Fig. 2

Representative calibration of a glutamate selective microelectrode array (MEA). Representative MEA calibration prior to in vivo recordings in which only one glutamate selective recording site and one self-referencing site are represented. Aliquots of 250 µM ascorbic acid (AA), 20 µM glutamate (Glu), 2 µM dopamine (DA), and 8.8 µM H₂O₂ are represented by vertical bars on the x-axis