the membrane potential of the three cells was measured , using the distribution of [ 3h ] tetraphenylphosphonium [ ( 3h ] tpp+ ) across the plasma membrane , and found to be -80.1 , -108.5 and -105.1 mv for j774.2 , ct2 and j7h1 cells , respectively .
C0007603
plasma membrane
C0007634
cells