1. Introduction - Hindawi Publishing Corporation
The reported electrochemical methods including graphite pencil electrode [20], nafion-ruthenium oxide pyrochlore modified glassy carbon electrode [21], mult-walled carbon nanotube and nafion modified glassy carbon electrode [22], carbon fiber ultra23, 24113].
Sensors | Free Full-Text | Laccase Biosensor Based on …
The study compared the biosensing properties of laccase biosensors based on carbon nanofibers (CNFs) and copper/carbon composite nanofibers (Cu/CNFs). The two kinds of nanofibers were prepared by electrospinning and carbonization under the same conditions. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Raman spectroscopy were employed to investigate the morphologies and
Electroalytic Response of Dopamine at a Carbon Paste Electrode …
tric responses of a bare carbon paste electrode (curves a, b) and Fc-modified CPE (curves c, d) without and with Figure 1. Cyclic voltamograms: at bare carbon paste electrode (a) in the absence, (b) in the presence of 1.2 mmol L–1 dopamine; and at 0.8 % Fc
Dietlind Telsnig''s research works | Karl-Franzens …
Dietlind Telsnig''s 4 research works with 58 citations and 412 reads, including: Amperometric biosensor for total monoamines using a glassy carbon paste electrode modified with human monoamine
Rhodium-Prussian Blue modified carbon paste electrode …
ABSTRACT Prussian Blue was deposited at carbon paste electrode surface from a solution containing 2.0 x 10-3 mol L-1 K 3 [Fe(CN) 6], 3.0 x 10-3 mol L-1 FeCl 3 and 1.0 x 10-2 mol L-1 HCl using two controlled potentials. To improve the stability of the
Study on electrochemical oxidation behaviors and the …
Compared with the bare carbon paste electrode, the oxidation and reduction peak separation (ΔE(p)) of HQ at the PACPE has been decreased from 578 to 83 mV. Under the optimum conditions, the oxidation peak current was linear with HQ concentration in the range of 4 × 10(-7) to 1.0 × 10(-4) M with the linear correlation coefficient of 0.9986.
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a novel ionic liquid/multiwall carbon nanotubes paste electrode. Materials Science and Engineering: C 32: 1912-1918. 24. Khaled E , Kamel MS, Hassan HNA Haroun AA Youssef AM et al. (2012) Novel multi walled carbon nanotubes/β-cyclodextrin
Voltammetric Determination of Penicillamine Using a …
After multiwall carbon nanotubes added to carbon paste, it can be seen that MWCNTs were distributed on the surface of electrode with special three-dimensional structure (Figure 1B), indiing that the MWCNTs were successfully modified on the MWCNTPE.
Trace determination of cadmium in water using anodic …
A three-electrode system containing the modified carbon paste electrode as working, an Ag/AgCl (3.0 mol L −1 KCl) as reference, and a platinum wire as auxiliary electrodes was used. Electrochemical characterization of the prepared electrodes was carried out using cyclic voltammetry.
Voltammetric Determination of Uric Acid at a …
Glassy carbon electrode modified by microcrystals of fullerene‐C 60 mediates the voltammetric determination of uric acid (UA) in the presence of ascorbic acid (AA). Interference of AA was overcome owing to the ability of pretreated fullerene‐C 60 ‐modified glassy carbon electrode. ‐modified glassy carbon electrode.
Bio-modified carbon paste electrode for the detection …
Bio-modified carbon paste electrodes (biosensors) are highly selective and sensitive compare to bare carbon paste electrodes, because microorganisms adsorb a wide range of chemical substances through their biosorption capacity (Yüce et al. 2010).
：Improving the detection of hydrogen peroxide of screen-printed carbon paste electrode…
Nonionic surfactants, such as Triton X-100 and Tween-20, were shown in this study to improve the electroatalytic activity of screen-printed carbon paste electrodes (SPCE) The electrochemical response of SPCE to hydrogen peroxide increased 8-10-fold with the
A Versatile and Ultrasensitive Electrochemical Sensing …
The excessive intake of chlorpromazine (CPZ) adversely affects human health profoundly, leading to a series of severe diseases such as hepatomegaly and dyskinesia. The rapid and precise detection of CPZ in real samples is of great significance for its effective surveillance. Herein, a versatile and sensitive electrochemical sensor was developed for the detection of antipsychotic drug CPZ based
Simultaneous determination of paracetamol and …
A promising electrochemical sensor was developed by electrodeposition of gold nanoparticles on a carbon paste (CP) electrode.This sensor electrode (CPE –Au nano) was used to determine paracetamol (ACOP) and some neurotransmitters, such as dopamine (DA), epinephrine (EP), norepinephrine (NP), levodopa (L-DOPA) and serotonin (5-HT).
Electroanalytical Performance of a Carbon Paste …
I. Noviandri and R. Rakhmana, “Carbon paste electrode modified with carbon canotubes and poly(3-aminophenol) for voltammetric determination of paracetamol,” International Journal of Electrochemical Science, vol. 7, pp. 4479–4487, 2012. View at:
Carbon Nanotube Paste Electrode with a Bismuth Film in Anodic …
175 Carbon Nanotube Paste Electrode with a Bismuth Film in Anodic Stripping Voltammetry for the Determination of Heavy Metals Matěj Stočes*, Tomáš Mikysek, and Ivan Švancara Department of Analytical Chemistry, Faculty of Chemical Technology, University
Determination of zinc and cadmium with characterized …
The carbon paste electrode represents a promising substrate for the electrochemical deposition of films. This electrode has several advantages, including easy modifiability and the capability to obtain a reproducible surface by simply polishing with paper 13 .
Sodium Alpha Olefin Sulfonate Modified Carbon Paste …
The carbon paste electrode was prepared by using 70% graphite powder and 30% silicone oil were mixed by hand to produce a homogeneous carbon paste. The paste was then packed into the cavity of a homemade carbon paste electrode and smoothed on a weighing paper.
Electro analytical thin film electrodes based on a Nafion …
A composite film of multi-walled carbon nanotubes (MWNTs) with Nafion(TM) ion exchanger merane is prepared by cast deposition on glassy carbon electrodes. The morphologies of the MWNT and MWNT/Nafion(TM) modified electrode are characterised by atomic force microscopy (AFM).
Electrochemical Biosensor Based on Carbon Ionic Liquid …
A new electrochemical biosensor was constructed by immobilization of hemoglobin (Hb) on a DNA modified carbon ionic liquid electrode (CILE), which was prepared by using 1‐ethyl‐3‐methylimidazolium tetrafluoroborate (EMIF4) as the modifier. UV‐vis absorption spectroscopic result indied that Hb remained its native conformation in the composite film. The fabried Nafion/Hb/DNA/CILE
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Anodic stripping voltammetric determination of lead in tap water at an ordered mesoporous Carbon-Nafion composite film electrode. Electroanalysis (2009). Anodic stripping voltammetric measurement of trace heavy metals at antimony film carbon paste electrode
Cyclic Voltammetric Investigation of Caffeine at Methyl …
Amare M, Admassie S (2012) Polymer modified glassy carbon electrode for the electrochemical determination of caffeine in coffee. Talanta 93: 122-128. Carolina Torres A, Barsan MM, Brett CMA (2014) Simple electrochemical sensor for caffeine based on carbon
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