Figure 3.

MS/MS chromatogram of control sample and product ion mass spectra of plasma samples from rats fed dietary equol (2 mg/mL). The presence of equol glucuronides was determined by monitoring the m/z 417/241 transition using a triple-quadrupole mass spectrometer (4000 QTRAP, ABSCIEX, Framingham, MA, USA) with chromatography details described previously.³⁵