Law of mass spectra analysis is to pass what the qualitative carry on one's shoulder of ion of pair of the sample that be measured compares to determine the method of a kind of analysis that will undertake an analysis. The sample that is analysed wants ionization above all, use different ion to be in next of the athletic behavior of electric field or magnetic field different, compare ion by qualitative carry on one's shoulder (M/z) part and get mass spectra, pass the mass spectra of sample and pertinent information, can get the qualitative and mensurable result of sample.
From J.J. Thomson makes the first mass spectrograph, arrive to already had now nearly 90 years, inchoate mass spectrograph basically is to be used undertake isotropy determines with inorganic ultimate analysis, 20 centuries begin to be used at organic matter analysis after 40 time, 60 time appeared gas phase color atlas - mass spectra couplet uses instrument, make the applied domain of mass spectrograph greatly patulous, begin to make the important instrument that organic matter analyses. The application of the computer makes mass spectra analysed a law to produce saltant change again, make its technology more mature, use more convenient. A few new mass spectra technologies appeared again after 80 time, be like source of ion of report of fast atomic bombard, matrix assists source of laser desorption ionization, source of electric sparge ionization, source of atmosphere chemistry ionization, and subsequently and the fluid photograph color atlas with the mature comparison that come - mass spectra couplet uses instrument, mass spectrograph of inductive coupling plasma, mass spectrograph of rich commutation establishing a part of a historical period. These new ionization technologies and new mass spectrograph make mass spectra analysis obtained great progress again. At present law of mass spectra analysis already applied at science of detect of chemical, chemical industry, material, environment, geological, the sources of energy, medicaments, punishment, life, sports medicine to wait for each domains widely.
Mass spectrograph sort is very much, working principle and applied limits also have very big different. From applied angle, mass spectrograph can divide for below a few kinds:

Organic mass spectrograph: Because apply a characteristic to differ to divide again,be:

Gas phase color atlas - mass spectra couplet uses instrument (GC-MS) . In this kind of instrument, as a result of mass spectrograph working principle differs, have gas phase color atlas again - 4 extremely mass spectrograph, gas phase color atlas - flight time mass spectrograph, gas phase color atlas - ionic trap mass spectrograph.

Fluid photograph color atlas - mass spectra couplet uses instrument (LC-MS) . Same, color atlas of photograph having liquid - 4 implement extremely mass spectrograph, fluid photograph color atlas - ionic trap mass spectrograph, fluid photograph color atlas - flight time mass spectrograph, and various fluid photograph color atlas - mass spectra - mass spectra couplet uses instrument.
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