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| WLN-CA.W.24.1 | Determination of the carbonate and/or bicarbonate content (titrimetrical) | in-house method |
| Principle: | Carbonate and/or bicarbonate is titrated with hydrochloric acid up to a pH between 4 and 5. The pH of the equivalence point is strongly dependent on the carbon dioxide present. To a lesser extent the temperature and ionicstrength have an influence on the equivalence point. The equivalencepoint is determined with the 1st derivative of the titration curve. | |
| Determination: | P-number | |
| Performance characteristics: | ||
| Matrices qualified by the Dutch RvA: | Drinking water | |
| Reporting limit: | 0.1 mmol/l, matrix dependent | |
| Sustainability: | 1 day | |
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| [ 27-07-2023 23:16:10 ] |