Table 2 Results for precision studies
From: Development of an in-house HPLC method for the analysis of ecstasy-laced beverages
Concentration (mg/mL | Level of analyte in matrix (mg/mL) | ||||||
|---|---|---|---|---|---|---|---|
Standard | Ribena | Lipton | Pepsi | ||||
0.8 | 0.25 | 3 | 0.25 | 3 | 0.25 | 3 | |
| Â | Intra-day (%RSD) | ||||||
MA | 0.63 | 0.46 | 1.23 | 1.37 | 0.97 | 1.31 | 1.06 |
MDMA | 0.64 | 0.36 | 1.35 | 1.41 | 1.07 | 1.27 | 1.13 |
Ketamine | 0.61 | 0.32 | 1.36 | 1.48 | 1.07 | 1.02 | 1.17 |
| Â | Inter-day (%RSD) | ||||||
MA | 2.79 | 2.86 | 2.14 | 2.14 | 1.51 | 2.73 | 2.41 |
MDMA | 2.53 | 3.08 | 1.99 | 1.93 | 1.45 | 1.75 | 2.00 |
Ketamine | 2.69 | 3.18 | 1.92 | 2.11 | 1.42 | 1.86 | 1.96 |