Idebenone is a benzoquinone analog that is used in the treatment of several neurological disorders including Friedreich’s ataxia. It was found that the reaction of idebenone with 2-cyanoacetamide under alkaline conditions generates fluorescent products, and the reaction was considered to proceed via Craven’s reaction. The reaction mixture from idebenone gave fluorescence with excitation and emission maximum wavelengths at 358 nm and 409 nm, respectively. It was adopted for HPLC with post-column fluorescence derivatization of idebenone. Idebenone in the plasma showed a linear response in the range of 0.5–32 ng (25–1600 ng/mL), and the quantitation limit (S/N=10) was 12.5 ng/mL. The detection limit (S/N=3) of the standard solution of idebenone was 0.1 ng. The HPLC system was applied to the human blood plasma obtained by finger prick. The plasma sample obtained by finger prick gave a similar chromatogram to that of venous blood obtained by venipuncture.
艾地苯醌是一种苯
醌类似物,可用于治疗包括弗里德里希共济失调在内的多种神经系统疾病。研究发现,在碱性条件下,
艾地苯醌与 2-
氰基乙酰胺反应会产生荧光产物,该反应被认为是通过克雷文反应进行的。由 idebenone 生成的反应混合物发出荧光,其激发和发射最大波长分别为 358 nm 和 409 nm。采用该方法进行高效
液相色谱分析,并在柱后对
艾地苯醌进行荧光衍生。血浆中的
艾地苯醌在 0.5-32 纳克(25-1600 纳克/毫升)范围内呈线性响应,定量限(S/N=10)为 12.5 纳克/毫升。
艾地苯醌标准溶液的检测限(S/N=3)为 0.1 纳克。该高效
液相色谱系统适用于通过刺破手指获得的人体血浆。刺破手指获得的血浆样本与静脉穿刺获得的静脉血样本的色谱图相似。