Copper nanoparticles and carbon nanotubes-based electrochemical sensing system for fast identification of tricresyl-phosphate in aqueous samples and air

2009 ◽  
Vol 140 (1) ◽  
pp. 92-97 ◽  
Author(s):  
Valber A. Pedrosa ◽  
Rigved Epur ◽  
Jessica Benton ◽  
Ruel A. Overfelt ◽  
Aleksandr L. Simonian
Keyword(s):  
Carbon Nanotubes ◽  
Copper Nanoparticles ◽  
Electrochemical Sensing ◽  
Aqueous Samples ◽  
Tricresyl Phosphate ◽  
Sensing System ◽  
Fast Identification

Electrochemical Sensing System for Detection of Tricresyl-phosphate

2011 ◽  
Author(s):  
Xiaoyun Yang ◽  
Ruel Overfelt ◽  
Alice Zitova ◽  
Aleksandr Simonian ◽  
Jeffrey Kirsch ◽  
...  
Keyword(s):  
Electrochemical Sensing ◽  
Tricresyl Phosphate ◽  
Sensing System

Portable and remote electrochemical sensing system for detection of tricresyl phosphate in gas phase

2012 ◽  
Vol 161 (1) ◽  
pp. 564-569 ◽  
Author(s):  
Xiaoyun Yang ◽  
Alice Zitova ◽  
Jeffrey Kirsch ◽  
Jeffrey W. Fergus ◽  
Ruel A. Overfelt ◽  
...  
Keyword(s):  
Gas Phase ◽  
Electrochemical Sensing ◽  
Tricresyl Phosphate ◽  
Sensing System

Multiwalled Carbon Nanotubes Covered with Cobalt (II) Phthalocyanine by In Situ Synthesis and its Electrochemical Sensing Performance towards DA and UA

2014 ◽  
Vol 809-810 ◽  
pp. 43-52
Author(s):  
Hua Hua Wang ◽  
Nan Li ◽  
Kai Li ◽  
Yuan Bu ◽  
Wen Le Dai ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Multiwalled Carbon Nanotubes ◽  
Photoelectron Spectroscopy ◽  
Simultaneous Detection ◽  
Thick Layer ◽  
Electrochemical Sensing ◽  
Multiwalled Carbon ◽  
X Ray ◽  
Platinum Particles

Multiwalled carbon nanotubes (MWCNTs) as an excellent supporter covered with a thick layer of cobalt phthalocyanine (CoPc) were prepared by in-situ synthesis. Platinum particles were adopted to enhance the conductivity of CoPc-MWCNTs. The final nanocomposite Pt-CoPc-MWCNTs was characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy (TEM). Strong aromatic π-π stacking between MWCNTs and CoPc made CoPc in-situ forming on MWCNTs. With homogeneous thickness of CoPc covered on the MWCNTs and Pt particles equally distributed, the nanocomposite was used as electrocatalyst. The electrochemical properties of the composite got researched by casting the dispersion of Pt-CoPc-MWCNTs on the glassy carbon electrode. Compared with other modified electrodes, Pt-CoPc-MWCNTs/GC electrode exhibited excellent electrochemical activity towards dopamine (DA) and uric acid (UA). Linear responses for DA and UA were obtained in the ranges of 5 to 170 μM and 5 to 100 μM, and limits of detection were 2.6 and 1.4 μM (S/N= 3), respectively. Simultaneous detection of DA and UA in the presence of ascorbic acid (AA) also displayed selective property, with no interference to each other.

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