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electrochemical amplified sensor with mgo nanoparticle and ionic liquid: a powerful strategy for methyldopa analysis
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نویسنده
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saghiri soheila ,ebrahimi mahmoud ,bozorgmehr mohammad reza
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منبع
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chemical methodologies - 2021 - دوره : 5 - شماره : 3 - صفحه:234 -239
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چکیده
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In this research, an amplified sensor based on paste electrode (pe) modified with mgo nanoparticle (mgo/nps) and 1-hexyl-3-methylimidazolium hexafluorophosphate (hmh) was designed and used for determination of methyldopa (md). the cp/mgo/nps/hmh showed good catalytic activity toward oxidation of md and improved drug current about 3.58 times. in addition, cp/mgo/nps/hmh showed a diffusion process and ph dependence behavior for electro-oxidation of md in aqueous solution. however, differential pulse voltammogram of cp/mgo/nps/hmh showed a linear dynamic range to sensing of md in concentration range 1.0 nm – 400 µm with detection limit 0.5 nm. the recovery range 98.25% - 102.5% was obtained for sensing of md in real samples using cp/mgo/nps/hmh.
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کلیدواژه
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methyldopa ,mgo nanoparticle ,ionic liquid ,1-hexyl-3-methylimidazolium hexafluorophosphate ,sensor
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آدرس
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islamic azad university, mashhad branch, department of chemistry, iran, islamic azad university, mashhad branch, department of chemistry, iran, islamic azad university, mashhad branch, department of chemistry, iran
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پست الکترونیکی
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alitaherkhani0151@yahoo.com
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Authors
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