[Manufacturing of K+-potassium microelectrodes for electroretinographic studies]

A method for fabrication of K+-selective microelectrodes for the purposes of elecroretinogram investigations is described. Both one- and two-barrel types of microelectrodes are obtained. The microelectrodes fabricated possess high sensitivity and stability. The values of potassium in corpus vitreous of the frog Rana ridibunda are presented.