A method for the analysis of isotope signatures and the mass analysis

摘要

The method (100) in a mass analysis system (2) for the analysis of isotope signatures, wherein the mass analysis system (2) is a chromatography module (4), a ionization (10), a mass separation module the first stage (12), a collision cell module (14), a mass separation module second stage (16), a detector (18) and an electronic device (6) having a memory (8), andthe method comprising:Carrying out a first mass spectrometry process with the mass analysis system (2) andIt is being hauled in, (110) of a plurality of mass intensity values, which correspond to a plurality of masses, by means of the electronic device (6),Comparing (120) of the plurality of mass intensity values by means of the electronic device (6) with at least one criterion, in order to determine whether any mass of the plurality of masses is of interest, wherein said at least one criterion isotopic conditions and / or mass differences between isotopes the same compound, and wherein the criterion of the differences in mass a first difference in weight (220, 320) between a first mass (210, 212) and a second mass (230, 232), and a second difference in weight between the first mass (212) and a third mass (242), and wherein the criterion of isotopic conditions a first ratio (330) between an intensity of the first mass value (210, 211, 213) and an intensity of the second mass value (230, 231, 233) and a second ratio (360) between the intensity of the first mass value (213) and an intensity of a third mass value (243); and ..