Research Article
A Liquid Chromatography-Tandem Mass Spectrometry Method for Evaluation of Two Brands of Enalapril 20 mg Tablets in Healthy Human Volunteers
Table 1
Intra- and interday precision and accuracy data for enalapril and enalaprilat in human plasma (
).
| | Intraday (within run) | Interday (between runs) | Mean concentration (ng/ml) | SD | CV (%) | Accuracy (%) | Mean concentration (ng/ml) | SD | CV (%) | Accuracy (%) |
| Enalapril | | | | | | | | | LQC (3 ng/ml) | 2.834 | 0.107 | 3.773 | 94.458 | 2.98 | 0.21 | | 99.27 | MQC (100 ng/ml) | 100.691 | 4.08 | 4.05 | 100.691 | 100.68 | 4.93 | | 100.68 | HQC (1600 ng/ml) | 161.366 | 7.169 | 4.459 | 100.854 | 162.48 | 12.62 | | 101.55 |
| Enalaprilat | | | | | | | | | LQC (3 ng/ml) | 2.876 | 0.124 | 4.295 | 95.861 | 3.310 | 0.210 | | 110.34 | MQC (100 ng/ml) | 98.514 | 3.816 | 3.873 | 98.514 | 102.224 | 4.280 | | 102.24 | HQC (160 ng/ml) | 152.412 | 4.517 | 2.964 | 95.257 | 162.11 | 11.43 | | 101.32 |
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LQC: low quality control; MQC: medium quality control; HQC: high quality control.
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