carbon paste electrode graphene

An electrochemical sensor for nanomolar detection of

03/06/2021· Oren, T. & Anık, U. Voltammetric determination of caffeine by using gold nanoparticle-glassy carbon paste composite electrode. Measurement 106 , …

{Electroalytic determination of captopril using a

Abstract: A carbon paste electrode (CPE) was modified with N-(ferrocenyl- methylidene)fluorene-2-amine and graphene/ZnO nanocomposite. The electro-oxidation of captopril (CAP) at the surface of the modified electrode was studied using electrochemical approaches. The electrochemical study of the

Graphene nanoplatelets carbon nanotube mixture paste

Graphene nanoplatelets carbon nanotubes mixture paste/dispersion of research and Industrial grade in bulk quantity with worldwide shipping at low price.

Carbon Paste Electrodes Modified with Graphene Oxides

Atomic force microscopy was used to characterize electrodes surfaces. The voltammetric study of thioguanine (TG) was comparatively investigated on bare, graphene oxide and reduced graphene oxide modified carbon paste electrodes using cyclic (CV) and …

Electrochemical behavior of graphene doped carbon paste

Abstract In present paper, the graphene doped carbon paste electrode (CPE) was firstly prepared with the addition of graphene into the carbon paste mixture. Compared with conventional CPE, an improved electrochemical response of graphene doped CPE toward the redox couple of Fe(CN) 6 3−/4− was demonstrated owing to the excellent electrical conductivity of graphene.

An electrochemical sensor for nanomolar detection of

03/06/2021· Oren, T. & Anık, U. Voltammetric determination of caffeine by using gold nanoparticle-glassy carbon paste composite electrode. Measurement 106 , …

An electrochemical sensor for nanomolar detection of

03/06/2021· Oren, T. & Anık, U. Voltammetric determination of caffeine by using gold nanoparticle-glassy carbon paste composite electrode. Measurement 106 , …

New carbon paste electrode modified with graphene/TiO2

01/02/2018· In this study, a new modified electrode was proposed to measure chlorpromazine hydrochloride (CPH). Carbon paste electrode was modified with vanadium pentoxide (V 2 O 5) and titanium dioxide (TiO 2) nanoparticles and graphene (TVGCPE).Cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods were used to analyze the prepared electrode.

Studies on Carbon Materials Produced from Salts with

01/05/2021· In recent works on modified carbon paste electrodes , carbon nanotubes and reduced graphene oxide have been presented as frequently used modifiers. The products obtained in magnesiothermic process were found to contain largely the turbostratic carbon forming a petal-like graphene material.

A disposable screen printed graphene–carbon paste

The oxidation signals for H 2 O 2, NADH and K 4 Fe(CN) 6 of the SPGE with the optimal graphene concentration are found to be ∼2.0, ∼1.8 and ∼1.7 times higher than those of a screen printed carbon paste electrode, respectively. In addition, excellent analytical features with relatively wide dynamic ranges, high sensitivities, low detection

Nanomaterial-Based Carbon Paste Electrodes for

16/04/2019· Carbon paste electrodes (CPEs) modified with different carbon nanomaterials, namely, glassy carbon powder (GCE), multiwall carbon nanotubes (MWCNTs), single-walled carbon nanotubes (SWCNTs), graphene nanosheets (Gr), and graphene oxides (GO) were tested.

Flake and Multilayer Graphene Paste Electrodes

18/03/2020· two working paste electrodes based on selected carbon materials. The aim of the present research was to compare the suitability of graphite flakes and multilayer graphene for the production of paste electrodes. Comparative tests of the obtained paste electrodes were conducted using the acetaminophen as a model compound.

Electrochemical behavior of graphene doped carbon paste

Abstract In present paper, the graphene doped carbon paste electrode (CPE) was firstly prepared with the addition of graphene into the carbon paste mixture. Compared with conventional CPE, an improved electrochemical response of graphene doped CPE toward the redox couple of Fe(CN) 6 3−/4− was demonstrated owing to the excellent electrical conductivity of graphene.

An electrochemical sensor for nanomolar detection of

03/06/2021· Oren, T. & Anık, U. Voltammetric determination of caffeine by using gold nanoparticle-glassy carbon paste composite electrode. Measurement 106 , …

Carbon Paste Electrodes | Analytical Chemistry

Synthesis and characterization of the thermally reduced graphene oxide in argon atmosphere, and its appliion to construct graphene paste electrode as a naptalam electrochemical sensor. Analytica Chimica Acta 2018, 1035 , 22-31.

Studies on Carbon Materials Produced from Salts with

01/05/2021· In recent works on modified carbon paste electrodes , carbon nanotubes and reduced graphene oxide have been presented as frequently used modifiers. The products obtained in magnesiothermic process were found to contain largely the turbostratic carbon forming a petal-like graphene material.

Graphene/NiO modified carbon paste electrode for the

Nanoplatelets of graphene (Gr) were obtained by the thermal exfoliation of graphite oxide prepared by modified Hummers and Offeman method. Nickel Oxide (NiO) nanoparticles of crystallite size 6.1 nm with a porous structure was synthesised by solution coustion method (SCS). Carbon paste electrode …

Studies on Carbon Materials Produced from Salts with

01/05/2021· In recent works on modified carbon paste electrodes , carbon nanotubes and reduced graphene oxide have been presented as frequently used modifiers. The products obtained in magnesiothermic process were found to contain largely the turbostratic carbon forming a petal-like graphene material.

Simultaneous determination of bisphenol A and hydroquinone

17/05/2016· Fabriion of carbon paste electrode and graphene doped carbon paste electrode. Graphene was prepared by reduction of GO with references’ method [38, 39]. The unmodified CPE was prepared by mixing 1.8 g of graphite powder and 0.60 mL of paraffin oil thoroughly in a mortar to form a homogeneous carbon paste.

Electrochemical aptasensor for activated protein C using a

01/12/2019· An activated protein C aptamer (-apt) was covalently immobilized on the surface of a carbon paste electrode modified with gold nanoparticle – chitosan /graphene paste (AuNPs-Chi/Gr). The AuNPs-Chi/Gr paste increased electrochemical current and immobilized the aptamer on the electrode surface.

A Novel Reduced Graphene Oxide Modified Carbon Paste

A novel promising carbon paste electrode with excellent potentiometric properties was prepared for the analysis of trihexyphenidyl hydrochloride (THP), the acetylcholine receptor and an anticholinergic drug in real samples. It contains 10.2% trihexyphenidy-tetraphenylborate ionic pair as the electroactive material, with the addition of 3.9% reduced graphene oxide and 0.3% of anionic additive

A Novel Reduced Graphene Oxide Modified Carbon Paste

A novel promising carbon paste electrode with excellent potentiometric properties was prepared for the analysis of trihexyphenidyl hydrochloride (THP), the acetylcholine receptor and an anticholinergic drug in real samples. It contains 10.2% trihexyphenidy-tetraphenylborate ionic pair as the electroactive material, with the addition of 3.9% reduced graphene oxide and 0.3% of anionic additive

An Electrochemical Sensor based on Reduced Graphene oxide

optimization conditions. This electrode obtains good and satisfactory results in the determination of acetaminophen in a commercial tablet. Keywords-Reduced graphene oxide, Silver nanoparticles, Modified carbon paste electrode, Acetaminophen . 1. INTRODUCTION . Graphene (Gr) is the name of a two-dimensional sheet of sp. 2-hybridized carbon [1

Simultaneous determination of bisphenol A and hydroquinone

17/05/2016· Fabriion of carbon paste electrode and graphene doped carbon paste electrode. Graphene was prepared by reduction of GO with references’ method [38, 39]. The unmodified CPE was prepared by mixing 1.8 g of graphite powder and 0.60 mL of paraffin oil thoroughly in a mortar to form a homogeneous carbon paste.

Carbon Graphene Screen Print Ink Paste | Nanochemazone

Carbon Graphene Paste. Nanochemazone® provides a wide range of carbon-graphite working electrodes Screen Printing Paste for all forms of electrochemical analysis including cyclic voltammetry, chronoamperometry, and potentiometric methods. The paste is highly thixotropic which gives it very good definition on printing.

A Novel Reduced Graphene Oxide Modified Carbon Paste

A novel promising carbon paste electrode with excellent potentiometric properties was prepared for the analysis of trihexyphenidyl hydrochloride (THP), the acetylcholine receptor and an anticholinergic drug in real samples. It contains 10.2% trihexyphenidy-tetraphenylborate ionic pair as the electroactive material, with the addition of 3.9% reduced graphene oxide and 0.3% of anionic additive

Graphene Oxide Modified Carbon Paste Electrode for Handy

Abstract. A precise and sensitive electrochemical sensor based on a simple graphene oxide modified carbon paste electrode (GO/CPE) was successfully fabried for simultaneous detection of epinephrine (EPN), uric acid (UA), and ascorbic acid (AA). The GO/CPE displays better electrochemical activity towards EPN by largely improving the current

A highly sensitive and selective sensor based on a

15/08/2017· A highly sensitive and selective sensor based on a graphene-coated carbon paste electrode modified with a computationally designed boron-eedded duplex molecularly imprinted hybrid merane for the sensing of lamotrigine. Wang H(1), Qian D(1), Xiao X(2), Gao S(3), Cheng J(4), He B(1), Liao L(1), Deng J(5).