A Novel Strategy of Electrochemically Treated ZrOCl<sub>2</sub> Doped Carbon Paste Electrode for Sensitive Determination of Daidzein

Liu, Ying; Li, Yinfeng; Gao, Jian; Wang, Lu; Zou, Lina; Ye, Baoxian

doi:10.1002/elan.201400751

Cited by 13 publications

(2 citation statements)

References 25 publications

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“…In addition, the synthesis of molecularly imprinted polymers is inexpensive, and the storage life of these polymers can be several months or even years without loss of their recognition capacity. In recent years, application to separation and enrichment in environmental [9,10], drugs [11,12] and pesticide [13,14] has attracted increasing attention.…”

Section: Introductionmentioning

confidence: 99%

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

et al. 2016

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A sensitive and selective method for the determination of procaine hydrochloride using molecularly imprinted polymers (MIPs) modified glassy carbon electrodes was developed. The MIPs were prepared by solution polymerization using procaine hydrochloride as the template molecules and acrylic acid (AA) and vinyltriethoxysilane (WD‐20) as the functional monomer and cross‐linking agent, respectively. A film was formed on the surface of the glassy carbon electrodes and later cross‐linked with ethanol as solvent. Next, these electrodes were employed to detect procaine hydrochloride by differential pulse voltammetry (DPV). Under the optimized conditions, good linearity (correlation coefficient of 0.9986) was observed between the oxidation peak current and the concentration of procaine hydrochloride in the range of 4.0×10−8 to 2.4×10−5 M in a pH 7.0 0.04 M phosphate buffer solution, and the detection limit (S/N=3) was 1.02×10−8 M. In addition, the stability and reproducibility of the sensors were satisfactory. Moreover, the concentration of procaine hydrochloride in human blood serum samples was detected, and its recoveries ranged from 97.5 % to 106.4 % with RSD less than 2.15 %. These results suggest that the prepared molecularly imprinted electrochemical sensors can be used for the determination of procaine in clinical studies.

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Section: Introductionmentioning

confidence: 99%

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

et al. 2016

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“…A quick review of recent literatures indicated that the carbon paste electrodes modified with metallic oxides have received also considerable attention. With numerous types of metallic oxides modified CPE were reported, such as TiO 2 , SnO 2 , CdO , MnO 2 , Y 2 O 3 , ZnO , ZrO 2 , Fe 2 O 3 and ThO 2 . To our knowledge, there is no report on the construction of carbon paste electrode modified directly with Ta 2 O 5 particles so far.…”

Section: Introductionmentioning

confidence: 99%

A Newly Competitive Electrochemical Sensor for Sensitive Determination of Chrysin Based on Electrochemically Activated Ta₂O₅ Particles Modified Carbon Paste Electrode

Xie

Sheng

et al. 2016

Electroanalysis

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1Introduction Chrysin( 5,7-dihydroxy flavone,S cheme 1),a ni mportant member of the flavonoids family,i sw idely distributed in propolis,P assiflorac aerulea La nd Chinesem edicinal herb Oroxylum indicum. Chrysin possesses many pharmacological activities,s uch as antioxidant, antivirus,a nti-diabetes and anti-anxiolytic effect [ 1].F urthermore,C hrysin had demonstrated an ability to inhibit proliferation and induce apoptosis in leukemia cells and displayed more potent immuno suppressive activity than other flavonoids [2].Ac ertaina mounto fc hrysin can help in reducing the chemotherapeutic toxicity of drug CDDP (cis-diammine dichloroplatinum(II)) [3].I nv iew of these critical pharmacological activities,d eveloping ah ighly sensitive and selective method for the determination of chrysinw ould be valuable and meaningful.Up to date,s ome analyticalm ethods are available for the determination of chrysin, such as visible and near infrared spectroscopy( Vis-NIR) [4],d iffuse reflectance spectroscopy[ 5],h igh performancel iquid chromatography (HPLC)[ 6],d irect chemiluminescence (CL) [ 7]. Though these analyticalt echniquesc an achieve high sensitivity and good precision, they have to be operatedb y highly trained technicians,a nd require time-consuming sample pretreatment, makingt hem unsuitable for on-site rapid monitoring. Electrochemical method, by contrast, is less expensive than above methods and has additional advantages of fast response speed,s imple operation, timesaving,h igh sensitivity, excellents electivitya nd real-time detection in situ condition. What is more,t he electrochemical techniques also are helpful for identifying the redox properties of active materialsa nd providing important informationa bout pharmacologicala ctions.N evertheless,t ot he best of our knowledge,afewp apers are reported concerning the determination of chrysin by electrochemical methods [8][9][10][11][12].H owever,o ne or mored isadvantages were presented in each paper,e ither low detection sensitivity or narrow linear range.T herefore,i ti s still significant and meritorioust od evelop ah ighly sensitive,g reen, environmentally friendly electrochemical methodf or quantitative determinationo fc hrysin.Carbon paste electrodes (CPE) are widely used in electrochemical research since its appearance in 1958b y Ralph N. Adams [13].M any unique advantagesh ave led to its popularity:e ase of modification [14],h igh adsorptivity [15],g ood conductivity,w ide potential window [14], low residual current and the new reproducibles urface [16].E ase of modification by aqueous and nonaqueous matrices is one of the most valuablef eatureso fC PE [14].Aquickr eview of recent literatures indicated that the carbon pastee lectrodes modified with metallic oxides have receiveda lso considerable attention. With numerous types of metallic oxides modified CPE were reported, Abstract:An ovel electrochemically activatedd oped Ta 2 O 5 particles modified carbon paste electrode (EA-Ta 2 O 5 -CPE) was prepared and applied for selective and sensitive determi...

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A Nanocomposite Containing Carbon Nano‐onions and Polyaniline Nanotubes as a Novel Electrode Material for Electrochemical Sensing of Daidzein

et al. 2021

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Glassy carbon electrode (GCE) were modified with nanocomposites containing conductive polyaniline nanotubes (PANInt) and carbon nano‐onions (CNOs). Herein we report a simple and sensitive way for daidzein (DA) determination at concentrations between 1 and 10 μM by linear sweep voltammetry using GCE/PANInt/CNOs system. The DA electrochemical behavior was examined in two buffer environments (pH 7.5 and 4.5) using electrodes modified with the oxidized CNOs or their derivatives containing carboxyl and benzylamino functional groups. The direct electrooxidation of DA was observed at +0.65 V and +0.8 V at pH 7.5 and at +0.7 V and +1.1 V vs. Ag/AgCl at pH 4.5.

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A Novel Strategy of Electrochemically Treated ZrOCl₂ Doped Carbon Paste Electrode for Sensitive Determination of Daidzein

Cited by 13 publications

References 25 publications

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

A Newly Competitive Electrochemical Sensor for Sensitive Determination of Chrysin Based on Electrochemically Activated Ta₂O₅ Particles Modified Carbon Paste Electrode

A Nanocomposite Containing Carbon Nano‐onions and Polyaniline Nanotubes as a Novel Electrode Material for Electrochemical Sensing of Daidzein

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A Novel Strategy of Electrochemically Treated ZrOCl2 Doped Carbon Paste Electrode for Sensitive Determination of Daidzein

Cited by 13 publications

References 25 publications

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

A Sensitive Electrochemical Sensor Based on Solution Polymerized Molecularly Imprinted Polymers for Procaine Detection

A Newly Competitive Electrochemical Sensor for Sensitive Determination of Chrysin Based on Electrochemically Activated Ta2O5 Particles Modified Carbon Paste Electrode

A Nanocomposite Containing Carbon Nano‐onions and Polyaniline Nanotubes as a Novel Electrode Material for Electrochemical Sensing of Daidzein

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A Novel Strategy of Electrochemically Treated ZrOCl₂ Doped Carbon Paste Electrode for Sensitive Determination of Daidzein

A Newly Competitive Electrochemical Sensor for Sensitive Determination of Chrysin Based on Electrochemically Activated Ta₂O₅ Particles Modified Carbon Paste Electrode