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