Keywords sodium metabisulfite;rat dorsal root ganglion neuron;whole-cell patch-clamp technique;transient outward potassium current;delayed rectifier potassium current;

• 焦亚硫酸钠;大鼠背根节神经元;全细胞膜片钳技术;瞬间外向钾电流;延迟整流钾电流;