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تعیین ولتامتری هیدروکلروتیازید در الکترودخمیر کربن اصلاح شده نانوکامپوزیت SnO2-NiO / مایع یونی | ||
| شیمى کاربردى روز | ||
| دوره 18، شماره 69، دی 1402، صفحه 21-32 اصل مقاله (984.5 K) | ||
| نوع مقاله: مقاله علمی پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22075/chem.2023.27693.2082 | ||
| نویسندگان | ||
| مهزاد فیروزی1؛ مصطفی نجفی* 2؛ حسین رجبی2 | ||
| 1گروه شیمی، واحد تهران جنوب، دانشگاه آزاد اسلامی، تهران، ایران | ||
| 2گروه شیمی، دانشکده علوم، دانشگاه امام حسین، تهران، ایران | ||
| تاریخ دریافت: 11 شهریور 1401، تاریخ بازنگری: 22 بهمن 1401، تاریخ پذیرش: 15 فروردین 1402 | ||
| چکیده | ||
| در اینجا، نانوکامپوزیت SnO2-NiO از طریق روش هیدروترمال تهیه شد و با تکنیک‌های مختلف شامل پراش پرتو ایکس (XRD)، روبشی نشر میدانی میکروسکوپ الکترونی (FESEM) و طیف‌سنجی انرژی-پراکنده پرتو ایکس (EDS) مشخص شد. تصویر FESEM ذراتی را با اندازه در حدود 20 تا 130 نانومتر در قطر نشان داد. اکسیداسیون الکتروشیمیایی هیدروکلروتیازید (HCTZ) در الکترود خمیر کربن اصلاح شده با نانوکامپوزیت SnO2-NiO و مایع یونی (1-بوتیل-3-متیل ایمیدازولیوم هگزافلوئوروفسفات (BMIM-PF6)) (SnO2-NiO/IL/CPE) در بافر فسفات با (PB) pH 8، با استفاده از ولتامتری چرخه ای، ولتامتری روبش خطی، ولتامتری پالس تفاضلی و کرونوآمپرومتری ارزیابی شد. SnO2-NiO/IL/CPE رفتار الکتروکاتالیستی خوبی را نسبت به اکسیداسیون هیدروکلروتیازید نشان داد. جریانهای پیک آندی با غلظت HCTZ افزایش یافت و دو محدوده دینامیکی خطی را از 0.01 تا 0.1 میکرومولار و 0.1 تا 100 میکرومولار و حد تشخیص 0.002 میکرومولار (S/N = 5) تحت شرایط بهینه نشان داد. حسگر الکتروشیمیایی معرفی شده برای تعیین HCTZ در فرمولاسیون دارویی و نمونه بیولوژیکی مورد استفاده قرار گرفت. | ||
| کلیدواژه‌ها | ||
| "هیدروکلروتیازید"؛ "مایع یونی"؛ "ولتامتری"؛ "اکسیدقلع-اکسید نیکل"؛ "الکترود اصلاح شده" | ||
| عنوان مقاله [English] | ||
| Voltammetric Determination of Hydrochlorothiazide at SnO2-NiO Nanocomposite/Ionic Liquid Modified Carbon Paste Electrode | ||
| نویسندگان [English] | ||
| Mahzad Firouzi1؛ Mostafa Najafi2؛ Hossein Rajabi2 | ||
| 1Department of Chemistry, South Tehran Branch, Islamic Azad University, Tehran, Iran | ||
| 2Department of Chemistry, Faculty of Science, Imam Hossein University, Tehran, Iran | ||
| چکیده [English] | ||
| Herein, SnO2-NiO nanocomposite was prepared via a hydrothermal method and characterized by various techniques consisting X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy (EDS). The FESEM image showed particles with the size at about 20–130 nm in diameters. The electrochemical oxidation of hydrochlorothiazide (HCTZ) at a carbon paste electrode modified with SnO2-NiO nanocomposite and an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate (BMIM-PF6)) (SnO2-NiO/IL/CPE) was evaluated in phosphate buffer (PB) pH 8, by using cyclic voltammetry, linear sweep voltammetry, differential pulse voltammetry and chronoamperometry. The SnO2-NiO/IL/CPE indicated a good electrocatalytic behavior towards to oxidation of hydrochlorothiazide. The anodic peak currents were increased with the HCTZ concentration and indicated two linear dynamic range from 0.01 to 0.1 µM and 0.1 to 100 µM and a detection limit of 0.002 µM (S/N = 5) under the optimized conditions. The introduced electrochemical sensor was utilized for the determination of HCTZ in the pharmaceutical formulations and biological sample. | ||
| کلیدواژه‌ها [English] | ||
| Hydrochlorothiazide, Ionic liquid (BMIM-PF6), Voltammetry, SnO2-NiO, Nanocomposite, modified electrode | ||
| مراجع | ||
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