Molecular pulse injection method

For this kind of analyser, a discrete pulse of molecular ions is injected into a field-free drift tube , measuring the time taken for ions to reach the detector (see Figure 3.3). This method of analysis is particularly suited to MALDl ionization methods, and can be used for quite large macromolecules. As before, the separation of molecular ions is on the basis of their mass/charge ratio mjz). 

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