LIQUID CHROMATOGRAPH THREE-DIMENSIONAL QUADRUPLE MASS SPECTROMETRY

摘要

PROBLEM TO BE SOLVED: To display each constituent peak of adjacent samples separately by obtaining the outflow time of the samples from the rising edges and falling edges of total ion chromatograms(TIC) or mass chromatograms, integrating their outflow areas, and performing TIC display with any span of time. ;SOLUTION: In a liquid chromatograph three-dimensional quadrupole mass spectroscopy, the separate display of adjacent samples A and B is performed through processes using, for example, the mass spectrum of each sample. The mass spectrum Sa at the peak top tpa of the sample A is obtained, and its TIC is integrated between the rising edge tsa and failing edge tea to store the result as TICa. An integration result TICb on the sample B is similarly obtained. By displaying the stored integration results TICa and TICb, it becomes possible to display an adjacent mixed sample separately. In addition, a method using the outflow time of each sample obtained from any mass chromatogram of the mass spectrum is performed.;COPYRIGHT: (C)1999,JPO