Data-processing system for chromatograph mass spectrometry

摘要

In processing chromatographic data, collected by performing a measurement for each of the segments which respectively define time ranges, a system determines whether there is any boundary sandwiched between two temporally continuous segments whose measurement modes are the same and which has the same m/z value designated by an operator to be displayed. If such a boundary exists, the measurement mode common to the two neighboring segments across that boundary is identified, and the system determines whether the parameter values corresponding to that measurement mode are the same. If they are the same, the partial chromatograms corresponding to the two segments show a temporal change in the intensity of the same kind of ion. Accordingly, the two neighboring measurement points across the boundary are connected by interpolation to create a chromatogram with no missing portion.

主权项

1. A data-processing system for chromatographic mass spectrometry for creating a chromatogram by processing data repeatedly collected by a chromatograph quadrupole mass spectrometer capable of setting a mass spectrometric measurement condition for each of segments corresponding to a plurality of time ranges continuously or discontinuously set on a time axis, comprising:
a) a memory for storing a parameter value specified as a mass spectrometric measurement condition for each of the segments; b) a determiner for retrieving, from the memory, a predetermined parameter value for each of a pair of continuously located segments, and for determining whether the retrieved parameter values are identical; and c) a chromatogram creation processor for creating a chromatogram by connecting partial chromatograms based on the data collected for each of the aforementioned pair of segments under the corresponding measurement condition, when the determiner has determined that the retrieved parameter values are identical.