نتایج جستجو برای: electrochemical determination

تعداد نتایج: 299727  

2014
Simonetta Palmas Michele Mascia Annalisa Vacca Claudia Espro Nicola Donato Signorino Galvagno Davide Aloisio Salvatore G. Leonardi Giovanni Neri

A three electrodes planar electrochemical sensor, based on CuO nanowires growth “in situ” on Cu working electrode, was fabricated by a simple micromachining technique and employed for the non-enzymatic determination of glucose. The microstructural and morphological characteristics of the modified electrode was investigated by XRD and SEM analysis. Cyclic voltammetry and chronoamperometric measu...

Abstract: In this study, we were investigated behavior the electrochemical reductionof nitrite at a hemoglobin (Hb) immobilized on glass carbon electrode (GCE) containingpolypyrol nanofiber (ppy) films. Polypyrrole (PPy) nanofibers have been constructed onGCE applying electrochemical technique, and can to deposit diverse polymers onminiaturized electrodes with this commo...

Journal: :iranian journal of pharmaceutical research 0
sadegh akbari chermini young researchers club, branch, majlesi branch, islamic azad university, isfahan, iran hassan karimi-maleh graduate university of advanced technology, kerman, iran mohsen keyvanfard department of chemistry, majlesi branch, islamic azad university, isfahan, iran

the electrocatalytic oxidation of captopril (cap) was studied by modified carbon nanotubes paste electrode in the presence of isoproterenol (ispt) using cyclic voltammetry (cv), chronoamperometry and square wave voltammetry (swv). also, the values of catalytic rate constant (k), and electron transfer coefficient (α) for cap were calculated. the mechanism of ca electrochemical behavior at the mo...

Journal: :Talanta 2012
V Rahemi J J Vandamme J M P J Garrido F Borges C M A Brett E M P J Garrido

An electrochemical sensor for the determination of the chlorophenoxy herbicide MCPA has been developed, based on a combination of multi-walled carbon nanotubes with incorporated β-cyclodextrin and a polyaniline film modified glassy carbon electrode. The proposed molecular host-guest recognition based sensor has a high electrochemical sensitivity for the determination of MCPA. The electrochemica...

Journal: :physical chemistry and electrochemistry 0
elham eslami department of chemistry, kazerun branch, islamic azad university, kazerun, iran fatemeh farjam department of chemistry, marvdasht branch, islamic azad university, marvdasht, iran

we used an effective electrochemical sensor for the determination of imipramine at ph 7.2 using a carbon nanocomposite electrode. the electrode has been designed by incorporation of montmorillonite nanoclay into the carbon ionic liquid electrode. the high sensitivity of 1.714 μa (μm)-1, two linear calibration ranges of 0.1–2 μm and 2-40 μm, and detection limit of 19 nm were achieved. the relati...

Journal: :The Analyst 2015
Athanasios V Kolliopoulos Dimitrios K Kampouris Craig E Banks

A novel indirect electrochemical protocol for the electroanalytical detection of phenols is presented for the first time. This methodology is demonstrated with the indirect determination of the target analytes phenol, 2-chlorophenol, 4-chlorophenol and 2,4-dichlorophenol through an electrochemically adapted optical protocol. This electrochemical adaptation allows the determination of the above ...

2015
Kunjing Li Yinfeng Li Lu Wang Lingxi Yang Baoxian Ye

10-Hydroxycamptothecin; Electrochemically reduced graphene oxide; Determination; Electrochemical properties Abstract The electrochemical properties of 10-Hydroxycamptothecin were investigated systematically at a reduced graphene oxide modified glassy carbon electrode. A new pair of redox peaks of 10-Hydroxycamptothecin was reported for the first time with quasi-reversible process driven by adso...

2015
Athanasios V. Kolliopoulos Dimitrios K. Kampouris Craig E. Banks

A novel indirect electrochemical protocol for the electroanalytical detection of phenols is presented for the first time. This methodology is demonstrated with the indirect determination of the target analytes phenol, 2-chlorophenol, 4-chlorophenol and 2,4-dichlorophenol through an electrochemically adapted optical protocol. This electrochemical adaptation allows the determination of the above ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید