Table 2. Deviations of retention times (RTs), peak areas, and mass accuracy of the 14 compounds in the standard mixture.
| Standard | m/z | RTs (min) |
Delta (ppm) |
Peak Area |
||||
|---|---|---|---|---|---|---|---|---|
| mean | CV (%) | mean | min | max | mean | CV (%) | ||
| Adenine | 136.06232 | 11.17 | 0.87 | 2.92 | 2.79 | 2.94 | 639646.70 | 1.62 |
| Guanosine | 284.09949 | 11.58 | 0.63 | 1.53 | 1.41 | 1.62 | 4535286.00 | 3.89 |
| L-Arginine | 175.11950 | 18.75 | 0.28 | 2.54 | 2.51 | 2.57 | 304883.30 | 8.90 |
| Creatinine | 114.06673 | 13.90 | 0.61 | 3.33 | 3.24 | 3.51 | 31382.33 | 2.80 |
| L-histidine | 156.07730 | 18.97 | 0.39 | 2.55 | 2.50 | 2.56 | 114596.00 | 10.34 |
| L-phenylalanine | 166.08680 | 15.03 | 0.35 | 2.66 | 2.59 | 2.71 | 274661.70 | 5.02 |
| Sucrose | 360.15058 | 14.09 | 0.58 | 0.86 | 0.69 | 1.03 | 221366.00 | 8.37 |
| Cer (d18:1/17:0 (2S-OH)) | 568.53046 | 2.31 | 1.53 | 0.82 | 0.07 | 1.51 | 4580576.00 | 4.54 |
| LPC (17:0) | 510.35595 | 15.72 | 0.44 | 2.96 | 2.66 | 3.25 | 5543540.00 | 2.72 |
| PC (17:0/17:0) | 762.60125 | 14.71 | 0.37 | 3.20 | 2.95 | 3.44 | 1794670.00 | 8.48 |
| PE (17:0/17:0) | 720.55430 | 13.50 | 0.51 | 2.75 | 2.22 | 3.50 | 807101.70 | 7.72 |
| PA (17:0/17:0) | 694.53865 | 12.82 | 0.68 | 1.21 | 1.02 | 1.55 | 843154.00 | 8.03 |
| PG (17:0/17:0) | 768.57542 | 12.08 | 0.77 | 2.32 | 1.86 | 3.06 | 1777743.00 | 10.36 |
| DG (15:0/15:0) | 558.50972 | 2.16 | 3.43 | 2.62 | 1.50 | 3.47 | 15384.33 | 0.61 |