Voltammetric Study of the Copper Pentacyanonitrosylferrate Adsorbed on the Silica Modified with a Poly(propylene)imine Hexadecylamine Dendrimer for Determination of Nitrite
Joint Authors
Do Carmo, Devaney Ribeiro
Gabriel, S.
Silvestrini, D. R.
Cumba, L. R.
De Oliveira Bicalho, Urquisa
Source
International Journal of Electrochemistry
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-05-08
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Poly(propylene)imine hexadecylamine dendrimer (DAB-Am-16) was anchored on the surface of 3-chloropropylsilyl silica gel and subsequently interacted with copper nitroprusside.
The composite was characterized by infrared (FTIR), energy dispersive X-ray (EDX), and cyclic voltammetry.
The above techniques confirmed the successful anchoring of the dendrimer on the silica gel modified surface and its interaction with copper nitroprusside.
The cyclic voltammogram of CuNPSD was found to exhibit two redox couples with (Eθ′)1 = 0.30 V and (Eθ′)2 = 0.78 V versus Ag/AgCl (KCl =1.0 mol L−1; v=20 mV s−1) attributed to the redox processes Cu(I)/Cu(II) and Fe(II)(CN)5NO/Fe(III)(CN)5NO, respectively.
The CuNPSD-modified graphite paste electrode was found to show a linear response of 5.0×10−4 to 9.0×10−3 mol L−1 for nitrite determination with a detection limit (DL) of 3.8×10−4 mol L−1 and an amperometric sensitivity of 25.0 mA/mol L−1.
The CuNPSD-modified graphite paste electrode was found to show a good electrochemical stability and an excellent response to the electrocatalytic oxidation of sodium nitrite.
American Psychological Association (APA)
Do Carmo, Devaney Ribeiro& Gabriel, S.& Silvestrini, D. R.& De Oliveira Bicalho, Urquisa& Cumba, L. R.. 2012. Voltammetric Study of the Copper Pentacyanonitrosylferrate Adsorbed on the Silica Modified with a Poly(propylene)imine Hexadecylamine Dendrimer for Determination of Nitrite. International Journal of Electrochemistry،Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-478817
Modern Language Association (MLA)
Do Carmo, Devaney Ribeiro…[et al.]. Voltammetric Study of the Copper Pentacyanonitrosylferrate Adsorbed on the Silica Modified with a Poly(propylene)imine Hexadecylamine Dendrimer for Determination of Nitrite. International Journal of Electrochemistry No. 2012 (2012), pp.1-8.
https://search.emarefa.net/detail/BIM-478817
American Medical Association (AMA)
Do Carmo, Devaney Ribeiro& Gabriel, S.& Silvestrini, D. R.& De Oliveira Bicalho, Urquisa& Cumba, L. R.. Voltammetric Study of the Copper Pentacyanonitrosylferrate Adsorbed on the Silica Modified with a Poly(propylene)imine Hexadecylamine Dendrimer for Determination of Nitrite. International Journal of Electrochemistry. 2012. Vol. 2012, no. 2012, pp.1-8.
https://search.emarefa.net/detail/BIM-478817
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-478817