Table 8.
Accuracy of 7 elements in rosuvastatin calcium tablets.
| Analyte | Added (µg·L−1) | Found (µg·L−1) | Recovery (%) |
|---|---|---|---|
| Cd | 0.5 (50%) | 0.506, 0.506, 0.518 | 100.4, 100.4, 102.8 |
| 1 (100%) | 1.002, 1.020, 0.977 | 99.8, 101.6, 97.3 | |
| 1.5 (150%) | 1.501, 1.486, 1.488 | 99.8, 98.8, 98.9 | |
| Average | — | 99.8 | |
|
| |||
| Pb | 0.5 (50%) | 0.545, 0.544, 0.545 | 101.4, 101.2, 101.4 |
| 1 (100%) | 1.056, 1.074, 1.054 | 101.8, 103.6, 101.6 | |
| 1.5 (150%) | 1.582, 1.554, 1.584 | 102.9, 101.1, 103.1 | |
| Average | — | 102.0 | |
|
| |||
| As | 1.5 (50%) | 1.427, 1.425, 1.455 | 94.6, 94.5, 96.5 |
| 3 (100%) | 2.853, 2.907, 2.845 | 94.8, 96.6, 94.6 | |
| 4.5 (150%) | 4.280, 4.281, 4.253 | 94.9, 95.0, 94.3 | |
| Average | — | 95.1 | |
|
| |||
| Hg | 3 (50%) | 2.753, 2.764, 2.782 | 91.8, 92.1, 92.7 |
| 6 (100%) | 5.616, 5.581, 5.532 | 93.6, 93.0, 92.2 | |
| 9 (150%) | 8.455, 8.383, 8.428 | 93.9, 93.1, 93.6 | |
| Average | — | 92.9 | |
|
| |||
| Co | 5 (50%) | 4.877, 4.907, 4.937 | 96.3, 96.9, 97.5 |
| 10 (100%) | 9.721, 9.707, 9.601 | 96.6, 96.4, 95.4 | |
| 15 (150%) | 14.455, 14.432, 14.316 | 96.0, 95.8, 95.0 | |
| Average | — | 96.2 | |
|
| |||
| V | 10 (50%) | 10.234, 10.169, 10.292 | 97.6, 97.0, 98.2 |
| 20 (100%) | 20.045, 19.918, 19.755 | 97.9, 97.2, 96.4 | |
| 30 (150%) | 29.398, 29.376, 29.304 | 96.4, 96.3, 96.1 | |
| Average | — | 97.0 | |
|
| |||
| Ni | 20 (50%) | 19.372, 19.422, 19.648 | 96.0, 96.3, 97.4 |
| 40 (100%) | 38.757, 38.859, 38.380 | 96.5, 96.7, 95.5 | |
| 60 (150%) | 57.217, 57.290, 56.764 | 95.1, 95.2, 94.3 | |
| Average | — | 95.9 | |
The concentration of Cd was 0.002 µg·L−1, Pb was 0.019 µg·L−1, As was 0.0038 µg·L−1, Co was 0.031 µg·L−1, V was 0.2354 µg·L−1, and Ni was 0.0822 µg·L−1.