| CYS-SE | GS-SE | CYSGLY-SE | |
| Concentration (mM) | 0.0083 | 0.0066 | 0.0053 |
| Mean Peak Area (mAu) | 4.04 | 3.94 | 2.24 |
| S.D. | 0.048 | 0.070 | 0.048 |
| %RSD | 1.199 | 1.768 | 2.164 |