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. 2009 Dec 8;42(1):8–20. doi: 10.1093/abbs/gmp101

Table 1.

External and internal solutions used in experiments

Solution Component (mM)
Na+ Ca2+ Cl− OH− HEPES− Cs+ F− Sucrose
External LACSF 155.95 2 154 5.95 4.05a – – 54
HACSF 156 20 190 6 4a – – –
Internal – – 90 3.5 6.5a 183.5 90 –

aThe total concentration of HEPES added to solutions was 10 mM. These values are estimates of HEPES concentrations after balancing the pH to 7.38 by NaOH and CsOH for external and internal solutions, respectively.