Mass spectrometric substance identification

Details Mass spectrometric substance identification Mass spectrometric substance identification

2007-09-18

2007-09-18

Crane, Sara (Department: 2811)

Radiant energy

Ionic separation or analysis

Methods

C250S283000, C250S284000

Reexamination Certificate

active

11002961

ABSTRACT:
The invention relates to the identification of substance ions, which are usually generated by electro spray ionization after separation by liquid chromatography or capillary electrophoresis, with the help of libraries with mass spectra. The substance ions are frequently formed not only in a protonated (or deprotonated) form but also as adducts with cations or anions, a fact which complicates identification. The invention involves making identification more accurate by additionally carrying out a determination of the most probable molar mass with the help of adduct patterns.

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patent: 2004/0041089 (2004-03-01), Weimin et al.
UK, Search Report, Apr. 8, 2005.

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