Table 1.
Quantitative determination of phenolic compound content of EMS by LC-MS/MS method
| Standard compounds | a MRM | b RSD (%) |
c
LOD/LOQ
(μg L -1 ) |
Recovery (%) | d RT | e R 2 | Equation |
Concentration
(µg L -1 ) |
|---|---|---|---|---|---|---|---|---|
| Quercetin | 301.1 > 151 | 0.0136 | 22.5/25.7 | 1.001 | 3.891 | 0.999 | Y = (13.7831) X + (-146.951) |
174.36 |
| Acetohydroxamic Acid | 76.10 > 43.10 | 0.0082 | 2.8/8.2 | 1.000 | 0.406 | 0.999 | Y = (150.982) X + (23.1833) |
84.37 |
| Catechin hydrate | 291.10 > 139.00 | 0.0236 | 8.2/11.4 | 0.994 | 2.532 | 0.999 | Y = (79.2933) X + (-2406.22) |
261.27 |
| Vanillic Acid | 168.80 > 93.00 | 0.0062 | 125.5/142.2 | 1.001 | 2.762 | 0.998 | Y = (48.0522) X+ (-876.904) |
520.01 |
| Resveratrol | 229.10 > 135.00 | 0.0131 | 9.0/13.6 | 0.998 | 3.606 | 0.998 | Y = (46.4361) X + (-1314.61) |
26.06 |
| Fumaric Acid | 115.20 > 71.00 | 0.0047 | 25.2/31.3 | 0.997 | 0.809 | 0.999 | Y = (20.2986) X + (-762.592) |
411.06 |
| Gallic acid | 169.20 > 125.00 | 0.0136 | 0.90/1.6 | 1.000 | 1.278 | 0.999 | Y = (65.3835) X + (-2699.84) |
14.87 |
| Caffeic Acid | 179.20 > 135.00 | 0.0137 | 6.3/10.7 | 1.009 | 2.836 | 0.996 | Y = (124.785) X + (-487.132) |
37.91 |
| Phloridzin dihydrate | 435.00 > 273.10 | 0.0564 | 61.0/207.0 | 1.00 | 3.594 | 0.999 | Y = (33.4069) X + (-1396.90) |
98.31 |
| Oleuropein | 539.10 > 377.20 | 0.0694 | 0.05/1.0 | 0.997 | 3.567 | 0.999 | Y = (25.9240) X + (-558.916) |
14.31 |
| Ellagic Acid | 300.90 > 145.10 | 0.0856 | 0.101/0.333 | 1.002 | 3.681 | 1.000 | Y = (5.25903) X + (-1167.31) |
N.D. |
| Myricetin | 317.10 > 150.90 | 0.0079 | 55.4/59.6 | 0.999 | 3.644 | 0.999 | Y = (37.0934) X + (2684.23) |
131.18 |
| Protocatechuic acid | 181.20 > 108.00 | 0.0129 | 30.3/35.4 | 1.011 | 3.556 | 0.994 | Y = (526.954) X + (23026.1) |
N.D. |
| Butein | 271.10 > 135.00 | 0.0145 | 22.7/28.6 | 0.096 | 3.935 | 0.999 | Y = (49.3543) X + (367.917) |
61.67 |
| Naringenin | 271.10 > 150.90 | 0.0205 | 5.4/6.4 | 0.998 | 3.952 | 0.996 | Y = (317.241) X + (33733.3) |
N.D. |
| Luteolin | 285.20 > 132.90 | 0.0057 | 0.5/2.5 | 1.007 | 4.069 | 0.998 | Y = (34.6668) X + (3721.79) |
N.D. |
| Kaempferol | 285.10 > 116.90 | 0.0144 | 206.6/214.3 | 0.999 | 4.298 | 0.999 | Y = (2.63905) X + (-206.494) |
8.83 |
| Alizarin | 239.20 > 210.90 | 0.0351 | 65.2/77.5 | 0.966 | 4.594 | 0.998 | Y = (3.97487) X + (1614.23) |
N.D. |
| 4-Hydroxybenzoic Acid | 137.20 > 93.00 | 0.0154 | 30.5/40.25 | 0.996 | 3.664 | 0.999 | Y = (735.804) X + (-498.102) |
N.D. |
| Salicylic acid | 137.20 > 93.00 | 0.0124 | 4.2/7.6 | 1.009 | 3.558 | 0.999 | Y = (746.369) X + (6072.41) |
N.D. |
aMRM: Multiple Reaction Monitoring; bRSD: Relative standard deviation; cLOD/LOQ (µg L-1): limit of detection/limit of quantitation; dRT: Retention time; eR2: Determination coefficient; N.D: Not detected.