作者: Balwinder Kaur , Rajendra Srivastava
关键词: Glassy carbon 、 Rutin 、 Chemistry 、 Linear range 、 Multivitamin 、 Riboflavin 、 Detection limit 、 Pyridoxine 、 Nanocrystalline material 、 Chromatography
摘要: Nanocrystalline metallosilicate modified glassy carbon electrodes were fabricated for the simultaneous determination of vitamins. Among these, nanocrystalline zirconosilicate exhibited highest activity with a linear range from 30 nM–500 µM riboflavin and 120 nM–600 µM rutin pyridoxine. Sensitivity values 2.8, 1.49, 1.13 µA/µM cm2 lower detection limits 5 nM, 30 nM, 30 nM riboflavin, rutin, pyridoxine, respectively, found. The proposed sensor is stable reproducible (RSD<3.5 %). analytical performance this was demonstrated in pharmaceutical preparations (multivitamin tablets) satisfactory recovery (97–103 %).