Auto Chloridizer Kit (HSE 863)
This chloridation kit provides a simple electrolytic means of coating clean bare Ag wire electrodes with AgCl films reproducibly.
- Simply and easily create Ag-AgCl electrodes reproducibly
- Control of electrolytic current density and duration of chloridation period
- Uses normal saline (NaCl) solution
- Environmentally safe (no oxidizing agents)
The HSE 863 Auto Chloridizer is an electrolytic chloridation unit that provides a simple means for the creation of Ag-AgCl electrodes. It coats the surface of silver electrodes with a water insoluble AgCl film. Unlike a purely chemical procedure, electrolytic chloridation does not involve the use of substances endangering the environment (e.g. oxidizing agents). It uses normal physiological saline solution (NaCl) as the electrolyte.
The counter electrode (cathode) is a carbon-glass ceramic crucible. This material has a very high electrical conductivity, is largely inert physiologically, and is resistant to oxidation and corrosion. There is therefore no contamination of the AgCl film through other free metal ions, as is the case when using stainless steel as a cathode.
The electrolytic chloridation method also offers excellent reproducibility of the AgCl film formation by controlling current density and chloridation time. The auto chloridizer operates with an electronically controlled constant-current source with current monitoring. Errors are indicated through LEDs and an error beep. During the chloridation of a single Ag-AgCl electrode the unit can be operated manually through the start/stop key.
For production of several identical electrodes, such as Ag-AgCl wires for glass microelectrodes, this unit offers simple programming features for repeatable chloridation. First the learning mode is initiated by pressing the repeat key (for longer than 1 second). Then the first electrode is produced manually using the start/stop key. All subsequent electrodes are then prepared automatically according to the manual setting by pressing the repeat key. The end of the chloridation process is indicated by a beep and the current source is automatically switched off.
| Chloridation |
|Electronically controlled constant current source with current monitoring facility. Low, medium, and high selection by switch, corresponding to approximately 5, 10, or 15 mA, respectively.|
| Chloridation |
|Maximum driving voltage of constant current source is approximately 15 V.|
|Start/Stop||Manual operating mode start/stop for chloridation of single electrodes.|
|Repeat||Automatic repetition of manually set chloridation procedure.|
| Dimensions |
H x W x D
|15 x 6 x 12 cm (5.9 x 2.4 x 4.7 in)|
|Weight||750 g (1.7 lb)|