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A two component transition metal oxide electrocatalyst for detection ultra-level of an organophosphorus pesticide in real samples | ||
| Iranian Journal of Analytical Chemistry | ||
| دوره 11، شماره 2 - شماره پیاپی 22، آذر 2024، صفحه 197-202 اصل مقاله (800.69 K) | ||
| نوع مقاله: Full research article | ||
| شناسه دیجیتال (DOI): 10.30473/ijac.2026.77031.1334 | ||
| نویسنده | ||
| Mohdokht Arjomand kermani* | ||
| هیات علمی تات | ||
| چکیده | ||
| Addressed herein, a two-component transition metal oxide nanocomposite, nickle/cobalt oxide, was synthesized via a hydrothermal method and characterized by X-ray diffraction and scanning electron microscopy. This material was then utilized to modify a pencil graphite electrode. The resulting sensor demonstrated exceptional performance and stability in detecting trace amounts of an organophosphorus pesticide residues present in several real samples. Using the as-prepared martial hybridized with graphene oxide pencil electrode, a broad linear concentration range(40-480nM) and an extremely low detection limit (21nM) were successfully achieved. Also, the fabricated low-cost sensor showed good reproducibility and stability for analysis of chlorpyrifos.Keywords: Organophosphorus pesticide, Electrocatalyst, Sensor, Pencil electrode | ||
| کلیدواژهها | ||
| organophosphorus pesticide؛ electrocatalyst؛ Sensor؛ Pencil electrode | ||
| عنوان مقاله [English] | ||
| یک الکتروکاتالیست دو جزئی از اکسیدهای فلزی واسطه برای تعیین مقادیر بسیار کم یک آفتکش ارگانوفسفوره در نمونههای حقیقی | ||
| نویسندگان [English] | ||
| مهدخت ارجمند کرمانی | ||
| چکیده [English] | ||
| در این پژوهش، یک نانوکامپوزیت دو جزئی از اکسیدهای فلز واسطه ، متشکل از اکسید نیکل/کبالت، به روش هیدروترمال سنتز و مورد شناسایی قرار گرفت. این ماده سپس برای اصلاح یک الکترود گرافیتی مغز مداد به کار رفت. حسگر حاصل، عملکرد و پایداری چشمگیری در اندازه گیری مقادیر جزئی باقیمانده یک آفتکش اورگانوفسفره در تعدادی نمونه واقعی از خود نشان داد. با استفاده از الکترود مدادی ساختهشده از این ماده به صورت ترکیبشده با اکسید گرافن، محدوده خطی وسیعی از غلظت و همچنین حد تشخیص بسیار پایینی (۲۱ نانومولار) با موفقیت به دست آمد. همچنین این حسگر الکتروشیمایی توانست پایداری و تکرار پذیری خوبی از خود نشان دهد. در مجموع با ساخت این حسگر ارزانقیمت می توان به نتایج امیدوار کننده ای برای سنجش آفت کش ارگانوفسفره کلرپریفوس دست یافت. | ||
| کلیدواژهها [English] | ||
| آفت کش ارگانوفسفوره, الکتروکاتالیست, حسگر, الکترود مغز مداد | ||
| مراجع | ||
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آمار تعداد مشاهده مقاله: 28 تعداد دریافت فایل اصل مقاله: 22 |
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