Sensitive determination of citrinin based on molecular imprinted electrochemical sensor
[ X ]
Tarih
2016
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In this report, a novel molecular imprinted voltammetric sensor based on glassy carbon electrode (GCE) modified with platinum nanoparticles (PtNPs) involved in a polyoxometalate (H3PW12O40, POM) functionalized reduced graphene oxide (rGO) was prepared for the determination of citrinin (CIT). The developed surfaces were characterized by using scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) method. CIT imprinted GCE was prepared via electropolymerization process of 80.0 mM pyrrole as monomer in the presence of phosphate buffer solution (pH 6.0) containing 20.0 mM CIT. The linearity range and the detection limit of the developed method were calculated as 1.0 x 10(-12)-1.0 x 10(-10) M and 2.0 x 10(-13) M, respectively. In addition, the voltammetric sensor was applied to rye samples. The stability and selectivity of the voltammetric sensor were also reported. (C) 2015 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Molecular imprinted sensor, Citrinin, Platinium nanoparticles, POM, Reduced graphene oxide
Kaynak
Applied Surface Science
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
362
