The content of free fluorine in toothpaste by potentiometry with a fluorine ion selective electrode is determined.
2
本文通过比较经右胸壁记录的右房电位和经食管记录的左房电位,大致能将游离壁旁路和间隔旁路区分开来。
By comparing right atrial potential recorded on the right anterior chest wall with left atrial potential recorded from the esophagus, we could roughly distinguish free-wall and septal AVBTs.
3
激光共聚焦显微镜检测细胞内游离钙及心肌细胞膜电位的变化。
The changes in the intracellular calcium content and the membrane potential of the myocardial cells were determined by laser confocal microscopy.