A source for microhydrated biomolecules

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 mol...

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Bibliographic Details
Published inReview of scientific instruments Vol. 86; no. 7; p. 073103
Main Authors Förstel, M, Neustetter, M, Denifl, S, Lelievre, F, Hergenhahn, U
Format Journal Article
LanguageEnglish
Published United States 01.07.2015
Subjects
Adenine - chemistry
Equipment Design
Gases - chemistry
Microtechnology - instrumentation
Protons
Spectrum Analysis
Sublimation, Chemical
Synchrotrons
Uracil - chemistry
Vacuum
Water - chemistry
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Summary: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.
ISSN:1089-7623
DOI:10.1063/1.4923247