Diaphragm type
|
Type of contamination |
Cleaning |
| General |
Precipitates of silver halides and silver sulfides |
Immerse diaphragm for several hours in a solution of 7% thiourea in 0.1 mol/L HCl. |
| |
Proteins, polypeptides |
Immerse diaphragm for several hours in a solution of 1% pepsin in 0.1 mol/L HCl. |
| |
Suspensions, solids, resins, glues, oils, fats |
Clean electrode with suitable solvent |
| Fixed ground joint |
All types of contamination |
Aspirate off reference electrolyte and immerse electrode in the corresponding cleaning solution. |
| Seperable ground joint |
All types of contamination |
Loosen the ground-joint sleeve (using hot water if necessary) and clean according to the type of contamination. |
| Capillary |
Electrolyte flow interrupted |
Apply slight counter pressure to electrolyte refilling opening |
