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Measuring the pH of an iron gall ink inscription with a purpose made microelectrode.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:28, 2 May 2010 | | 1,066 × 800 (537 KB) | Matijastrlic (talk | contribs) | Measuring the pH of an iron gall ink inscription with a purpose made microelectrode. |
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