Quantitative determination of phenol in natural decayed leaves using procaine modified carbon paste electrode surface by cyclic voltammetry

Mülazımoğlu, İbrahim Ender; Yılmaz, Ecir

doi:10.1016/j.desal.2010.02.014

Cited by 18 publications

(12 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Using a stock solution of 1,000 ppm Cu(II) in BR buffer solution at pH 5.00 was used to prepare a series of standard solutions of Cu(II) varies from 1.0 × 10 −9 to 1.0 × 10 −3 M. BR buffer solution was prepared by using H 3 PO 4 , CH 3 COOH and H 3 BO 3 according to the literature [31,34]. Fine pH adjustments were carried out using dropwise addition of 0.2 or 1.0 M NaOH.…”

Section: Chemicals and Solutionsmentioning

confidence: 99%

See 1 more Smart Citation

A novel highly sensitive carbon-based HMPD/GC sensor electrode: copper ions analysis in flour and water samples

Durmuş¹,

Yılmaz²,

Mülazımoğlu³

et al. 2018

Desalination and Water Treatment

View full text Add to dashboard Cite

a b s t r a c tIn this research, (Z)-2-(2-(hydroxyimino)-2-(3-methyl-3-phenylcyclobutyl)ethyl)-3a,7a-dihydro-1H-isoindole-1,3(2H)-dione, HMPD molecule has been grafted to the glassy carbon (GC) electrode surface. The HMPD-modified GC electrode has been originally developed and it used for the quantitative determination of Cu(II) in flour and water samples. The modification steps have been performed using cyclic voltammetry (CV). CV, electrochemical impedance spectroscopy and scanning electron microscopy have been employed for the characterization processes. Cu(II) standard solutions changing from 1.0 × 10 -9 to 1.0 × 10 -3 M have been prepared and the corresponding peak currents have been measured. From the obtained data calibration equation has been calculated I p = -1.555C cu + 15.86 which is having a 0.9974 correlation coefficient. 10.0 mL of flour and water samples have been mixed with 10.0 mL Britton-Robinson (BR) buffer solution (pH = 5.00) and HMPD/GC sensor electrode has been kept in these mixed solutions for 90 min. Differential pulse voltammetric (DPV) technique has been applied for the measurement of the peak currents. After the application of the developed sensor electrode for Cu(II) detection in flour and water samples, Cu(II) ion concentrations have been calculated from the obtained peak current values, 1.97 and 2.46 µA. The Cu(II) ion concentrations have been calculated as 1.17 × 10 -9 and 2.41 × 10 -9 M, respectively.

show abstract

Section: Chemicals and Solutionsmentioning

confidence: 99%

“…Following the initial polishing, the GC electrodes were resurfaced with 0.05 mm alumina slurry. The GC electrodes were sonicated both in water and in 1:1 (v/v) isopropyl alcohol (IPA) and CH 3 CN (IPA + CH 3 CN) mixture for 10 min in the following order [33,34].…”

Section: Preparation and Modification Processesmentioning

confidence: 99%

A novel highly sensitive carbon-based HMPD/GC sensor electrode: copper ions analysis in flour and water samples

Durmuş¹,

Yılmaz²,

Mülazımoğlu³

et al. 2018

Desalination and Water Treatment

View full text Add to dashboard Cite

show abstract

“…Besides their sensitivity, metal can lead to electrochemical characterization of many biometalomolecules and metalomolecules [17][18][19]. These type of compounds having metal atoms in their structure can be easily characterized and determined by using electrochemical methods especially voltammetry techniques [20,21]. In these techniques, applied reduction and oxidation potential must be determined depending on the metal atoms on the Schiff base structure especially when using GC electrode.…”

Section: Introductionmentioning

confidence: 99%

A Novel MPTHP Modified Glassy Carbon Sensor Electrode: Investigation of Electrochemical Behaviors and Determination of Cu (II) Ions in Drinking Water Sample

Adir

Yılmaz

Mülazımoğlu

et al. 2019

Asian Review of Environmental and Earth Sciences

Self Cite

View full text Add to dashboard Cite

In the present work report, 2-methyl-6-((2-(4-(3-methyl-3-phenylcyclobutyl)thiazol-2yl)hydrazono)methyl) phenol (MPTHP) has been newly synthesized and characterized. The new molecule has been used to modify the glassy carbon (GC) electrode surface through the alcohol oxidation method due to-OH group on its structure. MPTHP modified GC (MPTHP/GC) electrode has been used as a chemical sensor electrode for the quantitative determination of Cu (II) ions. Following the modification process, the surface characterization process of the modified electrode has been carried out by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS) and scanning electron microscopy (SEM). In this work, Cu (II) ions have been quantitatively determined by using differential pulse voltammetry (DPV) technique. A quite low detection limit (based on 3sbl/m) for Cu (II) using developed sensor electrode was found to be as 1.0x10-9 M. For the calibration curve, solutions of Cu (II) ions changing from 1.0x10-9 M to 1.0x10-3 M have been prepared using Britton-Robinson (BR) buffer solution at pH 5. The developed sensor electrode has been applied to tap water sample for the quantitation of Cu (II) ions and the amount of Cu (II) was determined as 4.07 x 10-9 M in this sample.

show abstract

“…As the surface of an electrode can be prepared in an appropriate medium and under the optimum preparation conditions through electrochemical oxidation or reduction [ 29 – 31 ], modified electrodes can be physically prepared as in carbon paste electrodes [ 32 ]. Although electrode modification is done widely in the aqueous media [ 33 – 36 ], recent studies in non-aqueous media [ 37 , 38 ] are also available.…”

Section: Introductionmentioning

confidence: 99%

“…Because the determinations in studies are usually made in the aqueous media, which is thought to be more stable, the modification processes in aqueous media are preferred. However, using the sensor electrodes obtained after modification, the determinations of some species in natural samples, phenolic compounds [ 32 , 37 , 39 ], metals [ 40 – 42 ] and etc. can also be made in the aqueous media.…”

Section: Introductionmentioning

confidence: 99%

Dithiooxamide Modified Glassy Carbon Electrode for the Studies of Non-Aqueous Media: Electrochemical Behaviors of Quercetin on the Electrode Surface

Mülazımoğlu

Yılmaz

Mülazımoğlu

2012

Sensors

Self Cite

View full text Add to dashboard Cite

Electrochemical oxidation of quercetin, as an important biological molecule, has been studied in non-aqueous media using cyclic voltammetry, electrochemical impedance spectroscopy and scanning electron microscopy. To investigate the electrochemical properties of quercetin, an important flavonoid derivative, on a different surface, a new glassy carbon electrode has been developed using dithiooxamide as modifier in non-aqueous media. The surface modification of glassy carbon electrode has been performed within the 0.0 mV and +800 mV potential range with 20 cycles using 1 mM dithioxamide solution in acetonitrile. However, the modification of quercetin to both bare glassy carbon and dithiooxamide modified glassy carbon electrode surface was carried out in a wide +300 mV and +2,800 mV potential range with 10 cycles. Following the modification process, cyclic voltammetry has been used for the surface characterization in aqueous and non-aqueous media whereas electrochemical impedance spectroscopy has been used in aqueous media. Scanning electron microscopy has also been used to support the surface analysis. The obtained data from the characterization and modification studies of dithioxamide modified and quercetin grafted glassy carbon electrode showed that the developed electrode can be used for the quantitative determination of quercetin and antioxidant capacity determination as a chemical sensor electrode.

show abstract

Quantitative determination of phenol in natural decayed leaves using procaine modified carbon paste electrode surface by cyclic voltammetry

Cited by 18 publications

References 25 publications

A novel highly sensitive carbon-based HMPD/GC sensor electrode: copper ions analysis in flour and water samples

A novel highly sensitive carbon-based HMPD/GC sensor electrode: copper ions analysis in flour and water samples

A Novel MPTHP Modified Glassy Carbon Sensor Electrode: Investigation of Electrochemical Behaviors and Determination of Cu (II) Ions in Drinking Water Sample

Dithiooxamide Modified Glassy Carbon Electrode for the Studies of Non-Aqueous Media: Electrochemical Behaviors of Quercetin on the Electrode Surface

Contact Info

Product

Resources

About