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                            [content] => *! A new analysis procedure has been developed for detecting beta-N-methylamino-l-alanine (BMAA), a neurotoxin found in cyanobacteria from both freshwater and marine environments.*! * The method utilizes cation-exchange resin to concentrate BMAA from cyanobacterial samples, achieving a high recovery rate.*! * Liquid chromatography coupled with electrospray ionization mass spectrometry effectively measures BMAA levels, with a quantitation limit of 0.5 ng.*!
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