scholarly journals Characterization of enzymatic glucose biosensor in buffer solution, in artificial saliva, and in potassium ferricyanide by linear sweep voltammetry

2018 ◽  
Author(s):  
Nurul Izzati Ramli ◽  
Mohd Firdaus Abd-Wahab ◽  
Wan Wardatul Amani Wan Salim
Keyword(s):  
Artificial Saliva ◽  
Linear Sweep Voltammetry ◽  
Glucose Biosensor ◽  
Potassium Ferricyanide ◽  
Linear Sweep ◽  
Buffer Solution

scholarly journals Electrochemical Approaches for Rapid Characterization of Oxidizable Compounds in Different Oak Alternatives

Beverages ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Jéremie Wirth ◽  
Davide Slaghenaufi ◽  
Stéphane Vidal ◽  
Maurizio Ugliano
Keyword(s):  
Linear Sweep Voltammetry ◽  
Wine Industry ◽  
Wine Aroma ◽  
Total Current ◽  
Strong Correlations ◽  
Tannin Content ◽  
Linear Sweep ◽  
Antioxidant Characteristics ◽  
Rapid Characterization

Oak alternatives (OAs) such as chips, granulates or staves, are becoming increasingly used in the wine industry. Although they are mostly considered for their contribution to wine aroma, they are also a source of phenolic compounds to be released in the wine, in particular ellagitannins contributing to wine mouthfeel and antioxidant characteristics. In the present study, we explore the potential for a rapid analytical method based on linear sweep voltammetry (LSV) combined with disposable sensors to provide a rapid measure of the oxidizable compounds present in different OAs, as well as their characterization. Strong correlations were found between the tannin content of different OAs and the total current measures during LSV analysis, allowing a rapid quantification of the oxidizable compounds present, mostly ellagitannin. Application of derivatization to raw voltammograms allowed extraction of a number of features that can be used for classification purposes, in particular with respect to OAs types (chips or staves) and degree of toasting.

Characterization of electrochemically formed thin layers of binary alloys by linear sweep voltammetry

1988 ◽  
Vol 18 (4) ◽  
pp. 511-520 ◽  
Author(s):  
V. D. Jović ◽  
R. M. Zejnilović ◽  
A. R. Despić ◽  
J. S. Stevanović
Keyword(s):  
Binary Alloys ◽  
Linear Sweep Voltammetry ◽  
Thin Layers ◽  
Linear Sweep

Preparation and Characterization of the Novel Ti/PbO2 Electrodes by Electrodeposition and Anodization

2011 ◽  
Vol 391-392 ◽  
pp. 1273-1277 ◽  
Author(s):  
Hong Yi Li ◽  
Yao Hui Zhang ◽  
Yong Chen ◽  
Wei Qing Han ◽  
Lian Jun Wang
Keyword(s):  
Oxygen Evolution ◽  
Linear Sweep Voltammetry ◽  
Xrd Analysis ◽  
High Oxygen ◽  
The Novel ◽  
Linear Sweep ◽  
Pbo2 Electrodes

The novel Ti/PbO2 electrodes have been prepared by electrodeposition and anodization. The electrodes were characterized by SEM, XRD and linear sweep voltammetry (LSV). The SEM and XRD analysis reveal that Sn in the Pb-Sn alloy changes the β-PbO2/α-PbO2 ratio and the structure of the PbO2 layer. Sn content in Pb-Sn alloy is beneficial for the formation of β-PbO2. LSV analysis shows that the novel Ti/PbO2 electrodes have high oxygen evolution potential, which can reach 1.75V.

Characterization of nanostructured ZnO grown by linear sweep voltammetry

2016 ◽  
Vol 148 ◽  
pp. 20-24 ◽  
Author(s):  
Lahoucine Atourki ◽  
El Hassane Ihalane ◽  
Hassan Kirou ◽  
Khalid Bouabid ◽  
Abdeslam Elfanaoui ◽  
...  
Keyword(s):  
Linear Sweep Voltammetry ◽  
Linear Sweep

scholarly journals Sensitive voltammetric detection of yeast RNA based on its interaction with Victoria Blue B

2009 ◽  
Vol 74 (12) ◽  
pp. 1467-1476 ◽  
Author(s):  
Weili Zhang ◽  
Xueliang Niu ◽  
Na Zhao ◽  
Wei Sun
Keyword(s):  
Interaction Mechanism ◽  
Linear Sweep Voltammetry ◽  
Reduction Peak ◽  
Linear Sweep ◽  
Buffer Solution ◽  
Peak Current ◽  
Voltammetric Detection ◽  
Voltammetric Studies ◽  
Rna Complex

Voltammetric studies of the interaction of yeast RNA (y-RNA) with Victoria Blue B (VBB) are described in this paper. Furthermore, a linear sweep voltammetric method for the detection of y-RNA was established. The reaction conditions, such as acidity and amount of buffer solution, the concentration of VBB, the reaction time and temperature, etc., were carefully investigated by second order derivative linear sweep voltammetry. Under the optimal conditions, the reduction peak current of VBB at -0.75V decreased greatly after the addition of y-RNA to the solution without any shift of the reduction peak potential. Based on the decrease of the peak current, a new quantitative method for the determination of y-RNA was developed. The effects of co-existing substances on the determination were carefully investigated and three synthetic samples were determined with satisfactory results. The stoichiometry of the VBB-y-RNA complex was calculated by linear sweep voltammetry and the interaction mechanism is discussed.

Characterization of Ta-Ti Thin Films by using a Scanning Droplet Cell in Combination with AC Linear Sweep Voltammetry

2014 ◽  
Vol 1 (5) ◽  
pp. 903-908 ◽  
Author(s):  
Mu Fan ◽  
Kirill Sliozberg ◽  
Fabio La Mantia ◽  
Naoko Miyashita ◽  
Marcel Hagymási ◽  
...  
Keyword(s):  
Thin Films ◽  
Linear Sweep Voltammetry ◽  
Linear Sweep ◽  
Scanning Droplet Cell

Characterization of electrodeposited Cd–Co alloy coatings by anodic linear sweep voltammetry

2009 ◽  
Vol 54 (28) ◽  
pp. 7565-7572 ◽  
Author(s):  
B.M. Jović ◽  
Ts. Dobrovolska ◽  
U. Lačnjevac ◽  
I. Krastev ◽  
V.D. Jović
Keyword(s):  
Linear Sweep Voltammetry ◽  
Linear Sweep

Characterization of ZnO thin films grown by linear sweep voltammetry

2014 ◽  
Author(s):  
Lahoucine Atourki ◽  
El Hassane Ihalane ◽  
Hassan Kirou ◽  
Ahmed Ihlal ◽  
Khalid Bouabid ◽  
...  
Keyword(s):  
Thin Films ◽  
Linear Sweep Voltammetry ◽  
Zno Thin Films ◽  
Linear Sweep

scholarly journals Voltammetric investigation on interaction of Hyaluronic Acid with crystal violet and its analytical application

2013 ◽  
Vol 9 (2) ◽  
pp. 1900-1910
Author(s):  
WeiLi Zhang ◽  
XueLiang Niu ◽  
Ping Ping Zhang ◽  
Wei Sun
Keyword(s):  
Hyaluronic Acid ◽  
Crystal Violet ◽  
Linear Sweep Voltammetry ◽  
Electrochemical Determination ◽  
Linear Sweep ◽  
Buffer Solution ◽  
Reaction Conditions ◽  
Peak Current ◽  
The Difference ◽  
Optimized Conditions

In this paper, the interaction of hyaluronic acid (HA) with crystal violet (CV) was investigated carefully by linear sweep voltammetry on the dropping mercury working electrode (DME). In pH 5.0 Britton-Robinson (B-R) buffer solution, CV has a sensitive, well-defined second order derivative linear sweep voltammetric reductive wave at –0.85 V (vs. SCE). After adding a certain amount of HA into CV solution, the reductive peak current decreased without any shift of reductive peak potential. Based on the difference in the reductive peak current, a new voltammetric method for the detection of HA was established. The reaction conditions and the electrochemical determination were studied and optimized. Under the optimized conditions, the decrease of peak current showed a good linear relationship with the HA concentration in the range from 10.0 to 40.0 mg/L. The linear regression equation was got as ∆ip″(nA)= 84.07 C–527.86  (mg/L) (n=8, γ=0.997) and the detection limit was calculated as 2.65 mg/L (3σ). This new established method was further used to HA determination in the synthetic samples with satisfactory results and good recovery. The stoichiometry of CV-HA complex was calculated and the binding mechanism was also discussed by the electrochemical data.

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