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. 2021 Apr 5;2(2):100442. doi: 10.1016/j.xpro.2021.100442

Recording solution for multi-electrode array recordings

Chemical g/L Concentration (mM)
NaCl 7.247 124.0
KCl 0.261 3.50
NaH2PO4-2H2O 0.156 1.00
MgSO4-7H2O 0.320 1.30
CaCl2-2H2O 0.368 2.50
D-(+)-glucose 1.801 10.0
NaHCO3 2.184 26.0

Solutions are made fresh the day of recording in 1.0 L of deionized water and before experimental use. Each stock solution should be stored at 4–10oC for no longer than 2-weeks.