Solution | |||||||
---|---|---|---|---|---|---|---|
1 | 2 | 3 | 4 | 5 | 6 | 7 | |
NaCl | 140 | 140 | 140 | 140 | 140 | 0 | 0 |
KCl | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
HEPES | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Dextrose | 15–20 | 15–20 | 15–20 | 15–20 | 15–20 | 15–20 | 15–20 |
CaCl2 | 2 | 2 | 2 | 2 | 0 | 0 | 10 |
MgCl2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
CdCl2 | 0 | 0.1 | 0 | 0.1 | 0 | 0 | 0 |
TTX | 0 | 0 | 2 × 10−4 | 2 × 10−4 | 0 | 0 | 0 |
EGTA | 0 | 0 | 0 | 0 | 5 | 0 | 0 |
Choline chloride | 0 | 0 | 0 | 0 | 0 | 140 | 140 |
-
All values are in mM. Solution 1 is normal solution. HEPES, N-2-hydroxyethylpiperazine-N′-2-ethanesulfonic acid; TTX, tetrodotoxin; EGTA, ethylene glycol-bis (β-aminoethyl ether)-N,N,N′,N′-tetraacetic acid.