Journals / Hacettepe Journal of Biology and Chemistry / 2016 / Cilt: 44 - Sayı: 3

Electroanalysis of Pyrocatechol in River Water Over Pt Electrode Modified with Polyaniline-Poly(3-methylthiophene)- Poly(3,3’-diaminobenzidine) Film

Polianilin-Poli(3-metiltiyofen)-Poli(3,3’-diaminobenzidin) Filmi ile Modifiye Edilmiş Pt Elektrot ile Nehir Suyunda Pirokatekolün Elektroanalizi

Pages
339–347
Publication Date
2022-10-17
DOI
—
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AI Summary & Key Takeaways

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

Without matrix effect, determination of pyrocatechol at lower peak potential (0.50 V) than oxidation peak potential (0.62 V) was carried out.

📌 3 Key Takeaways

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Objective & Hypothesis:Determination of pyrocatechol was successfully achieved over polyaniline - poly(3-methylthiophene) - poly(3,3’-diaminobenzidine) (PANI - $P_3$MT - PDAB) coated Pt disc electrode using amperometric I-t method in $NaHSO_4/Na_2SO_4$ (SBS) (pH 2.0) solution.
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Key Findings & Data:The potential range of 0.45 V-0.65 V were implemented and a potential of 0.50 V was found to be an optimum potential.
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Conclusion & Impact:Without matrix effect, determination of pyrocatechol at lower peak potential (0.50 V) than oxidation peak potential (0.62 V) was carried out.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Determination of pyrocatechol was successfully achieved over polyaniline - poly(3-methylthiophene) - poly(3,3’-diaminobenzidine) (PANI - $P_3$MT - PDAB) coated Pt disc electrode using amperometric I-t method in $NaHSO_4/Na_2SO_4$ (SBS) (pH 2.0) solution. The potential range of 0.45 V-0.65 V were implemented and a potential of 0.50 V was found to be an optimum potential. Analytical parameters (LOD, LOQ and linear range) were 7.37×$10^{-5}$, 2.47×10-4 and 2.47×$10^{-4}$-25.0 mmol.$L^{-1}$, respectively. Furthermore, assay of pyrocatechol was performed in artificially contaminated river water samples over modified electrode at the pyrocatechol concentrations of 5.0 and 10.0 mmol.L-1 to check on the matrices interference and accuracy of the developed method. Recovery values were 101.1% and 101.2%, respectively. Without matrix effect, determination of pyrocatechol at lower peak potential (0.50 V) than oxidation peak potential (0.62 V) was carried out.

Özet

$NaHSO_4/Na_2SO_4$ (SBS) (pH 2.0) çözeltisi içerisinde amperometrik I-t yöntemi kullanılarak polianilin-poli(3- metiltiyofen)-poli(3,3’-diaminobenzidin) (PANI - 4P_3MT$ - PDAB) kaplı Pt disk elektrot üzerinden pirokatekol tayini başarılı bir şekilde gerçekleştirildi. 0,45 V–0,65 V aralığında potansiyel değerleri uygulandı ve 0.50 V optimum potansiyel olarak belirlendi. Analitik parametreler (gözlenebilme sınırı, alt tayin sınırı ve doğrusal çalışma aralığı) sırasıyla 7.37×10^{-5}$, 2.47×10^{-4}$ ve 2.47×10^{-4}$-25.0 mmol.$L^{-1}$ olarak bulundu. Ayrıca, matriks girişimini ve geliştirilen yöntemin doğruluğunu test etmek için, pirokatekol derişimi 5.0 ve 10.0 mmol.L-1 olacak şekilde yapay olarak kirletilmiş nehir sularında pirokatakol tayini gerçekleştirildi. Geri kazanım değerleri sırasıyla % 101.1 ve % 101.2, olarak elde edildi. Pirokatekolün yükseltgenme potansiyelinden (0.62 V) daha düşük potansiyelde (0.50 V) matriks etkisi olmaksızın pirokatakol tayini gerçekleştirildi.

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Cite This Article

Kavanoz, M., Ülker, E. (2022). Electroanalysis of Pyrocatechol in River Water Over Pt Electrode Modified with Polyaniline-Poly(3-methylthiophene)- Poly(3,3’-diaminobenzidine) Film. Hacettepe Journal of Biology and Chemistry, Cilt: 44 - Sayı: 3, 339–347. https://ajindex.com/articles/529121

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