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. 2022 Sep 21;3(4):101703. doi: 10.1016/j.xpro.2022.101703

Artificial cerebrospinal fluid (aCSF)

Reagent Final concentration Amount
HEPES 10 mM 2.384 g
NaHCO3 21 mM 1.76 g
NaH2PO4 1.2 mM 164 μg
KCl 2.5 mM 185 μg
MgCl2 2 mM 410 μg
CaCl2 2 mM 294 μg
D-glucose 5 mM 999 μg
Glycerol 250 mM 25 mL
ddH2O N/A Up to 1 L
Total N/A 1 L

After dissolving the chemicals in 800 μL ddH2O, measure and adjust the pH and fill up to 1 L. Afterward, filter using a 0.22 μm bottle-top vacuum filter and store the aCSF at 4°C. aCSF can be used until precipitates start to form.