Assertion: d serine | /r/CapableOf | use an lc-ms/ms system
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Source sentences:
text: d-serine, l-serine, and l-glutamate were identified simultaneously from samples of the aCSF taken at different time points using an LC-MS/MS system (1200 s, triplequad 6410, Agilent, Palo Alto, CA, USA) with electrospray ionization in the positive mode.