Table 2
Ion counts for each type of mass spectrum at each observation during the Philae first-science sequence.
| Obs. | Mass | Mass range | Selected ion masses | ||||||||||
| spectrum | 13–24 | 25–89 | 90–132 | TIC | m/z16 | m/z17 | m/z18 | m/z19 | m/z28 | m/z29 | m/z44 | m/z45 | |
|
|
|||||||||||||
| Ag | MS1 | 1326 | 2098 | 546 | 3970 | 29 | 90 | 193 | 954 | 90 | 47 | 45 | 312 |
| MS2 | 919 | 1452 | 380 | 2751 | 20 | 62 | 134 | 660 | 40 | 34 | 40 | 178 | |
| combined | 2245 | 3550 | 926 | 6721 | 49 | 152 | 327 | 1614 | 130 | 81 | 85 | 490 | |
| Ab1 | MS1 | 265 | 115 | 12 | 392 | 13 | 27 | 146 | 72 | 5 | 4 | 41 | 9 |
| MS2 | 361 | 157 | 13 | 531 | 18 | 37 | 199 | 98 | 6 | 5 | 49 | 8 | |
| combined | 626 | 272 | 25 | 923 | 31 | 64 | 345 | 170 | 11 | 9 | 90 | 17 | |
| Ab2 | MS1 | 167 | 62 | 5 | 234 | 10 | 16 | 109 | 29 | 2 | 3 | 31 | 0 |
| MS2 | 143 | 73 | 5 | 221 | 8 | 14 | 93 | 25 | 2 | 2 | 28 | 5 | |
| combined | 310 | 135 | 10 | 455 | 18 | 30 | 202 | 54 | 4 | 5 | 59 | 5 | |
| Ab3 | MS1 | 78 | 52 | 2 | 132 | 7 | 10 | 47 | 13 | 5 | 1 | 19 | 2 |
| MS2 | 115 | 35 | 2 | 152 | 10 | 15 | 70 | 19 | 0 | 0 | 14 | 3 | |
| combined | 193 | 87 | 4 | 284 | 17 | 25 | 117 | 32 | 5 | 1 | 33 | 5 | |
| Ab4 | MS1 | 39 | 16 | 2 | 57 | 1 | 8 | 24 | 4 | 1 | 0 | 10 | 1 |
| MS2 | 44 | 14 | 2 | 60 | 1 | 9 | 27 | 5 | 1 | 0 | 5 | 1 | |
| combined | 83 | 30 | 4 | 117 | 2 | 17 | 51 | 9 | 2 | 0 | 15 | 2 | |
| Ab5 | MS1 | 7 | 12 | 0 | 19 | 0 | 0 | 6 | 1 | 0 | 1 | 4 | 2 |
| MS2 | 14 | 6 | 0 | 20 | 0 | 0 | 12 | 2 | 0 | 0 | 0 | 0 | |
| combined | 21 | 18 | 0 | 39 | 0 | 0 | 18 | 3 | 0 | 1 | 4 | 2 | |
| Ab6 | MS1 | 6 | 19 | 3 | 28 | 1 | 1 | 4 | 0 | 1 | 1 | 11 | 2 |
| MS2 | 7 | 16 | 3 | 26 | 1 | 5 | 5 | 5 | 0 | 0 | 6 | 4 | |
| combined | 13 | 35 | 6 | 54 | 2 | 6 | 9 | 5 | 1 | 1 | 17 | 6 | |
| Bkg | MS1 | 48 | 22 | 1 | 71 | 1 | 8 | 38 | 1 | 3 | 0 | 2 | 2 |
| MS2 | 33 | 15 | 1 | 49 | 1 | 5 | 26 | 1 | 2 | 0 | 2 | 1 | |
| combined | 81 | 37 | 2 | 120 | 2 | 13 | 64 | 2 | 5 | 0 | 4 | 3 | |
Notes. Mass spectra are from m/z 13–89 for MS1 and m/z 25–132 for MS2. Ion counts for the missing mass ranges (m/z 90–132 for MS1 and m/z 13–24 for MS2) are calculated as explained in the text; these extrapolated values are shaded. The resulting total ion count (TIC), i.e., the number of ions in each mass spectrum, is also listed.
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