A Novel Polyaniline–Poly(3-Methylthiophene)–Poly(3,3′-Diaminobenzidine) Electrode for the Determination of Dopamine in Human Serum

Kavanoz, Muammer; Ülker, Emine; Bük, Ufuk

doi:10.1080/00032719.2014.930866

Cited by 6 publications

(11 citation statements)

References 56 publications

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“…Furthermore, because of the limited electroactivity or conductivity of PDAB, the oxidation peak current of HQ recorded on an uncoated Pt electrode was higher than on PDAB coated electrode. 25 However, using PDAB in preparation of PANI -P3MT -PDAB modified electrode, the number of functional groups increased (the PDAB film contains many -NH and -NH 2 functional groups) and this enrichment provided greater hold of HQ by hydrogen bonding on this electrode surface. Thus, the current values obtained using PANI, P3MT and PDAB coated Pt electrodes containing HQ ( Figure 3A-C(a)) were higher than on coated electrode surfaces without HQ ( Figure 3A,C(b)).…”

Section: Cyclic Voltammetric Behavior Of Hydroquinone Over Pani -P3mtmentioning

confidence: 99%

“…Therefore, synthesized PANI -P3MT-PDAB film has better electroactivitiy and more active functional groups. 25 …”

Section: Preparation Of Pani -P3mt-pdab Filmmentioning

confidence: 99%

“…Repeatability of current recorded from amperometric I-t curves (0.55 V) for HQ determination over PANI-P3MT-PDAB film deposited at optimum conditions on Pt disc electrode 25 was tested by using at least three films for each measurement in SBS (pH 2.0) vs. SCE. For each concentration of HQ (1.0, 5.0, 10.0 and 20.0 mM), the obtained amperometric I-t curves, currents, standard deviations (s) of currents, percent relative standard deviation (% RSD) and confidence interval are shown in Table 2.…”

Section: Repeatability Of the Pani-p3mt-pdab Modified Electrode Fomentioning

confidence: 99%

“…pH behavior of the PANI -P3MT -PDAB film was investigated in SBS (pH 1.0 -6.5) in our previous study ( Figure 2) 25 and the optimum pH value was determined as pH 2.0.…”

Section: Ph Behavior Of Pani -P3mt-pdab Filmmentioning

confidence: 99%

“…3s/m and 10s/m (s: standard deviation, m: slope) equations were used to calculate the LOD and LOQ values. 4,25,27 The parameter of "s" was calculated from the current values of the lowest concentration that generate a measurable current in three replicate measurements. As it is clear from the table, lower LOD value and wider linear range were obtained when the PANI-P3MT-PDAB coated electrode was used.…”

Section: Amperometric Determination Of Hydroquinonementioning

confidence: 99%

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Electrode Prepared with Combination of Different Conductive Polymers for Hydroquinone Determination in River Water

Ülker

Kavanoz

2016

ACSi

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Modified electrode based on combination of different conductive polymers (polyaniline -poly(3-methylthiophene) -poly(3,3'-diaminobenzidine) (PANI -P3MT -PDAB)) was previously synthesized in dichloromethane containing HClO 4 and tetrabutylammoniumperchlorate (TBAP) as supporting electrolyte. Herein, the determination of hydroquinone (HQ) with amperometric I-t method over this modified and its homopolymers coated electrode was successfully carried out in river water as a real sample and in solution consisting of NaHSO 4 /Na 2 SO 4 (pH 2.0). For this method, potentials between 0.45 V and 0.65 V were applied and the best analytical response was obtained at 0.55 V using this modified electrode when compared to its homopolymers. The limit of detection (LOD), limit of quantification (LOQ) , the linear dynamic range and regression coefficient (R 2 ) were found as 1.31 × 10 -4 mM, 4.37 × 10 -4 mM, 4.37 × 10 -4 -95.0 mM and 0.998, respectively. These results were compared to homopolymers coated and uncoated Pt electrodes. For checking on the accuracy of the developed method and the matrices interference, determination of HQ was performed in artificially contaminated river water samples with HQ concentration of 5.0 mM and 10.0 mM using this modified electrode and recovery values were calculated as 100.6% and 100.1%, respectively.

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Section: Cyclic Voltammetric Behavior Of Hydroquinone Over Pani -P3mtmentioning

confidence: 99%

“…Therefore, synthesized PANI -P3MT-PDAB film has better electroactivitiy and more active functional groups. 25 …”

Section: Preparation Of Pani -P3mt-pdab Filmmentioning

confidence: 99%

Section: Repeatability Of the Pani-p3mt-pdab Modified Electrode Fomentioning

confidence: 99%

“…pH behavior of the PANI -P3MT -PDAB film was investigated in SBS (pH 1.0 -6.5) in our previous study ( Figure 2) 25 and the optimum pH value was determined as pH 2.0.…”

Section: Ph Behavior Of Pani -P3mt-pdab Filmmentioning

confidence: 99%

Section: Amperometric Determination Of Hydroquinonementioning

confidence: 99%

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Electrode Prepared with Combination of Different Conductive Polymers for Hydroquinone Determination in River Water

Ülker

Kavanoz

2016

ACSi

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Voltammetric sensor based on poly(3-methylthiophene) synthesized in dichloromethane for tyramine determination in moldy cheese

Küçük

Torul

2018

Synthetic Metals

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Determination of epinephrine in human serum using a Pt electrode modified by polyaniline–poly(3-methylthiophene)–poly(3,3′-diaminobenzidine)

Ülker

Kavanoz

2015

Can. J. Chem.

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Polyaniline -Poly(3-methyl thiophene) -Poly(3,3'-diaminobenzidine) modified Pt electrode was used for amperometric determination of epinephrine in solution consisting of NaHSO 4 /Na 2 SO 4 (pH 2.0). For amperometric studies, potentials between 0.40 V and 0.50 V were applied and the best response was obtained at 0.45 V. The limit of detection, limit of quantification and the linear dynamic range were found as 1.23x10 -4 mmol L -1 , 4.10x10 -4 mmol L -1 and 4.10x10 -4 -100.0 mmol L -1 , respectively. These results were compared homopolymers coated and uncoated Pt electrodes. In order to check the accuracy of the developed method and the matrices interference, determination of epinephrine was performed in human serum samples using this modified electrode. The epinephrine concentrations were adjusted to 1.0 mmol L -1 and 5.0 mmol L -1 and recovery values were calculated as % 100.4 and % 96.8, respectively. It is significant that the determination of epinephrine was carried out lower potential (0.45 V) than oxidation potential of epinephrine (0.65 V) without matrix effect.

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A Novel Polyaniline–Poly(3-Methylthiophene)–Poly(3,3′-Diaminobenzidine) Electrode for the Determination of Dopamine in Human Serum

Cited by 6 publications

References 56 publications

Electrode Prepared with Combination of Different Conductive Polymers for Hydroquinone Determination in River Water

Electrode Prepared with Combination of Different Conductive Polymers for Hydroquinone Determination in River Water

Voltammetric sensor based on poly(3-methylthiophene) synthesized in dichloromethane for tyramine determination in moldy cheese

Determination of epinephrine in human serum using a Pt electrode modified by polyaniline–poly(3-methylthiophene)–poly(3,3′-diaminobenzidine)

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