Research Article
Randomised, Double Blind, Placebo-Controlled Trial of Echinacea Supplementation in Air Travellers
Table 1
Alkylamide content per Echinacea tablet used as trial medication.
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a Alkylamide concentrations were determined by liquid chromatography mass spectrometry using a Shimadzu HPLC system coupled to a Shimadzu 2010EV single quadrupole mass spectrometer operating with an APCI interface as described for a previous batch [25]. |