Table 3.
List of HDL gangliosides with retention times, their m/z values, charge states, assignments, and the ion intensities.
| Retention time (min) |
Measured m/z |
Charge state |
Mass error (ppm) |
Structural Assignment |
Ion Intensity (counts) |
|---|---|---|---|---|---|
| 12.9 | 1151.711 | −1 | −4.3 | GM3(d18:1/16:0) | 1120103 |
| 16.2 | 1179.732 | −1 | 4.2 | GM3(d16:1/20:0) or GM3 (d18:1/18:0) |
498901 |
| 19.7 | 1207.760 | −1 | 7.5 | GM3(d16:1/22:0) | 459570 |
| 21.4 | 1221.779 | −1 | 4.1 | GM3(d16:1/23:0) | 288025 |
| 22.9 | 1235.793 | −1 | 5.7 | GM3(d16:1/24:0) or GM3(d18:1/22:0) |
772085 |
| 24.3 | 1249.812 | −1 | 2.4 | GM3(d16:1/25:0) or GM3(d18:1/23:0) |
543404 |
| 25.8 | 1263.833 | −1 | −1.6 | GM3(d18:1/24:0) | 494824 |
| 26.7 | 1277.849 | −1 | −1.6 | GM3(d18:1/25:0) | 42591 |
| 20.2 | 755.935 | −2 | 1.3 | GD3(d16:1/23:0) | 455116 |
| 21.4 | 762.945 | −2 | −1.3 | GD3(d16:1/24:0) or GD3(d18:1/22:0) |
1006020 |
| 23.1 | 769.972 | −2 | 1.3 | GD3(d16:1/25:0) or GD3(d18:1/23:0) |
815475 |
| 24.7 | 776.960 | −2 | 0.0 | GD3(d18:1/24:0) | 523004 |