Table 2 Quantification of identified phenolic compounds in methanol extract of Rindera lanata by LC ESI MS/MS in negative ionization mode
Analytes | RT | [M-H]−(m/z) | MS2 (m/z) | Equation | Amounta |
|---|---|---|---|---|---|
Quinic acid | 3.36 | 190.95 | 85, 93 | f(x) = 33.66x + 25133 | 2318.60 ± 111.29 |
Malic acid | 3.60 | 133.05 | 115, 71 | f(x) = 93.61x-5673 | 9381.66 ± 497.23 |
Chlorogenic acid | 5.29 | 353 | 191 | f(x) = 48.98x + 26780 | 23.63 ± 1.16 |
Protocatechuic acid | 5.51 | 152.95 | 109, 108 | f(x) = 36.86x + 6197 | 32.3 ± 1.65 |
Caffeic acid | 7.11 | 178.95 | 135, 134, 89 | f(x) = 1585x + 83958 | 13.53 ± 0.70 |
p-Coumaric acid | 9.17 | 162.95 | 119, 93 | f (x) = 73.53x + 27064 | 173.59 ± 8.85 |
Rosmarinic acid | 9.19 | 358.9 | 161, 133 | f (x) = 18.02x + 1149 | 706.38 ± 34.61 |
Rutin | 9.67 | 609.1 | 300, 271, 301 | f(x) = 51.88 + 3841 | 101.89 ± 5.09 |
Hesperidin | 9.69 | 611.1 | 303, 465 | f(x) = 1975.77 + 105641 | 399.74 ± 19.59 |
Hyperoside | 9.96 | 463.1 | 300, 301 | f(x) = 0.98x + 827 | 118.00 ± 5.78 |
Apigenin | 16.73 | 268.95 | 151, 117 | f(x) = 543.79 + 18525 | 0.10 ± 0.005 |
Rhamnetin | 18.41 | 314.95 | 165, 121, 300 | f(x) = 110.09 + 632.44 | 0.23 ± 0.014 |