Table 1 Identified species from the sample by methanol-sprayed DESI-HRMS imaging
|  | CHN | CHO | CHO–Na | CHNO | MgOC* | Unassigned | Total |
|---|---|---|---|---|---|---|---|
A0080 | |||||||
Species | 45 | 75 | 16 | 35 | n.d | 40 | 211 |
Intensity (%) | 8.5 | 65.6 | 4.7 | 4.5 | n.d | 16.7 | 100 |
Orgueil | |||||||
Species | 3 | 33 | 16 | 7 | 64 | 25 | 84 |
Intensity (%) | 0.1 | 29.3 | 41.1 | 7.3 | n.d | 22.2 | 100 |
Murchison fragment 1 | |||||||
Species | 143 | 21 | 5 | 107 | 64 | 59 | 399 |
Intensity (%) | 5.6 | 7.2 | 3.6 | 75.2 | 4.0 | 4.4 | 100 |
Murchison fragment 2 | |||||||
Species | 158 | 28 | 5 | 96 | 64 | 60 | 411 |
Intensity (%) | 4.2 | 6.1 | 3.3 | 81.1 | 2.1 | 3.2 | 100 |