A Novel and Highly Sensitive Reduced Graphene Oxide Modified Electrochemical Sensor for the Determination of Chlorpyrifos in Real Sample

Abstract

Bu çalışmada, klorpirifosun (CPF) voltametrik davranışı, indirgenmiş grafen oksit modifiye camsı karbon elektrot (RGO / GCE) kullanılarak incelenmiştir. Hummers'ın yöntemiyle hazırlanan grafen oksit ve indirgenmiş grafen oksit ürünlerinin karakterizasyonunda FT-IR, XRD ve TEM yöntemleri kullanıldı. CPF'nin elektrokimyasal karakterizasyonu, döngüsel voltametri (CV) ve diferansiyel puls voltametri (DPV) ile belirlendi. CPF'nin belirlenmesi için RGO / GCE üzerinde diferansiyel darbeli adsorptif sıyırma voltametrisi (DPAdSV) yapıldı. CPF'nin DPAdSV yöntemi ile kalibrasyon grafiği 5.19x10-7-8.12x10-6 M ve 8.12x10-6-2.18x10-3 M ile 1.56x10-7 M LOD olmak üzere iki çalışma aralığı vermiştir. RGO / GCE'de musluk suyu eklenmiş klorpirifos geri kazanımı% 101.0 olmuştur. Sonuç olarak, gerçek numunelerde kullanılabilen CPF tayini için seçici ve duyarlı bir ürün geliştirilmiştir

Keywords

• Chlorpyrifos
• Modified electrode
• Reduced graphene oxide

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