24-h_urine_samples_edta_ascorbic_acid_suspension
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24-h_urine_samples_edta_ascorbic_acid_suspension [2019/08/28 10:19] hilde created |
24-h_urine_samples_edta_ascorbic_acid_suspension [2019/08/28 10:33] hilde |
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| Addition of small amounts of EDTA to acidified solutions of ascorbic acid, completely protects the vitamin against copper-catalysed aerobic oxidation for over 6 days at room temperature | Addition of small amounts of EDTA to acidified solutions of ascorbic acid, completely protects the vitamin against copper-catalysed aerobic oxidation for over 6 days at room temperature | ||
| - | Dissolve 19.0 g TSP (0.1 M) and 1.25 g DTT with deionized water in a 500-mL volumetric flask and dilute to volume. The solution is stable for 3-4 weeks at 4°C. Dissolve 17.53 g NaCl in deionized water in a 100-mL volumetric flask and dilute to volume (3M). | + | Dissolve Ascorbinezuur and EDTA with deionized water in a 500-mL volumetric flask and dilute to volume. The solution is stable for 3-4 weeks at 4°C. 1,3% g/v (=1,3g EDTA /100ml MiliQ and 1,3g Asc. Acid/100ml MiliQ) |
| - | Ascorbinezuur (250g) | + | Ascorbic acid (250g) |
| Specificatie | Specificatie | ||
| L(+)-Ascorbic Acid | L(+)-Ascorbic Acid | ||
24-h_urine_samples_edta_ascorbic_acid_suspension.txt · Last modified: 2019/11/07 16:13 (external edit)
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