A solid-state reference electrode has been constructed and tested. Exp
eriments have shown that the reference electrode gives a negligible an
d constant contribution to the measured EMF. The solid-state reference
electrode was used as a reference electrode for an Orion Fluoride (F-
) selective electrode. This cell behaves satisfactorily compared to an
Orion F--combination electrode. The first promising progress has ther
efore been made toward realization of a new solid-state reference elec
trode.