Analysis of β-N-methylamino-L-alanine (BMAA) in spirulina-containing supplements by liquid chromatography-tandem mass spectrometry

Table 2 Relative retention times (RRTs) and concentrations (ng/g) measured for AEG, BMAA and DAB in samples and in Cycad control material as analyzed by the RPLC-MS/MS method

*relative to d3-BMAA (RT = 6.60 min).
**internal standard quantitation was used for BMAA, while external calibration.
nd = not detected (LOD = 80 ng/g for BMAA).
Retention times are expressed relative to a d3-BMAA internal standard that was spiked into the individual samples.