| Standard | Spiked concentration (ppm) | Sample concentration (ppm) | Recovery rate (%)1) |
|---|---|---|---|
| Histamine dihydrochloride | 40 | 44.8 | 112 |
| Tyramine hydrochloride | 40 | 41.6 | 104 |
| β-Phenylethylamine hydrochloride | 40 | 37.2 | 93 |
| Putrescine dihydrochloride | 40 | 43.3 | 108 |
| Cadaverine | 40 | 36.4 | 91 |
| Spermidine | 40 | 41.5 | 102 |
| Tryptamine hydrochloride | 40 | 35.9 | 90 |
| Ethanolamine hydrochloride | 40 | 40.2 | 101 |
| Butylamine | 40 | 36.6 | 92 |