Fluorescent sensing for some nitric oxide donors in dosage forms and biological matrices
作者:Wael Talaat、Sohila ElOnsy、Reda Mohammed Keshk
DOI:10.1016/j.saa.2021.119788
日期:2021.8
New fluorescent sensing of some nitric oxide donors, nitroglycerin and isosorbide dinitrate was developed in our laboratories. Two fluorescent reagents, 2-(2-hydroxyethylamino)-4,6-dimethylpyridine-3-carbonitrile, 3a and 2-(3-chloro-phenylamino)-4,6-dimethylpyridine-3-carbonitrile, 3b were synthesized in our laboratories and a comparative study was performed between them from the point of fluorescence
我们实验室开发了一些一氧化氮供体,硝酸甘油和硝酸异山梨酯的新型荧光传感技术。在我们的实验室中合成了两种荧光试剂2-(2-羟乙基氨基)-4,6-二甲基吡啶-3-腈3a和2-(3-氯苯基氨基)-4,6-二甲基吡啶-3-腈3b并且从荧光强度的角度对它们进行了比较研究。荧光团3a选择进行分析研究,因为它具有更高的量子产率值。注意到所选药物与荧光团之间的相互作用正在淬灭。研究了猝灭的机理,认为是通过光诱导电子转移过程的碰撞猝灭。所提出的传感方法已成功应用于浓度范围为(0.05-0.5 µg / mL)的剂型中硝酸甘油和硝酸异山梨酯的分析,回收率分别为99.9±0.5和99.9±0.7。还对加标的生物基质(如血浆样品的百分回收率分别为99.1±1.97和100.7±1.96)和尿液样品的百分回收率分别为100.4±1.8和100.3±1.7进行了研究药物硝酸甘油和硝酸异山梨酯的检测。。体内还研究了两种