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| WLN-CA.W.15.1 | Determination of sulphite in water by means of the discrete analyser | in-house method |
| Principle: | The sulphite present in the water reacts in a buffered solution with 4,4-dithiodipyridine, in which an organic thiosulphate is formed and a coloured thiol anion is separated. The intensity of the colour is measured at 340 nm and is a measure for the sulphite content. | |
| Determination: | Sulfite | |
| Performance characteristics: | ||
| Reporting limit: | 0.1 mg/l, matrix dependent | |
| Sustainability: | 2 days | |
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| [ 04-12-2022 23:16:01 ] |