Table. 7. Retention time of mixed amino acid STD and pharmacopuncture extracted from centipedes by using derivatization methods.
| Mixed amino acid STD | Pharmacopuncture from centipedes | ||
|---|---|---|---|
| Retention time | Amino acid name | Retention time | Amino acid name |
| 1.97 | ASP | 1.86 | ASP |
| 4.03 | GLU | 3.84 | GLU |
| 6.34 | ASN | 6.27 | ASN |
| 7.20 | HIS | ─ | ─ |
| 7.52 | GLY | 7.47 | GLY |
| 7.70 | THR | ─ | ─ |
| 8.26 | ARG | 8.33 | ARG |
| 8.85 | ALA | 8.85 | ALA |
| 9.97 | TYR | ─ | ─ |
| 11.32 | CY2 | ─ | ─ |
| 11.78 | VAL | 11.79 | VAL |
| 11.97 | MET | ─ | ─ |
| 13.11 | PHE | ─ | ─ |
| 13.30 | ILE | ─ | ─ |
| 13.89 | LEU | 13.95 | LEU |
| 14.28 | LYS | 14.39 | LYS |
STD, standard; ASP, aspartate; GLU, glutamate; ASN, asparagine; HIS, histidine; GLY, glycine; THR, threonine; ARG, arginine; ALA, alanine; TYR, tyrosine; CY2, cystine; VAL, valine; MET, methionine; PHE, phenylalanine; ILE, isoleucine; LEU, leucine; LYS, lysine.