Table 1.
The data of compounds in mulberry leaves obtained using HREIMS (A1: the peak area of the positive group; A2: the peak area of the blank control)
Peak no. | tR/min | Identification | Molecular formula | [M−H]− | A1/A2 (%) | ||
---|---|---|---|---|---|---|---|
Detected | Expected | Error/ppm | |||||
1 | 7.475 | Chlorogenic acid | C16H18O9 | 353.0885 | 353.0873 | 3.4 | 248 |
2 | 23.844 | Isoquercitrin | C21H20O12 | 463.0840 | 463.0877 | − 8.0 | 57 |
3 | 26.036 | Astragalin | C21H20O11 | 447.0936 | 447.0927 | 2.0 | 66 |
4 | 32.826 | Quercetin | C15H10O7 | 301.0360 | 301.0349 | 3.7 | 89 |