Improved Quantification of the Cyanobacteria Metabolite, Β-Methylamino-l-alanine (BMAA) Using HPLC-MS/MS Detection of Its Dansyl Chloride Derivative Referenced to A15n-Labeled Internal Standard

Historic disagreement regarding the prevalence and abundance of BMAA may be due in part to false-negative results arising from deuterated internal standards and the derivatization conditions used in prior studies.