Journals / Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi / 2018 / Cilt: 20 - Sayı: 59

Electrochemical Vanillin Determination on Gold Nanoparticles Modified Multiwalled Carbon Nanotube Electrode

Altın Nanoparçacık Modifiye Çok Duvarlı Karbon Nanotüp Elektrotlarda Vanilin Tayini

Pages
461–470
Publication Date
2022-10-15
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The satisfactory results show that the Au–MWCNT/GCE has promising potential in sensor applications.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, modified electrodes were prepared for Vanilline (VAN) determination.
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Key Findings & Data:The calibration graph consisted of two linear segments of 7.0x10-86.5x10-6 mol L-1 and 7.0x10-6-7.5x10-5 mol L-1 with a detection limit of 3.8x10-8 mol L-1 that obtained from differential pulse studies.
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Conclusion & Impact:The satisfactory results show that the Au–MWCNT/GCE has promising potential in sensor applications.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In this study, modified electrodes were prepared for Vanilline (VAN) determination. Multiwalled carbon nanotubes (MWCNT) were functionalized with acid treatment and then gold nanoparticles were electrodeposited on the MWCNTs by applying several repetitive scans in order to form gold nanoparticles modified multiwalled carbon nanotube glassy carbon electrode (Au–MWCNT/GCE) surface. The morphology and structure of electrode surfaces were characterized by scanning electron microscopy (SEM). The resulting Au–MWCNT/GC electrode showed efficient behavior to VAN electro-oxidation. The calibration graph consisted of two linear segments of 7.0x10-86.5x10-6 mol L-1 and 7.0x10-6-7.5x10-5 mol L-1 with a detection limit of 3.8x10-8 mol L-1 that obtained from differential pulse studies. The practical applicability of the proposed modified electrode was tested for the determination of VAN in commercial ice cream and milk powder. The satisfactory results show that the Au–MWCNT/GCE has promising potential in sensor applications.

Özet

Bu çalışmada, Vanilin(VAN) tayini için modifiye elektrotlar hazırlanmıştır. Çok duvarlı karbon nanotüpler (MWCNT) asit muamelesi ile foksiyonalize edilmiş ve ardından altın nanoparçacıklar ardışık tekrarlanan taramalar ile altın nanoparçacık modifiye çok duvarlı karbon nanotüp camımsı karbon elektrot (Au-MWCNT/GCE) oluşturmak üzere elektrokimyasal olarak biriktirilmiştir. Elektrot yüzey yapısı ve morfolojisi taramalı electron mikroskopu (SEM) ile karakterize edilmiştir. Elde edilen Au-MWCNT/GC elektrot VAN’nin yükseltgenmesine iyi bir yanıt vermiştir. Diferansiyel puls çalışmalarından elde edilen kalibrasyon eğrisi iki doğrusal aralık içerir ve bu aralıklar 7.0x10-8-6.5x10-6 mol L-1 ve 7.0x10-6-7.5x10-5 mol L-1 dir ve belirtme alt sınırı ise 3.8x10-8 mol L-1dir. Önerilen modifiye elektrodun pratik uygulaması ticari dondurma ve süt tozundaki VAN tayini ile test edimiştir. Tatmin edici sonuçlar, Au– MWCNT/GCE nin sensör uygulamaları için umut vadeden potansiyele sahip olduğunu göstermiştir.

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Cite This Article

KOÇAK, Ç. C., KARABİBEROĞLU, Ş. (2022). Electrochemical Vanillin Determination on Gold Nanoparticles Modified Multiwalled Carbon Nanotube Electrode. Dokuz Eylül Üniversitesi Mühendislik Fakültesi Fen ve Mühendislik Dergisi, Cilt: 20 - Sayı: 59, 461–470. https://ajindex.com/articles/491467

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