HEKA Elektronik EPC 10 USB, Hardware Manual, Page: 57 / 81

8.7 Bath Electrode 51
The body of the electrode is a 1 ml plastic syringe body that has been heated and pulled to form a small, bent
tip. The electrode proper is a chlorinated Ag wire that is first inserted with the plunger into the fluid-filled body;
then hot agar is sucked into the tip by withdrawing the plunger partially. The filling solution can be a typical bath
solution or something similar, such as 150 mM NaCl. More concentrated salt solutions are not necessary, and they
can leak out, changing the composition of the bath solution.
http://www.heka.com