Research Article
High-Performance Liquid Chromatography Determination of Meloxicam and Piroxicam with Ultraviolet Detection
Table 3
Intra-assay accuracy, precision, and assay linearity for meloxicam in milk.
| Intra-assay variability | Concentration added (ng/mL) | Concentration measured (ng/mL) (mean ± SD) | RSD (%) |
| 15 | 15 ± 0.41 | 2.7 | 750 | 727 ± 27 | 3.7 | 1250 | 1149 ± 30 | 2.6 | 3000 | 3000 ± 69 | 2.3 | 7500 | 7450 ± 399 | 5.3 |
| Assay linearity | | Mean ± SD | RSD (%) |
| -intercept | −0.0079 ± 0.0004 | 5.06 | Slope | 0.0017 ± 0.000013 | 0.76 | | 0.999 ± 0.003 | 0.30 |
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SD: standard deviation; : number of samples; RSD: relative standard deviation.
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