Title of article :
Nano-molar level determination of isoprenaline in pharmaceutical and clinical samples; A nanostructure electroanalytical strategy
Author/Authors :
Moshirian-Farahi ، Sareh Sadat Department of Applied Chemistry - Islamic Azad University, Mashhad Branch , Zamani ، Hassan Ali Department of Applied Chemistry - Islamic Azad University, Mashhad Branch , Abedi ، Mohamadreza Department of Applied Chemistry - Islamic Azad University, Quchan Branch
Abstract :
A high sensitive electroanalyticalbased sensor for determination of isoprenaline was fabricated by modification of carbon paste electrode (CPE) by NiOPtPd/CNTs composite as conductive mediator and nhexyl3methylimidazolium hexafluoro phosphate (NHIHP) as conductive binder. The NHIHP/NiOPtPd/CNTs/CPE was improved the oxidation signal of isoprenaline ⁓3.47 times and reduced oxidation overpotential of drug ⁓180 mV. The pH investigation confirmed that redox behavior of isoprenaline is depended of pH solution with equal value of electron and proton in redox mechanism. The NHIHP/NiOPtPd/CNTs/CPE was successfully used for determination of isoprenaline in the concertation range 0.003300 µM with detection limit 0.9 nM by square wave voltammetric method. The standard addition results showed powerful ability of NHIHP/NiOPtPd/CNTs/CPE as an electroanalytical tool for determination of isoprenaline in the pharmaceutical and clinical samples with recovery data 98.76105.06%.
Keywords :
Isoprenaline , NiO , based composite , Nanostructure sensor , Modified carbon paste electrode , Drug sensor
Journal title :
Eurasian Chemical Communications
Journal title :
Eurasian Chemical Communications
