4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (Purpald®)'un Elektropolimerizayonu

Öz

Bu çalışmada, tek kullanımlık kalem grafit elektrot (PGE) üzerinde 4-amino-3-hidrazino-5-merkapto-1,2,4-triazolün (Purpald®) elektropolimerizasyonu tanımlanmış ve polimer film kaplı ve çıplak PG'nin elektroaktivitesi, pH 8 Britton Robinson (BR) tampon çözeltisi içerisinde hazırlanan  K3 [Fe (CN) 6] / K4 [Fe (CN) 6] çözeltisi ile test edildi. Purpald® filminin elektropolimerizasyonu döngülü voltammetri (CV) ile yapıldı. Elektrokimyasal empedans spektroskopisi (EIS) kullanılarak, Purpald® film kaplı elektrotun optimum koşulları belirlenmiştir. Purplad® ile modifiye edilmiş elektrotların iletkenliği, EIS tekniği ile çıplak ve p-fenilendiamin ile modifiye edilmiş PG elektrotları ile karşılaştırıldı. Sonuçlar, elektrosentezlenmiş poli (Purplad®) filmin, elektrokimyasal analizlerde ve sensör uygulamalarında kullanılacak elektrotların modifikasyonu için kullanılabileceğini göstermektedir.

Anahtar Kelimeler

• İletken polimer
• Elektropolimerizasyon
• Filmler
• Triazole Türevleri
• Kurşun Kalem Elektrotlar

Electropolymerization of 4-amino-3-hydrazino-5-mercapto-1,2,4- triazole (Purpald® )

Abstract

In this study electropolymerization of 4-amino-3-hydrazino-5-mercapto-1,2,4-triazole (Purpald^®) on the disposable pencil graphite electrode (PGE) was described and the electroactivity of the polymer film coated and naked PG electrodes were checked against K₃[Fe(CN)₆] / K₄[Fe(CN)₆] in pH 8 Britton‑Robinson (BR) buffer solution. The electropolymerization of Purpald^® film was performed with cyclic voltammetry (CV). The optimal conditions of Purpald^® film coated electrode were performed using electrochemical impedance spectroscopy (EIS). The conductivity of the Purplad^® modified electrodes was compared with bare and p-phenylenediamine modified PG electrodes by EIS technique. The results indicated that electrosynthesized poly(Purplad^®) film could be used for modification of electrodes to be used in electrochemical analysis and sensor applications.

Keywords

• Conducting polymer
• electropolymerization
• Films
• Triazole derivatives
• Pencil graphide electrode

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