A fluorogenic reagent, 3-(4,6-difluorotriazinyl)amino-7-methoxycoumarin, for the determination of amantadine by high-performance liquid chromatography.
作者:Hiroyuki FUJINO、Shujiro GOYA
DOI:10.1248/cpb.38.544
日期:——
A sensitive method for determination of amantadine by high-performance liquid chromatography (HPLC) has been developed. Amantadine was derivatized quantitatively into a fluorescent compound through the amino group by treatment with 3-(4, 6-difluorotriazinyl)amino-7-methoxycoumarin (FAMC) in benzene at 140°C for 15 min. The derivative was subjected to HPLC on TSK gel ODS-120T (250 × 4.6 mm i.d.) with acetonitrile-water (5 : 1) as the mobile phase and monitored by fluorescence detection (Ex. 345 nm; Em. 410 nm). The limit of detection was 250 fmol in 100μl of urine. This method was satisfactory with respect to recovery and precision to quantify amantadine spiked in urine.
建立了一种高效液相色谱法(HPLC)测定金刚烷胺的灵敏方法。用 3-(4,6-二氟三嗪基)氨基-7-甲氧基香豆素(FAMC)在 140°C 的苯中处理 15 分钟,通过氨基将金刚烷胺定量衍生为荧光化合物。衍生物在 TSK 凝胶 ODS-120T (250 × 4.6 mm i.d.)上进行高效液相色谱分析,流动相为乙腈-水(5:1),荧光检测(Ex. 345 nm; Em. 410 nm)。检测限为 100 微升尿液中 250 fmol。该方法的回收率和精密度令人满意,可用于尿液中金刚烷胺的定量分析。