Table 3.
Analyte | Spiked conc. (ng/mL) | Recovery (%)a, b | RSD (%)c |
---|---|---|---|
Notoginsenoside R1 | 2.8 | 96.0 ± 6.72 | 6.99 |
14 | 104.0 ± 7.71 | 7.41 | |
140 | 102.3 ± 7.82 | 7.82 | |
Ginsenoside Rg1 | 3.8 | 99.9 ± 6.89 | 6.90 |
19 | 102.4 ± 6.73 | 6.57 | |
190 | 98.96 ± 8.06 | 8.14 | |
Ginsenoside Rb1 | 18 | 102.6 ± 9.85 | 9.60 |
180 | 101.1 ± 10.26 | 9.14 | |
900 | 105.0 ± 8.32 | 7.92 |
Note: aRecovery (%) = [1 -- (spiked concentration -- measured concentration)/spiked concentration] × 100; bValues are the mean ± SD (n = 4); c Relative standard deviation