. Electronic apparatus for biological research . Figure Arrangement for measuring with microelectrodes commonly used for physiological experiments are of Ag-AgCl-Ringer. The Ringer can be made up with 2-3 per cent agar and pairs of electrodes kept together. One electrode is introduced into the fluid of the tissue bath and the other connected to the microelectrode filled with 3 M potassium chloride or Ringer's fluid. In this way fluid junction and electrode potentials are kept at minimal values {Figure ). Silver chloride working electrodes can be prepared in any size or shape required
. Electronic apparatus for biological research . Figure Arrangement for measuring with microelectrodes commonly used for physiological experiments are of Ag-AgCl-Ringer. The Ringer can be made up with 2-3 per cent agar and pairs of electrodes kept together. One electrode is introduced into the fluid of the tissue bath and the other connected to the microelectrode filled with 3 M potassium chloride or Ringer's fluid. In this way fluid junction and electrode potentials are kept at minimal values {Figure ). Silver chloride working electrodes can be prepared in any size or shape required and are made from silver wire or platinum electrolytically coated with silver. Silver halide electrodes have been discussed recently by Janz and Taniguchi^^. The commonest form of Ag-AgCl electrode has a 'plum' or purple coloured surface and is relatively stable if carefully prepared with respect to current density and purity of solutions and metals. Silver is deposited on to platinum in a 1 per cent solution of potassium silver cyanide, and the electrode must be washed at least 12 hours in running water to 548
Size: 2489px × 2008px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodiversity, bookleafnumber596
