نوع مقاله : مقاله پژوهشی کامل
نویسنده
دانشگاه پیام نور مرکز کرمان
چکیده
در کار حاضر، یک حسگر ولتامتری یکبار مصرف با استفاده از الکترود صفحه چاپی اصلاح شده با نانوذرات فریت منگنز (MF/SPE) برای تعیین اپینین(EP) طراحی گردید. رفتار الکتروشیمیایی EP در سطح MF/SPEبا استفاده از تکنیکهای ولتامتری پالس تفاضلی (DPV)، ولتامتری چرخهای (CV) و کرونوآمپرومتری بررسی شد. الکنرود MF/SPE فعالیت الکتروکاتالیستی برجستهای را برای تعیین ولتامتری EP نشان داد. تحت شرایط بهینه، جریان پیک وابستگی خطی با غلظت EP در محدوده 1/0 تا0/600 میکرومولار نشان داد و حد تشخیص (LOD) 02/0 میکرومولار تعیین شد. علاوه بر این، حسگر MF/SPE مزایایی از جمله تکرارپذیری، تکثیرپذیری، پایداری، ارزان بودن و قابلت کاربردهای عملی را دارد. در پایان، حسگر مبتنی بر MF/SPE برای تعیین EP در نمونههای ادرار مورد استفاده قرار گرقت و نتایج رضایت بخشی بدست آمد.
کلیدواژهها
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