HPLC and GC combined with mass spectrometry allow the immediate determination of components in chamomile extract [16, 128]. Characteristic fragmentation of the compounds can be observed using different ionization methods: Electrospray Ionization (ESI) or Atmospheric Pressure Chemical Ionization (APCI). The MS data can be compared with data of reference substances in experiments or literature (see Figure 10.5).
LC/MS analysis provides quick results concerning the quality of a pure chamomile oil .
Schilcher's flow chart (Figure 4.26, page 89 in Reference 121) comprehensively shows further methods regarding the chemical analysis of chamomile oil.
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