| Solution 1 HBS | Solution 2 I Ca buffer | Solution 3 I Na buffer | Solution 4 AP buffer* |
---|---|---|---|---|
NaCl (mM) | 140 | Â | 20 or 40 | 145 |
KCl (mM) | 2.5 | Â | Â | 5 |
CaCl2 (mM) | 2.5 | 2.5 | 1 | 2 |
MgCl2 (mM) | 1 | 1 | 3 | 1 |
HEPES (mM) | 10 | 10 | 10 | 10 |
MES (mM) | Â | Â | Â | 10 |
TEA (mM) | Â | 140 | 120 or 100 | Â |
CsCl (mM) | Â | 5 | Â | Â |