Filtering processing method for signals of triple quadrupole mass spectrometer system

Abstract

The invention provides a filtering processing method for signals of a triple quadrupole mass spectrometer system, and the method comprises the steps: obtaining noise information of the triple quadrupole mass spectrometer system in a non-working state and a working state, so as to obtain fixed noise frequency distribution information and self-oscillation noise frequency distribution information of the mass spectrometer system; performing correction filtering processing on a detection signal of the first mass spectrum detection operation by using the two noise frequency distribution information; and according to the signal frequency distribution range of the preprocessed detection signal after correction filtering processing, the sample detection time of the next mass spectrum detection operation of the mass spectrometer system is adjusted, so that synchronous filtering processing of self-oscillation interference noise and environmental interference noise can be performed on the detection signal output by the mass spectrometer system. And moreover, by adjusting the sample detection time of the mass spectrometer system, comprehensive and accurate sample mass spectrum detection can be carried out in the shortest time, and noise interference of a mass spectrum detection result is reduced, so that the detection accuracy and reliability of the mass spectrometer are improved.

Description

technical field [0001] The invention relates to the technical field of mass spectrometer signal processing, in particular to a filtering and processing method for triple quadrupole mass spectrometer system signals. Background technique [0002] The triple quadrupole mass spectrometer has the characteristics of high sensitivity, fast analysis speed and small sample consumption, and is widely used in the fields of medicine and biological analysis. After the sample is ionized by electrospray, it enters multiple detection channels of the triple quadrupole mass spectrometer for mass spectrometry analysis, so that different components of the sample can be simultaneously detected and analyzed, thereby realizing multi-channel analysis of the sample. The circuit board of the ion detector of the triple quadrupole mass spectrometer can convert the ion current corresponding to the sample ion into a counting pulse signal, thereby generating the corresponding detection signal. There is s...

AI Technical Summary

Problems solved by technology

The circuit board of the triple quadrupole mass spectrometer has self-oscillation interference noise inside and the external environment will generate corresponding environmental interference noise during the operation of the circuit board. These noises will inevitably interfere with the detection signal output by the circuit board, thereby reducing the quality of the mass spectrum. The detection accuracy and reliability of the instrument

Images