Research Article
Detection and Assay of Vitamin B-2 (Riboflavin) in Alkaline Borate Buffer with UV/Visible Spectrophotometry
Table 1
Percent recovery vitamin B-2 for repeated samples for evaluation.
| | Test sample | Molarity | Molarity by standard curve | Percent recovery |
| | 1 | 3.49 × 10−5 | 3.46 × 10−5 | 99.2 | | 2 | 3.49 × 10−5 | 3.48 × 10−5 | 99.7 | | 3 | 3.49 × 10−5 | 3.48 × 10−5 | 99.7 | | 4 | 3.49 × 10−5 | 3.43 × 10−5 | 98.3 | | 5 | 3.49 × 10−5 | 3.51 × 10−5 | 101 | | 6 | 3.49 × 10−5 | 3.46 × 10−5 | 99.2 | | 7 | 3.49 × 10−5 | 3.51 × 10−5 | 101 | | 8 | 3.49 × 10−5 | 3.51 × 10−5 | 101 | | 9 | 3.49 × 10−5 | 3.49 × 10−5 | 100 | | 10 | 3.49 × 10−5 | 3.54 × 10−5 | 101 | | 11 | 3.49 × 10−5 | 3.51 × 10−5 | 101 | | 12 | 3.49 × 10−5 | 3.51 × 10−5 | 101 | | 13 | 8.51 × 10−5 | 8.45 × 10−5 | 99.3 | | 14 | 8.51 × 10−5 | 8.61 × 10−5 | 101 | | 15 | 8.51 × 10−5 | 8.53 × 10−5 | 100 | | 16 | 8.51 × 10−5 | 8.25 × 10−5 | 97 | | 17 | 8.51 × 10−5 | 8.61 × 10−5 | 101 | | 18 | 8.51 × 10−5 | 8.45 × 10−5 | 99.3 | | 19 | 8.51 × 10−5 | 8.45 × 10−5 | 99.3 | | 20 | 8.51 × 10−5 | 8.61 × 10−5 | 101 | | 21 | 8.51 × 10−5 | 8.61 × 10−5 | 101 | | 22 | 8.51 × 10−5 | 8.53 × 10−5 | 100 | | 23 | 8.51 × 10−5 | 8.61 × 10−5 | 101 | | 24 | 8.51 × 10−5 | 8.45 × 10−5 | 99.3 |
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