Table 2 Precision (%RSD) and accuracy (%Recovery) for determination of shikimic acid, p-coumaric acid, and sinapinic acid using GC-TOFMS and GC × GC-TOFMS
Metabolite | GC-TOFMS | GC × GC-TOFMS | ||||
|---|---|---|---|---|---|---|
Content (μg) | Precision (%RSD) | Accuracy (%Recovery) | Content (μg) | Precision (%RSD) | Accuracy (%Recovery) | |
Shikimic acid | 0.50 | 1.86 | 85.12 ± 1.58 | 0.05 | 7.55 | 89.95 ± 6.79 |
2.50 | 1.70 | 106.85 ± 1.81 | 0.10 | 11.24 | 96.95 ± 10.90 | |
5.00 | 12.90 | 108.89 ± 14.04 | 1.00 | 8.02 | 98.22 ± 7.87 | |
p-Coumaric acid | 5.00 | 4.17 | 87.13 ± 3.63 | 0.50 | 11.61 | 93.48 ± 10.85 |
10.00 | 8.11 | 105.41 ± 8.54 | 1.00 | 6.06 | 96.31 ± 5.83 | |
12.50 | 7.85 | 102.49 ± 8.05 | 5.00 | 12.59 | 107.04 ± 13.47 | |
Sinapinic acid | 7.50 | 7.55 | 90.67 ± 6.84 | 0.75 | 3.53 | 114.57 ± 4.04 |
10.00 | 2.68 | 104.66 ± 2.80 | 1.00 | 4.33 | 100.61 ± 4.36 | |
12.50 | 3.98 | 100.91 ± 4.02 | 5.00 | 8.35 | 94.12 ± 7.86 | |