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Journals / Karaelmas Fen ve Mühendislik Dergisi / 2021 / Cilt: 11 - Sayı: 2

Voltammetric Determination of Pendimethalin with Nafion-Graphene Modified Glassy Carbon Electrode

Nafyon-Grafenle Modifiye Edilmiş Camsı Karbon Elektrot ile Pendimethalinin Voltametrik Tayini

Berna KOÇAK
Hüseyin ÇELİKKAN
Pages
98–107
DOI
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AI Summary & Key Takeaways

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

For the 2nd peak current of pendimethalin, the working range of the calibration curve obtained by DPAdSV technique with n-GR/GCE was 1.96×10-9-7.53×10-4 M with the LOD value calculated as 1.05×10-9 M.

📌 3 Key Takeaways

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Objective & Hypothesis:In this study, the voltammetric behavior of pendimethalin was investigated at a glassy carbon electrode (GCE) and a nafion-graphene modified glassy carbon electrode (n-GR/GCE).
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Key Findings & Data:For the 1st peak current of pendimethalin, the working range of the calibration curve drawn by DPV technique with GCE was 1.56×10-6-1.08×10-3 M with the limit of detection (LOD) value calculated as 3.09×10-5 M.
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Conclusion & Impact:For the 2nd peak current of pendimethalin, the working range of the calibration curve obtained by DPAdSV technique with n-GR/GCE was 1.96×10-9-7.53×10-4 M with the LOD value calculated as 1.05×10-9 M.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Graphehe · Modified Electrode · Pendimethalin

Abstract

In this study, the voltammetric behavior of pendimethalin was investigated at a glassy carbon electrode (GCE) and a nafion-graphene modified glassy carbon electrode (n-GR/GCE). The electrochemical characterization of pendimethalin was carried out using cyclic voltammetry (CV) technique. For the determination studies performed with GCE, the differential pulse voltammetry (DPV) technique was employed, while the differential pulse adsorptive stripping voltammetry (DPAdSV) method was used for the determination studies with n-GR/GCE. First of all, optimal experimental conditions were established for both electrodes, a calibration curve was plotted and linear working ranges were identified. For the 1st peak current of pendimethalin, the working range of the calibration curve drawn by DPV technique with GCE was 1.56×10-6-1.08×10-3 M with the limit of detection (LOD) value calculated as 3.09×10-5 M. For the 2nd peak current of pendimethalin, the working range of the calibration curve created by DPV technique with GCE was 1.56×10-6-9.73×10-4 M and the LOD value was found to be 3.36×10-6 M. For the 1st peak current of pendimethalin, the working range of the calibration curve constructed by DPAdSV technique with n-GR/GCE was determined to be 1.76×10-6-4.01×10-4 M with the LOD value being 8.69×10-6 M. For the 2nd peak current of pendimethalin, the working range of the calibration curve obtained by DPAdSV technique with n-GR/GCE was 1.96×10-9-7.53×10-4 M with the LOD value calculated as 1.05×10-9 M.

Özet

Bu çalışmada, pendimethalinin voltametrik davranışı camsı karbon elektrot (GCE) ve nafyon-grafenle ile modifiye edilmiş camsı karbon elektrot (n-GR/GCE) ile incelenmiştir. Pendimethalinin elektrokimyasal karakterizasyonu dönüşümlü voltametri (CV) yöntemi ile belirlenerek, GCE ile yapılan tayin çalışmalarında diferansiyel puls voltametrisi (DPV), n-GR/GCE ile yapılan tayin çalışmalarında diferansiyel puls adsorptive sıyırma voltametrisi (DPAdSV) yöntemi kullanılmıştır. Öncelikle her iki elektrot için optimum deney şartları belirlenerek, kalibrasyon grafiği oluşturulmuş ve doğrusal çalışma aralığı belirlenmiştir. Pendimethalinin 1.pik akımı için GCE’la DPV yöntemiyle oluşturulan kalibrasyon grafiğinin çalışma aralığı 1,56×10-6-1,08×10-3M ve gözlenebilme sınırı (LOD) değeri 3,09×10-5 M olarak bulunmuştur. Pendimethalinin 2.pik akımı için GCE’la DPV yöntemiyle oluşturulan kalibrasyon grafiğinin çalışma aralığı 1,56×10-6-9,73×10-4M ve LOD değeri 3,36×10-6 M olarak bulunmuştur. Pendimethalinin 1.pik akımı için n-GR/GCE’la DPAdSV yöntemiyle oluşturulan kalibrasyon grafiğinin çalışma aralığı 1,76×10-6-4,01×10-4M ve gözlenebilme sınırı (LOD) değeri 8,69×10-6M olarak bulunmuştur. Pendimethalinin 2.pik akımı için n-GR/CKE’la DPAdS

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Cite This Article

KOÇAK, B., ÇELİKKAN, H. (2021). Voltammetric Determination of Pendimethalin with Nafion-Graphene Modified Glassy Carbon Electrode. Karaelmas Fen ve Mühendislik Dergisi, Cilt: 11 - Sayı: 2, 98–107. https://ajindex.com/articles/413864

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