Device for preparing dissolved substances for mass-spectrometric analysis
AssigneeFinnigan Mat GmbH
InventorCurt Brunnee
Life of this patent
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Abstract
A fraction obtained from a liquid chromatograph column is introduced into a cup-shaped collecting vessel 12 having a centrally apertured funnel-shaped bottom surface 14. A sample holder 13 is removably accommodated in the aperture, and after the evaporation of the fraction solvent the remaining residue 11 collects on or in the holder, which may then be removed and directly introduced into the ionization chamber of a mass spectrometer for further analysis.
Claims15
Device for preparing fractions separated in a liquid chromatograph including substances dissolved in solvents for mass-spectrometric analysis after evaporation of the solvents by direct introduction into an ionization chamber of a mass spectrometer comprising:
- a relatively large dimensioned collecting vessel (12) adapted to hold a separated fraction, and a relatively small dimensioned sample holder (13) removably disposed within said collecting vessel and forming a portion of the inner surface thereof, whereby the sample holder and any substance (11) left therein in the form of a residue after solvent evaporation may be removed from the collecting vessel and directly introduced into a mass spectrometer for further analysis.
Dependencies are inferred from the claim text.