Name Ion Type Ion Number Theoretical Mass Observed Mass Mass Difference (Da) Mass Difference (ppm) A+3 A+ 3 333.19266 333.193449 0.000788968 2.367903092 A+3 A+ 3 333.19266 333.193449 0.000788968 2.367903092 A3 A 3 332.184835 332.185635 0.0008 2.408297778 A3 A 3 332.184835 332.185635 0.0008 2.408297778 B3 B 3 360.17975 360.180616 0.000866 2.404355048 B3 B 3 360.17975 360.180616 0.000866 2.404355048 C3 C 3 377.20605 377.207212 0.001162 3.08054444 C3 C 3 377.20605 377.207212 0.001162 3.08054444 A+4 A+ 4 461.25124 461.252343 0.001102968 2.391251956 A+4 A+ 4 461.25124 461.252343 0.001102968 2.391251956 A4 A 4 460.243415 460.244551 0.001136 2.468259106 B4 B 4 488.23833 488.23953 0.0012 2.457816042 B4 B 4 488.23833 488.23953 0.0012 2.457816042 C4 C 4 505.26463 505.26604 0.00141 2.790616869 C4 C 4 505.26463 505.26604 0.00141 2.790616869 C5 C 5 642.32354 642.324971 0.001431 2.227849224 C5 C 5 642.32354 642.325369 0.001829 2.847474654 A5 A 5 597.302325 597.303858 0.001533 2.566539482 B5 B 5 625.29724 625.298817 0.001577 2.522000577 A+5 A+ 5 598.31015 598.311945 0.001794968 3.000062643 A+5 A+ 5 598.31015 598.311945 0.001794968 3.000062643 A+6 A+ 6 711.39421 711.395869 0.001658968 2.331995266 A+6 A+ 6 711.39421 711.396055 0.001844968 2.593453677 A6 A 6 710.386385 710.388203 0.001818 2.559170669 B6 B 6 738.3813 738.383119 0.001819 2.463496841 B6 B 6 738.3813 738.383279 0.001979 2.680187052 C6 C 6 755.4076 755.409808 0.002208 2.922925319 A+7 A+ 7 813.395575 813.397144 0.001568968 1.928911317 A+7 A+ 7 813.395575 813.397144 0.001568968 1.928911317 C7 C 7 857.408965 857.411124 0.002159 2.518051581 A+8 A+ 8 870.417035 870.418818 0.001782968 2.04840652 A+8 A+ 8 870.417035 870.419028 0.001992968 2.289670181 A+8 A+ 8 870.417035 870.419028 0.001992968 2.289670181 C9 C 9 1001.462455 1001.464868 0.002413 2.409476249 A+9 A+ 9 957.449065 957.451765 0.002699968 2.819959859 A+10 A+ 10 1094.507975 1094.511005 0.003029968 2.768337919 A+10 A+ 10 1094.507975 1094.511005 0.003029968 2.768337919 B11 B 11 1234.579125 1234.580919 0.001794 1.453126789 B11 B 11 1234.579125 1234.580919 0.001794 1.453126789 A+11 A+ 11 1207.592035 1207.595291 0.003255968 2.696248266 A+11 A+ 11 1207.592035 1207.595291 0.003255968 2.696248266 A+12 A+ 12 1306.660445 1306.663811 0.003365968 2.57600813 A+12 A+ 12 1306.660445 1306.663811 0.003365968 2.57600813 A+13 A+ 13 1435.703035 1435.706855 0.003819968 2.66069503 A+13 A+ 13 1435.703035 1435.706855 0.003819968 2.66069503 A+14 A+ 14 1506.740145 1506.742026 0.001880968 1.24836916 A+14 A+ 14 1506.740145 1506.742026 0.001880968 1.24836916 A14 A 14 1505.73232 1505.735241 0.002921 1.939919839 A14 A 14 1505.73232 1505.735241 0.002921 1.939919839 A+15 A+ 15 1619.824205 1619.828207 0.004001968 2.470618674 A+15 A+ 15 1619.824205 1619.828207 0.004001968 2.470618674 B16 B 16 1809.874625 1809.877604 0.002979 1.645970367 A+16 A+ 16 1782.887535 1782.891336 0.003800968 2.131916823 B17 B 17 1922.958685 1922.96226 0.003575 1.859114306 A18 A 18 1994.03218 1994.03569 0.00351 1.760252435 B18 B 18 2022.027095 2022.03066 0.003565 1.76308221 A+18 A+ 18 1995.040005 1995.043862 0.003856968 1.933278491 C19 C 19 4475.017585 4475 -0.017585 -3.929593497 B19 B 19 4457.991285 4457.976225 -0.01506 -3.378203105 A+19 A+ 19 4431.004195 4430.98998 -0.014215032 -3.208083641 A+20 A+ 20 4488.025655 4488.009934 -0.015721032 -3.502883735 B20 B 20 4515.012745 4514.998261 -0.014484 -3.207964367 C20 C 20 4532.039045 4532.025498 -0.013547 -2.989162244 A+21 A+ 21 4617.068245 4617.051274 -0.016971032 -3.675716097 B21 B 21 4644.055335 4644.040245 -0.01509 -3.249315288 C21 C 21 4661.081635 4661.071711 -0.009924 -2.129119543 A+22 A+ 22 4773.169355 4773.151972 -0.017383032 -3.64182177 B22 B 22 4800.156445 4800.141955 -0.01449 -3.018651614 A22 A 22 4772.16153 4772.151562 -0.009968 -2.08878093 A+23 A+ 23 4830.190815 4830.175504 -0.015311032 -3.169860707 C23 C 23 4874.204205 4874.191292 -0.012913 -2.649252977 A+24 A+ 24 4977.259225 4977.244313 -0.014912032 -2.996032836 B24 B 24 5004.246315 5004.233912 -0.012403 -2.478495106 C25 C 25 5168.341025 5168.325581 -0.015444 -2.988192909 A+25 A+ 25 5124.327635 5124.312929 -0.014706032 -2.869846176 B25 B 25 5151.314725 5151.304469 -0.010256 -1.990948049 C26 C 26 5331.404355 5331.388167 -0.016188 -3.036348197 A+26 A+ 26 5287.390965 5287.375873 -0.015092032 -2.854343885 B26 B 26 5314.378055 5314.363362 -0.014693 -2.764763787 C27 C 27 5432.452035 5432.431458 -0.020577 -3.787792302 B27 B 27 5415.425735 5415.408049 -0.017686 -3.265855884 B27 B 27 5415.425735 5415.439876 0.014141 2.611244377 A+27 A+ 27 5388.438645 5388.422085 -0.016560032 -3.073252413 A28 A 28 5484.48358 5484.47058 -0.013 -2.370323442 C29 C 29 5657.599755 5657.581399 -0.018356 -3.244485435 A+29 A+ 29 5613.586365 5613.577861 -0.008504032 -1.514901796 Y3 Y 3 314.195395 314.196096 0.000701 2.231095717 Y3 Y 3 314.195395 314.196096 0.000701 2.231095717 X+3 X+ 3 341.182485 341.183295 0.000809968 2.374002082 X+3 X+ 3 341.182485 341.183295 0.000809968 2.374002082 Z4 Z 4 399.22431 399.221044 -0.003266 -8.180864537 Z4 Z 4 399.22431 399.225191 0.000881 2.206779442 Z4 Z 4 399.22431 399.225191 0.000881 2.206779442 Y4 Y 4 415.243075 415.244075 0.001 2.408228 Y4 Y 4 415.243075 415.244075 0.001 2.408228 X4 X 4 441.22234 441.223366 0.001026 2.325358231 Z5 Z 5 562.28764 562.289044 0.001404 2.496942668 Z5 Z 5 562.28764 562.289044 0.001404 2.496942668 Y5 Y 5 578.306405 578.307827 0.001422 2.458904117 Y5 Y 5 578.306405 578.307827 0.001422 2.458904117 X5 X 5 604.28567 604.287191 0.001521 2.517021461 X5 X 5 604.28567 604.287191 0.001521 2.517021461 X+5 X+ 5 605.293495 605.295153 0.001657968 2.739114072 Y6 Y 6 725.374815 725.376798 0.001983 2.733759098 Y6 Y 6 725.374815 725.376798 0.001983 2.733759098 X6 X 6 751.35408 751.356143 0.002063 2.745709453 X6 X 6 751.35408 751.356143 0.002063 2.745709453 Z6 Z 6 709.35605 709.358164 0.002114 2.980167717 Z6 Z 6 709.35605 709.358164 0.002114 2.980167717 X7 X 7 898.42249 898.424901 0.002411 2.68359266 Z7 Z 7 856.42446 856.426959 0.002499 2.917945618 Z7 Z 7 856.42446 856.426959 0.002499 2.917945618 X+8 X+ 8 956.451775 956.45197 0.000194968 0.203845019 X8 X 8 955.44395 955.446263 0.002313 2.420864144 Z8 Z 8 913.44592 913.448384 0.002464 2.697477701 Y-8 Y- 8 928.45686 928.459423 0.002563032 2.760528982 X9 X 9 1111.54506 1111.547811 0.002751 2.474933405 X9 X 9 1111.54506 1111.547811 0.002751 2.474933405 Z9 Z 9 1069.54703 1069.550156 0.003126 2.922732626 Z9 Z 9 1069.54703 1069.550156 0.003126 2.922732626 Y9 Y 9 1085.565795 1085.568974 0.003179 2.92842683 Y-9 Y- 9 1084.55797 1084.561301 0.003331032 3.071326902 X10 X 10 1240.58765 1240.590789 0.003139 2.530252498 X10 X 10 1240.58765 1240.590789 0.003139 2.530252498 Z10 Z 10 1198.58962 1198.592853 0.003233 2.697336892 X+11 X+ 11 1298.616935 1298.617004 6.89679E-05 0.053108756 Y11 Y 11 1271.629845 1271.632713 0.002868 2.2553733 X11 X 11 1297.60911 1297.612446 0.003336 2.570882074 X11 X 11 1297.60911 1297.612446 0.003336 2.570882074 Z11 Z 11 1255.61108 1255.614468 0.003388 2.698287753 Z11 Z 11 1255.61108 1255.614468 0.003388 2.698287753 Y15 Y 15 4082.809835 4082.850452 0.040617 9.948295816 X17 X 17 4292.91027 4292.892005 -0.018265 -4.254689442 X+18 X+ 18 4422.960685 4422.944728 -0.015957032 -3.607771628 Y21 Y 21 4745.184975 4745.144661 -0.040314 -8.495769967 Z21 Z 21 4729.16621 4729.136444 -0.029766 -6.294132766 X+21 X+ 21 4772.172065 4772.151562 -0.020503032 -4.29637318 Z22 Z 22 4816.19824 4816.164622 -0.033618 -6.980194403 X22 X 22 4858.19627 4858.16736 -0.02891 -5.950768226 X+23 X+ 23 4916.225555 4916.186752 -0.038803032 -7.892850244 X+23 X+ 23 4916.225555 4916.186752 -0.038803032 -7.892850244 Y-24 Y- 24 4990.232005 4990.214497 -0.017507968 -3.508447686 X+24 X+ 24 5018.22692 5018.210221 -0.016699032 -3.327675758 Z25 Z 25 5088.305125 5088.290626 -0.014499 -2.849475345 X25 X 25 5130.303155 5130.295838 -0.007317 -1.426231507 X25 X 25 5130.303155 5130.327307 0.024152 4.707714002 X+26 X+ 26 5268.36989 5268.352685 -0.017205032 -3.265722117 Y26 Y 26 5241.3828 5241.365987 -0.016813 -3.207741285 Z27 Z 27 5353.422615 5353.409376 -0.013239 -2.472997361 X+28 X+ 28 5510.4714 5510.453302 -0.018098032 -3.28429834 Z28 Z 28 5467.465545 5467.44881 -0.016735 -3.060833189 Y-29 Y- 29 5581.544895 5581.555757 0.010862032 1.946061937 X+29 X+ 29 5609.53981 5609.557797 0.017986968 3.206496173