Abstract
The aim of the present study was to develop a sensitive method to measure dextromethorphan and dextrorphan in urine by HPLC to support pharmacogenetic studies in ethnic groups. Linearity was assessed in the range: 0.015–10 μg mL−1 for dextromethorphan and 1-10 μg mL−1 for dextrorphan. Inter and intra-day coefficients of variation were < 10%. Limits of detection and quantitation were 0.003 μg mL−1 and 0.015 μg mL−1 for dextromethorphan and 0.24 μg mL−1 and 1.0 μg mL−1 for dextrorphan, respectively. The method is reliable in helping determine the phenotype of Mexican ethnic groups using model drugs such as dextromethorphan.
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Flores-Pérez, J., Flores-Pérez, C., Juárez-Olguín, H. et al. Determination of Dextromethorphan and Dextrorphan in Human Urine by High Performance Liquid Chromatography for Pharmacogenetic Investigations. Chromatographia 59, 481–485 (2004). https://doi.org/10.1365/s10337-004-0224-x
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DOI: https://doi.org/10.1365/s10337-004-0224-x