The paper introduced the MS analysis method and discusses the design and application of the expert system for MS analysis based on the opening and expansion structure of MATLAB language.

They also separated out the DNA from the bacteria and analyzed its composition using a technique called high-resolution secondary ion mass spectrometry; the isolated DNA contained arsenic.

Hidden age messages of pyrolysis mass spectra data of lacquer film by cluster analysis method were investigated and discussed. The stability of experimental factor influenced on analysis result.