Brain Cortical and Hippocampal Dopamine: A New Mechanistic Approach for Eurycoma longifolia Well-Known Aphrodisiac Activity and Its Chemical Characterization

Figure 1

A representative UPLC-positive ionization MS trace (a) and negative ionization MS trace (b) of the aqueous extract of E. longifolia roots. Peak numbers follow those listed in Table 1 for metabolite identification using UPLC-MS/MS.

(a)

(b)