Nanostructure-based electrochemical sensor for the voltammetric determination of benserazide, uric acid, and folic acid

Baghbamidi, Sakineh Esfandiari; Beitollahi, Hadi; Mohammadi, Sayed Zia; Tajik, Somayeh; Soltani-Nejad, Somayeh; Soltaninejad, Vahhab

doi:10.1016/s1872-2067(12)60655-x

Cited by 48 publications

(10 citation statements)

References 45 publications

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“…In recent years, electrochemical methods and particularly voltammetry, have attracted significant attention due to their benefits like sensitivity, simplicity, low cost, accuracy and selective specification of electroactive species [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. In addition, the usage of electrochemical approaches towards detection of FA is generally promising because FA is the electrochemically active compound [29,30].…”

Section: A D V a N C E D O N L I N E A R T I C L Ementioning

confidence: 99%

A novel vitamin B9 sensor based on modified screen-printed electrode

Sarhadi

Zare

2020

J. Electrochem. Sci. Eng.

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In the field of determination of vitamin B9 (folic acid, FA), we have described the development of a sensitive electrochemical sensor through promoting the screen-printed electrode (SPE) and taking the advantage of zinc ferrite magnetic nanoparticles (ZnFe2O4MNPs). Cyclic voltammetry (CV) experiments demonstrated the powerful activity of ZnFe2O4MNPs/SPE for electrooxidation of FA by showing the prominent oxidation peak at 600 mV vs. Ag/AgCl. By differential pulse voltammetry (DPV) measurements, a linear relation between current response and concentration of vitamin B9 was determined in the range of 1.0–100.0 µM, and detection limit is found to be 0.3 µM (S/N=3). Except high sensitivity, the developed sensor demonstrated high stability, reproducibility and repeatability, and was also successfully applied to specify FA in real samples of vitamin B9 tablets and human urine.

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Section: A D V a N C E D O N L I N E A R T I C L Ementioning

confidence: 99%

A novel vitamin B9 sensor based on modified screen-printed electrode

Sarhadi

Zare

2020

J. Electrochem. Sci. Eng.

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“…To have a selective and sensitive electrochemical signal for dopamine, the electrode modification is required. The application of modified electrodes in electrochemical method for the determination of drugs has been previously reported in the literature [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Among various potential electrodes in the electrochemical determinations, glassy carbon electrodes (GCEs) have demonstrated the stability and resistance.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Determination of Dopamine Using Glassy Carbon Electrode Modified with ZnO/Al2O3 Nanocomposite

Ganjali¹

2018

International Journal of Electrochemical Science

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In this work, a new modification strategy was reported to modify a glassy carbon electrode (GCE) based on ZnO/Al 2 O 3 nanocomposite. This modified electrode was designed in order to be used as a sensitive and selective sensor towards detection of trace amount of dopamine (DA). The effective parameters on the optimal performances of the electrode such as pH of the test solution and the applied scan rate during the electrochemical process were also studied. This sensor responded linearly towards detection of dopamine within a wide range of 5.0×10 −6 -7.0×10 −4 M with a low detection limit of 2.0×10 − 6 M (pH=7.0), under the optimum conditions. Moreover, the electrode functioned in the determination of dopamine in real samples was satisfactory.

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“…In addition, the electrochemical methods are portable, which facilitates the monitoring of molecules and the acquisition of information in situ and online. [16][17][18][19][20][21][22] However, the main limitation related to the electrochemical determination of HZ with conventional electrodes is the exigence of a high overpotential to be applied in order to promote the electrochemical oxidation of HZ. A common strategy to detect HZ using electrochemical methods is the employment of chemically modified electrodes, which can improve the sensitivity and selectivity of the sensing device, improving the electrocatalytic activities for the electrochemical oxidation of HZ.…”

Section: Introductionmentioning

confidence: 99%

Amperometric Electrochemical Platform for Hydrazine Determination Exploiting Reduced Graphene Oxide, Co(Salophen) and DNA: Application in Pharmaceutical Formulations Samples

Freitas¹,

Lima²,

Silva³

et al. 2018

J. Braz. Chem. Soc.

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The present work presents the development of a sensitive and selective amperometric sensor for the determination of hydrazine (HZ) in pharmaceutical formulations using a glassy carbon electrode (GCE) modified with a composite based on Co(Salophen), reduced graphene oxide (rGO) and deoxyribonucleic acid (DNA). The rGO/Co(Salophen)/DNA composite was characterized by using Fourier-transform infrared spectroscopy (FTIR), cyclic voltammetry, and amperometry. The proposed platform presented a well-defined voltammetric profile with a redox couple around 0.32 V vs. Ag/AgCl which showed excellent catalytic activity towards HZ oxidation. The peak current of HZ electrochemical oxidation on the proposed electrochemical platform have changed linearly with the HZ concentration in the range from 2 to 364 µmol L -1 . The proposed platform presented sensitivity, limit of detection, and limit of quantification of 0.056 µA L µmol , and 1.64 µmol L -1 to HZ, respectively. The relative standard deviation for eight determinations using a solution of 50 µmol L -1 HZ was 0.85%. The proposed sensor was successfully applied for the determination of HZ in pharmaceutical formulations, and the recovery tests showed a good accuracy with recovery percentage between 99 and 101%.Keywords: sensor, Co(Salophen), reduced graphene oxide, DNA, hydrazine, pharmaceutical formulations IntroductionNowadays, the interest on hydrazine (HZ) has been increasing due to its high reactivity, which has been exploited in the production of a number of materials including insecticides and pesticides, as well as it has been employed in the preparation of some pharmaceutical formulations such as nifuroxazide, carbidopa, hydralazine, dihydralazine, isoniazid and iproniazide. [1][2][3][4] On the other hand, the HZ is an extremely toxic compound as stated by some regulatory agencies such as the United States Environmental Protection Agency and the European Medicines Agency. 5,6 According to regulatory agencies, the recommended levels of HZ in medicinal products such as isoniazid based drugs is of 125 ppm 5,6 since the exposition to high levels of hydrazine can be harmful to human life because of its potential carcinogenic and mutagenic effects. [5][6][7] In this sense, the monitoring of HZ in pharmaceutical formulations is of high importance to ensure the quality of the medicines released for consumption by the population.The high importance of HZ in industrial, environmental and pharmaceutical fields have motivated the development of several analytical methodologies for HZ determination, such as spectrophotometry, 8 injection analysis based systems, 9 chromatographic methods, 10,11 and electrochemical methods. [12][13][14][15] The electrochemical methods present some interesting properties in comparison to the previously Freitas et al. 2097 Vol. 29, No. 10, 2018 presented non-electrochemical methods, since they do not require long preparing steps, analytical grade reagents or skilled operators for the analysis. In this sense, the electrochemical methods show excell...

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Nanostructure-based electrochemical sensor for the voltammetric determination of benserazide, uric acid, and folic acid

Cited by 48 publications

References 45 publications

A novel vitamin B9 sensor based on modified screen-printed electrode

A novel vitamin B9 sensor based on modified screen-printed electrode

Voltammetric Determination of Dopamine Using Glassy Carbon Electrode Modified with ZnO/Al2O3 Nanocomposite

Amperometric Electrochemical Platform for Hydrazine Determination Exploiting Reduced Graphene Oxide, Co(Salophen) and DNA: Application in Pharmaceutical Formulations Samples

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