Positive DC terminal

For electrophoresis, the paper or gel is saturated with the required buffer at the desired pH. The ends of the paper or gel are placed in a buffer reservoir that contains the buffer with which the paper or gel is saturated and that also have electrodes connecting one end to the positive DC terminal and the other... 

TBL A - Four position, DC terminal block, barrier strip, 30 amp or more McMaster-Carr 7527K24 1... 

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