When command potential was +70 mV, TEA of different concentration, such as 10 -3 mol/L, 10 -4 mol/L, 10 -5 mol/L, and 10 -6 mol/L, decreased this potassium current 48.37%, 41.21%, 22.15% and 10.47% respectively.

• 当指令电位为＋70mV时，在10－3mol/L、10－4mol/L、10－5mol/L和10－6mol/L各浓度的四乙基铵可使外向钾电流分别降低48.；37%25、41