Table 3.
Inter-day and Intra-day Precisions for Gabapentin and Buprenorphine. Values are calculated as relative standard deviation.
| Gabapentin | ||||||||
|---|---|---|---|---|---|---|---|---|
| Standard Concentration (ng/mL) | Inter-day (n=3) | Intra-day(n=5) | ||||||
| Mean | SD | %RSD | %DFN | Mean | SD | %RSD | %DFN | |
| 100 | 98.0 | 4.78 | 4.88% | −1.95% | 97.5 | 5.17 | 5.30% | −2.47% |
| 300 | 310 | 8.46 | 2.73% | 3.34% | 307 | 9.82 | 3.20% | 2.24% |
| 1000 | 1003 | 32.2 | 3.21% | 0.28% | 1019 | 32.9 | 3.23% | 1.86% |
| 3000 | 2933 | 79.4 | 2.71% | −2.22% | 2940 | 67.8 | 2.31% | −2.01% |
| 10000 | 10056 | 97.8 | 0.97% | 0.56% | 10037 | 88.6 | 0.88% | 0.37% |
| Buprenorphine | ||||||||
| Standard Concentration (ng/mL) | Inter-day (n=3) | Intra-day(n=5) | ||||||
| Mean | SD | %RSD | %DFN | Mean | SD | %RSD | %DFN | |
| 1 | 1.1 | 0.17 | 15.59% | 7.72% | 1.1 | 0.13 | 11.65% | 9.24% |
| 30 | 29 | 2.62 | 8.98% | −2.87% | 29 | 1.92 | 6.67% | −3.99% |
| 100 | 94 | 10.5 | 11.12% | −5.69% | 96 | 8.3 | 8.66% | −4.11% |
| 300 | 292 | 15.8 | 5.40% | −2.59% | 296 | 12.7 | 4.30% | −1.46% |
| 1000 | 979 | 90.7 | 9.26% | −2.08% | 982 | 64.2 | 6.54% | −1.83% |
| 3000 | 2900 | 69.1 | 2.38% | −3.33% | 2887 | 218.3 | 7.56% | −3.75% |
| 10000 | 10025 | 227.0 | 2.26% | 0.25% | 10075 | 276.1 | 2.74% | 0.75% |