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Electrochemical sensing of nicotine using CuWO4 decorated reduced graphene oxide immobilized glassy carbon electrode.
Karthika, A; Karuppasamy, P; Selvarajan, S; Suganthi, A; Rajarajan, M.
Afiliación
  • Karthika A; PG & Research Department of Chemistry, Thiagarajar College, Madurai 625009, Tamilnadu, India.
  • Karuppasamy P; Anna University Regional Campus - Tirunelveli, Tirunelveli 627007, Tamilnadu, India.
  • Selvarajan S; PG & Research Department of Chemistry, Thiagarajar College, Madurai 625009, Tamilnadu, India.
  • Suganthi A; PG & Research Department of Chemistry, Thiagarajar College, Madurai 625009, Tamilnadu, India; Mother Teresa Women's University, Kodaikanal 624 102, Tamilnadu, India. Electronic address: suganthiphd09@gmail.com.
  • Rajarajan M; Madurai Kamaraj University, Madurai 625 02, Tamilnadu, India. Electronic address: rajarajan_1962@yahoo.com.
Ultrason Sonochem ; 55: 196-206, 2019 Jul.
Article en En | MEDLINE | ID: mdl-30878204
A novel and selective electrochemical sensing of nicotine is studied using copper tungstate decorated reduced graphene oxide nanocomposite (CuWO4/rGO) nafion (Nf) immobilized GC electrode (GCE). The CuWO4/rGO nanocomposite is synthesized using sonication method and characterized by HR-TEM (High resolution transmission electron microscopy), SEM (Scanning electron microscopy), FT-IR (Fourier transform infrared spectroscopy), SAED (Selected area of electron diffraction pattern), XRD (X-ray diffraction), Raman spectroscopy, Thermo gravimetric analysis (TGA) and EDX (Energy dispersive X-ray diffraction) techniques. The CuWO4/rGO/Nf immobilized GCE shows better electrocatalytic response for the detection of nicotine as compared to bare GCE. A better selectivity and sensitivity is achieved using CuWO4/rGO/Nf immobilized GCE to detect 0.1 µM nicotine in the presence of 100-fold excess concentrations of different interferents. The present CuWO4/rGO/Nf immobilized GCE electrochemical sensor exhibits an ample range of sensing from 0.1 µM to 0.9 µM and the low detection limit is found to be 0.035 µM (S/N = 3). Comparable results are achieved for the determination of nicotine in various real samples such as cigarettes (Gold flake and Wills) and urine samples with improved recoveries.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ultrason Sonochem Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2019 Tipo del documento: Article País de afiliación: India Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Ultrason Sonochem Asunto de la revista: DIAGNOSTICO POR IMAGEM Año: 2019 Tipo del documento: Article País de afiliación: India Pais de publicación: Países Bajos