Research Article
Detection and Assay of Vitamin B-2 (Riboflavin) in Alkaline Borate Buffer with UV/Visible Spectrophotometry
Table 2
Percent recovery for samples based on vitamin B-2 content.
| Test sample | Origin molarity | Molarity by standard curve | Percent recovery |
| 1 | 1.28 × 10−6 | 1.28 × 10−6 | 100 | 2 | 2.63 × 10−6 | 2.63 × 10−6 | 99.9 | 3 | 4.94 × 10−6 | 4.94 × 10−6 | 99.9 | 4 | 6.86 × 10−6 | 6.86 × 10−6 | 99.9 | 5 | 8.53 × 10−6 | 8.53 × 10−6 | 99.9 | 6 | 1.03 × 10−5 | 1.03 × 10−5 | 100 | 7 | 1.23 × 10−5 | 1.23 × 10−5 | 99.9 | 8 | 1.40 × 10−5 | 1.40 × 10−5 | 99.9 | 9 | 1.58 × 10−5 | 1.58 × 10−5 | 100 | 10 | 1.71 × 10−5 | 1.71 × 10−5 | 99.9 | 11 | 1.95 × 10−5 | 1.95 × 10−5 | 99.9 | 12 | 2.07 × 10−5 | 2.07 × 10−5 | 99.9 | 13 | 2.23 × 10−5 | 2.23 × 10−5 | 99.9 | 14 | 2.37 × 10−5 | 2.37 × 10−5 | 99.9 | 15 | 9.25 × 10−5 | 9.25 × 10−5 | 99.9 | 16 | 8.85 × 10−5 | 8.85 × 10−5 | 100 | 17 | 8.61 × 10−5 | 8.61 × 10−5 | 100 | 18 | 8.33 × 10−5 | 8.33 × 10−5 | 100 | 19 | 8.05 × 10−5 | 8.05 × 10−5 | 100 | 20 | 7.73 × 10−5 | 7.73 × 10−5 | 100 | 21 | 7.37 × 10−5 | 7.38 × 10−5 | 100 | 22 | 7.06 × 10−5 | 7.05 × 10−5 | 99.9 | 23 | 6.78 × 10−5 | 6.78 × 10−5 | 99.9 | 24 | 6.43 × 10−5 | 6.42 × 10−5 | 99.9 | 25 | 1.12 × 10−4 | 1.12 × 10−4 | 99.9 | 26 | 1.15 × 10−4 | 1.15 × 10−4 | 99.9 | 27 | 6.43 × 10−5 | 6.42 × 10−5 | 99.9 | 28 | 6.58 × 10−5 | 6.58 × 10−5 | 99.9 | 29 | 6.66 × 10−5 | 6.66 × 10−5 | 100 | 30 | 6.98 × 10−5 | 6.98 × 10−5 | 99.9 | 31 | 7.29 × 10−5 | 7.29 × 10−5 | 100 |
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