کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1162881 1490913 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Novel reagentless paper-based screen-printed electrochemical sensor to detect phosphate
ترجمه فارسی عنوان
سنسور الکتروشیمیایی چاپی مبتنی بر کاغذ بدون رطوبت برای تشخیص فسفات
کلمات کلیدی
پلت فرم الکتروکنترلال مبتنی بر کاغذ، موم چاپ، الکترود چاپ شده روی صفحه نمایش، بدون واکنش فسفات، روش دوستانه
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Devices were prepared coupling wax/screen-printing technologies.
• Facile, cost-effective, and rapid manufacturing route.
• Impregnated-paper stores all the necessary reagents.
• No sample treatment required to detect phosphate.
• Concept easy extensible to different analytes.

Herein we describe a novel reagentless paper-based electrochemical phosphate sensor, manufactured with a simple and inexpensive approach. By following three easy steps, consisting of wax patterning, paper chemical modification, and electrode screen-printing, the filter paper provides an effective electroanalytical platform to sense phosphate ions in standard solutions and real samples (river water). The electrochemical properties of the paper-based platform were evaluated, firstly, by using ferricyanide as a redox mediator, proving no analyte-entrapment due to the cellulose lattice. Then, the reference colorimetric method for phosphate ions, which is based on the formation of phosphomolybdic complex, was successfully adapted to a reagentless electrochemically paper-based platform. This novel and highly sustainable configuration readily allows for the determination of phosphate ions with high reproducibility and long storage stability, achieving a detection limit of 4 μM over a wide linear range up to 300 μM. This in-house approach would be able to generically develop an affordable in situ and user-friendly sensing device without the addition of any reagent, to be applied for a broad range of analytes.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Analytica Chimica Acta - Volume 919, 5 May 2016, Pages 78–84
نویسندگان
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