24-h_urine_samples_edta_ascorbic_acid_suspension
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24-h_urine_samples_edta_ascorbic_acid_suspension [2019/08/28 10:33] hilde |
24-h_urine_samples_edta_ascorbic_acid_suspension [2019/11/07 16:13] (current) |
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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-( 50ų) of EDTA to acidified solutions of ascorbic acid, completely protects the vitamin against copper-catalysed aerobic oxidation. |
| 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) | 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) | ||
| - | Ascorbic acid (250g) | + | __Ascorbic acid__ (250g) |
| Specificatie | Specificatie | ||
| L(+)-Ascorbic Acid | L(+)-Ascorbic Acid | ||
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| CAS: 50-81-92-6 | CAS: 50-81-92-6 | ||
| - | EDTA (100g) | + | __EDTA__ (100g) |
| Specificatie | Specificatie | ||
| Ethylenediaminetetra acetic acid disodium salt | Ethylenediaminetetra acetic acid disodium salt | ||
| ED2SS Pcode 101029232 CAS: 6381-92-6 | ED2SS Pcode 101029232 CAS: 6381-92-6 | ||
24-h_urine_samples_edta_ascorbic_acid_suspension.1566981231.txt.gz · Last modified: 2019/11/07 16:06 (external edit)
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