Research Article

Sample Preparation and Extraction in Small Sample Volumes Suitable for Pediatric Clinical Studies: Challenges, Advances, and Experiences of a Bioanalytical HPLC-MS/MS Method Validation Using Enalapril and Enalaprilat

Figure 6

Effect of elution volume on peak area of the analytes of interest. The peak areas of enalapril (a), enalaprilat (b), and benazepril (c) after elution are presented with different volumes of 2% formic acid in methanol. Each determination was conducted by three independently prepared quality control samples. The mean and corresponding standard deviations are shown.
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