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Recovery of biogenic amines from dietary supplement negative control (low level)
| Compound | Amount added, μg | Amount recovered, μg | Recovery, % | RSDa, % |
|---|---|---|---|---|
| Octopamine | 101.6 | 101.1 | 99.5 | 1.24 |
| Synephrine | 111.5 | 115.8 | 104 | 1.36 |
| Phenylephrine | 107.1 | 128.8 | 120 | 3.44 |
| Tyramine | 99.73 | 117.1 | 117 | 0.52 |
| N-methyltyramine | 84.94 | 77.0 | 90.7 | 1.12 |
| Hordenine | 89.98 | 96.15 | 107 | 4.95 |
RSD = Relative standard deviation; estimated from triplicate determinations.
