Apparatus and Method for Processing Mass Spectrum

A mass spectrum processing method comprising the steps of:

• computing a first degree of similarity between a first representative value array that represents a target mass spectrum obtained by mass spectrometry of a sample and a first corresponding value array that is selected from a standard mass spectrum in a library according to a corresponding relationship with the first representative value array;
• computing a second degree of similarity between a second representative value array that represents the standard mass spectrum and a second corresponding value array that is selected from the target mass spectrum according to a corresponding relationship with the second representative value array;
• and
• judging that the target mass spectrum is a composite mass spectrum derived from a plurality of compounds, or providing information indicating the possibility that the target mass spectrum is the composite mass spectrum, based on the first degree of similarity and the second degree of similarity.

A non-transitory storage medium storing a program to be executed in an information processing device, the program comprising:

• a function of computing a first degree of similarity between a first representative value array that represents a target mass spectrum obtained by mass spectrometry of a sample and a first corresponding value array that is selected from a standard mass spectrum in a library according to a corresponding relationship with the first representative value array;
• a function of computing a second degree of similarity between a second representative value array that represents the standard mass spectrum and a second corresponding value array that is selected from the target mass spectrum according to a corresponding relationship with the second representative value array;
• and
• a function of judging that the target mass spectrum is a composite mass spectrum derived from a plurality of compounds, or providing information indicating the possibility that the target mass spectrum is the composite mass spectrum, based on the first degree of similarity and the second degree of similarity.