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maintenance_ph [19/06/2019 14:02] pieter [Cleaning] |
maintenance_ph [19/06/2019 14:09] pieter [Cleaning] |
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Depending on the possible contaminants, | Depending on the possible contaminants, | ||
- | * **stuborn | + | * **Stuborn |
- | * **proteinaceous | + | * **Protein-containing |
- | * **protein deposits**: soak the electrode in 1% pepsin in 0.1 M HCl (Consort article **B231**) | + | * **Inorganic |
- | * **inorganic | + | * **Oil and grease**: rinse the electrode with mild detergent (B530) or methanol. |
- | * **oil and grease**: rinse the electrode with mild detergent (B530) or methanol. | + | * **Salt deposits**: dissolve the deposit by immersing the electrode in 0.1 M HCl for five minutes, followed by immersion in 0.1M NaOH for five minutes, and thorough rinsing with distilled water. |
- | * **salt deposits**: dissolve the deposit by immersing the electrode in 0.1 M HCl for five minutes, followed by immersion in 0.1M NaOH for five minutes, and thorough rinsing with distilled water. | + | |
* **Sulfides**: | * **Sulfides**: | ||