliation: Institut für Ionenphysik und Angewandte Physik, Technikerstraße 25, 6020 Innsbruck, Austria.
authors.forename: M
authors.initials: M
authors.lastname: Neustetter
authors.affiliation: Institut für Ionenphysik und Angewandte Physik, Technikerstraße 25, 6020 Innsbruck, Austria.
authors.forename: S
authors.initials: S
authors.lastname: Denifl
authors.affiliation: Max-Planck-Institut für Plasmaphysik, Wendelsteinstraße 1, 17491 Greifswald, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Lelievre
authors.affiliation: Max-Planck-Institut für Plasmaphysik, Wendelsteinstraße 1, 17491 Greifswald, Germany.
authors.forename: U
authors.initials: U
authors.lastname: Hergenhahn
mesh_terms: D000225:Adenine / Q000737:chemistry; D004867:Equipment Design; D005740:Gases / Q000737:chemistry; D055616:Microtechnology / Q000295:instrumentation*; D011522:Protons; D013057:Spectrum Analysis; D000074706:Sublimation, Chemical; D017356:Synchrotrons; D014498:Uracil / Q000737:chemistry; D014618:Vacuum; D014867:Water / Q000737:chemistry
chemical_list: D005740:Gases; D011522:Protons; D014867:Water; D014498:Uracil; D000225:Adenine