کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1214535 | 966937 | 2009 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Determination of mitragynine in rat plasma by LC–MS/MS: Application to pharmacokinetics Determination of mitragynine in rat plasma by LC–MS/MS: Application to pharmacokinetics](/preview/png/1214535.png)
This study used for the first time LC–MS/MS for the analysis of mitragynine (MIT), a μ-opioid agonist with antinociceptive and antitussive properties, in rat plasma. Mitragynine and the internal standard (amitriptyline) were extracted from plasma with hexane-isoamyl alcohol and resolved on a Lichrospher® RP-SelectB column (9.80 and 12.90 min, respectively). The quantification limit was 0.2 ng/mL within a linear range of 0.2–1000 ng/mL. The method was applied to quantify mitragynine in plasma samples of rats (n = 8 per sampling time) treated with a single oral dose of 20 mg/kg. The following pharmacokinetic parameters were obtained (mean): maximum plasma concentration: 424 ng/mL; time to reach maximum plasma concentration: 1.26 h; elimination half-life: 3.85 h, apparent total clearance: 6.35 L/h/kg, and apparent volume of distribution: 37.90 L/kg.
Journal: Journal of Chromatography B - Volume 877, Issue 24, 15 August 2009, Pages 2593–2597