Centri-voltammetric detection of epinephrine

Altuntaş, Derya Bal; Ören, Tuğba; Anık, Ülkü

doi:10.1039/c6ay02142e

Cited by 9 publications

(5 citation statements)

References 27 publications

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“…As can be seen from the Figure, an increase in the peak currents were obtained up to 1500 rpm where a decrease in the current value was observed at centrifugation speeds higher than that. As explained before, this might be attributed to the disintegration of FA included 4NC−NO 2 layer onto the electrode surface .…”

Section: Resultsmentioning

confidence: 99%

“…By applying centrifuga-tion, the analyte is deposited onto the electrode surface and without engaging any separation techniques, the analyte's redox behaviour is monitored voltammetrically [28]. Up to now, metallic substances [29,30] together with biologically important analytes [31,32,33,34,35] were detected by this method. Also, the electrode was modified with suitable enzymes [36,37] or cell lines [38] and various biocentri-voltammetric methods were developed.…”

Section: Introductionmentioning

confidence: 99%

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Centri‐Voltammetric Folic Acid Detection

2019

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The need for practical detection of folic acid (FA) has been increased day by day. For this reason in this work, a two steps electroanalytical technique, centri‐voltammetry was utilized for FA detection for the first time. In order to get rid of the slow electrode kinetics of FA oxidation, the working electrode was modified with graphene‐Pt hibrid nanomaterial. Also for increasing the sensitivity, 1‐Chloro‐2‐[2‐(2‐methoxyethoxy) ethoxy]ethane (TEG−Cl) and 1,2‐di{2‐[2‐(2‐methoxyethoxy)ethoxy] ethoxy}‐4‐nitrobenzene (4NC−NO2) was used as a carrier material. After the characterization of graphene‐Pt hybrid nanomaterial, experimental parameters like, 4NC−NO2 amount, adsorption time, centri‐voltammetric parameters like centrifuge time and speed were optimized. After that, analytical characteristics such as linear range, relative standard deviation (R.S.D), limit of detection (LOD) and limit of quantification (LOQ) values were found. In this manner, linear range was obtained for FA between 1.0 μM–1000 μM with the equations of y=0.0108x+1.0459 (R2=0.9977). R.S.D value was calculated for 0.83 mM FA (n=3) as 1.86 % while LOD and LOQ values were found as 1.00 μM and 3.34 μM respectively. After the examination of interference effect of substances like ascorbic acid and uric acid, established centri‐voltammetric technique was enforced for FA detection in pharmateutical tablets. As a result, the recovery value was calculated as 96.4 %.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Centri‐Voltammetric Folic Acid Detection

2019

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“…The advantages of nanomaterials in the electrochemical systems have been obvious and demonstrated with different groups for some time [43][44][45][46]. It has been known that the addition of nanomaterials into these systems increases the conductivity hence fastens the electrochemical transfer that results with the increment in sensitivity [43].…”

Section: Electron Microscopic Characterization Of Mwcntà Ptà Au and I...mentioning

confidence: 99%

Development of Apple Tissue Based Biocathode and MWCNT−Pt−Au Nanomaterial Based Bioanode Biofuel Cell

et al. 2020

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A biofuel cell (BFC) was fabricated by combining multiwalled carbon nanotube ‐platinum‐gold (MWCNT−Pt−Au) hybrid nanomaterial, glucose oxidase (GOx) and benzoquinone included carbon felt electrode (CFE) bioanode with apple tissue included CFE biocathode. The working parameters of bioanode were optimized both experimentally and chemometrically. For the biocathode, apple, banana and pear tissues were tried and best power output was obtained with apple tissue. By combining MWCNT−Pt−Au/GOx/CFE bioanode with apple tissue based biocathode, single cell, double cell with membrane and with salt‐bridge BFCs were formed. The best power output with highest current density were obtained with single cell BFC.

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“…In order to obtain more efficient deposition of the analyte, sometimes a suitable carrier has also been used [48,49] . As a result more sensitive analysis has been done [50–53] . In the present work, centri‐voltammetry was again attained for GSH detection.…”

Section: Introductionmentioning

confidence: 99%

“…[48,49] As a result more sensitive analysis has been done. [50][51][52][53] In the present work, centri-voltammetry was again attained for GSH detection. In our previous centri-voltammetric GSH detection, silica gel was acted as a carrier precipitate in the presence of gold nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

Centri‐Voltammetric GSH Detection with PDI‐C₄SH as a Carrier Material

et al. 2021

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In this study, we developed a centri‐voltammetric electrochemical sensor for glutathione (GSH) detection. For this purpose, N,N′‐2‐octyloxy‐1‐methyl‐2‐oxoethyl)‐(‐2,4‐thiolbutyloxy)‐1‐methyl‐2‐oxoethyl)‐3,4 : 9,10‐perylenetetracarboxyldiimide (PDI‐C4SH) molecule was used as a carrier molecule for the first time. This molecule, interacted with the thiol ends of GSH and formed a disulfide bridge. By this way, PDI‐C4SH improved the accumulation of GSH onto the electrode surface and increased the sensitivity of the detection protocol. All the electrochemical measurements were carried out with differential pulse voltammetry by using a carbon paste electrode. The linear response was obtained in the range of 0.05 mM and 5 mM for GSH concentration (R2=0.9966) while limit of detection value was calculated as 0.017 mM. For the sample application experiments, developed system was applied to the determination of GSH in red wine samples by using the standard addition method, and an acceptable recovery value of 99.03 % was obtained.

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Centri-voltammetric detection of epinephrine

Abstract: In this study, centri-voltammetry was applied to epinephrine detection for the first time.

Cited by 9 publications

References 27 publications

Centri‐Voltammetric Folic Acid Detection

Centri‐Voltammetric Folic Acid Detection

Development of Apple Tissue Based Biocathode and MWCNT−Pt−Au Nanomaterial Based Bioanode Biofuel Cell

Centri‐Voltammetric GSH Detection with PDI‐C₄SH as a Carrier Material

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Centri-voltammetric detection of epinephrine

Abstract: In this study, centri-voltammetry was applied to epinephrine detection for the first time.

Cited by 9 publications

References 27 publications

Centri‐Voltammetric Folic Acid Detection

Centri‐Voltammetric Folic Acid Detection

Development of Apple Tissue Based Biocathode and MWCNT−Pt−Au Nanomaterial Based Bioanode Biofuel Cell

Centri‐Voltammetric GSH Detection with PDI‐C4SH as a Carrier Material

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Product

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Centri‐Voltammetric GSH Detection with PDI‐C₄SH as a Carrier Material