The mass analysis data processing unit of qualitative analysis

摘要

A kind of device is qualitative for handling mass spectrometric data, in which: the similarity between a kind of peak pattern, the sample and known mass spectrum for the target unknown materials that mass spectrum obtains specifically are calculated (S4); And when similarity is in 80-60% (" no " S6), signal intensity ratio the characteristic and material-specific of two m/z calculated and with standard value (S7, S8). It is then very possible, therefore target substance is the material-specific when intensity ratio is above standard value. Therefore, in this case, determine that material-specific is included in sample (S10) and is similar in similarity at or above 80%. Before the determination, determine that the sample is actually subjected to curve graph of the mass spectrum from total ion current signal, the total ion current signal graph, which is formed in have to execute to measure based on collected data, is placed at the measurement position (S2, S3) for sample before time point. (S11) is determined when sample introduction error in the figure occurs in not significant peak. Therefore, accurate qualitative analysis can be in bulk to aim at compared to traditional qualitative analysis exclusively according to similitude.