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. 2023 Mar 14;4(2):102168. doi: 10.1016/j.xpro.2023.102168

External recording solution

Reagent (MW = molecular weight in g/mol) Final concentration Amount
Sodium chloride (NaCl, MW = 58.3) 150 mM 8.74 g
Potassium chloride (KCl, MW = 74.6) 4 mM 298 mg
HEPES (MW = 238.3) 10 mM 2.383 g
Glucose (MW = 180.0) 10 mM 1.80 g
Magnesium chloride (MgCl2, MW = 95.2) 1.1 mM 105 mg
Calcium chloride (CaCl2, MW = 111.0) 1.1 mM 122 mg
ddH2O Add for total volume of 1 L
Total N/A 1 L