Nanopalladium grained polymer nanocomposite based sensor for the sensitive determination of Melatonin

Kumar, Neeraj; Rosy, .; Goyal, Rajendra N.

doi:10.1016/j.electacta.2016.06.023

Cited by 48 publications

(17 citation statements)

References 57 publications

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“…Among these methods, spectrophotometry , spectrofluorimetry , gas chromatography/mass spectrometry , and capillary electrophoresis are commonly used. From the electroanalytical point of view, a number of studies have been published for quantification of MT or PY either alone or simultaneously with other compounds in various matrices. However, up to now, only two methods have been published for the voltammetric determination of both compounds simultaneously in drug formulations .…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Method for the Simultaneous Determination of Melatonin and Pyridoxine in Dietary Supplements Using a Cathodically Pretreated Boron‐doped Diamond Electrode

et al. 2017

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The simultaneous voltammetric determination of melatonin (MT) and pyridoxine (PY) has been carried out at a cathodically pretreated boron‐doped diamond electrode. By using cyclic voltammetry, a separation of the oxidation peak potentials of both compounds present in mixture was about 0.47 V in Britton‐Robinson buffer, pH 2. The results obtained by square‐wave voltammetry allowed a method to be developed for determination of MT and PY simultaneously in the ranges 1–100 μg mL−1 (4.3×10−6–4.3×10−4 mol L−1) and 10–175 μg mL−1 (4.9×10−5–8.5×10−4 mol L−1), with detection limits of 0.14 μg mL−1 (6.0×10−7 mol L−1) and 1.35 μg mL−1 (6.6×10−6 mol L−1), respectively. The proposed method was successfully to the dietary supplements samples containing these compounds for health‐caring purposes.

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Section: Introductionmentioning

confidence: 99%

Voltammetric Method for the Simultaneous Determination of Melatonin and Pyridoxine in Dietary Supplements Using a Cathodically Pretreated Boron‐doped Diamond Electrode

et al. 2017

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“…The slope value (>0.5) for log plot further indicated that the electron transfer process of TMS proceeded via adsorption controlled path . Thus, it is clear that the SDS modified EPPG and SDS present in the solution are not able to completely remove the adsorption of TMS.…”

Section: Resultsmentioning

confidence: 99%

“…where, f is the square wave frequency in Hz and R 2 is correlation coefficient. As the slope of log plot was >0.5, it was concluded that the electron transfer process of the electro‐oxidation of TMS was adsorption controlled, which supported the results observed using cyclic voltammetry .…”

Section: Resultsmentioning

confidence: 99%

A Simple and Highly Selective Determination of Telmisartan at Sodium Dodecyl Sulfate Modified Pyrolytic Graphite Surface

Kumar

Goyal

2018

Electroanalysis

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A simple, facile, selective and cost effective electrochemical method is proposed for the determination of telmisartan (TMS); a drug used for hypertension. A sodium dodecyl sulfate (SDS) modified edge plane pyrolytic graphite (EPPG) is prepared by simple immersion of EPPG in SDS solution at concentration greater than critical micelle concentration (CMC). The modified sensor exhibited superior sensing properties towards the oxidation of TMS. The modified surface was characterized by using the Energy dispersive X‐ray analysis, Field Emission Scanning Electron Microscopy, Electrochemical Impedance Spectroscopy and cyclic voltammetry. The quantitative investigations of the TMS were performed by applying the square wave voltammetry. The micelles of SDS form a pseudo complex with cation radical of TMS and catalyse the oxidation. The proposed sensor shows the linear calibration plot in the concentration range of 5–100 μM with sensitivity 0.2983 μA/μM and the limit of the detection of the sensor was found to be 0.082 μM. The specificity of the developed sensor was also evaluated in the presence of commonly present interfering substances in biological samples. The amount of TMS excreted in urine of the patients undergoing treatment has also been determined. The proposed method can be effectively applied for the investigation of TMS in pharmaceutical formulations and biological samples.

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“…There is an urgent need for a rapid and highly sensitive method to monitor the pandemic. In this respect, electrochemical methods are considered as sensitive, simple to operate, rapid and cost-effective as well as they are easy to use, requiring lesser time to analyze [25] , [26] , [27] , [28] , [29] , [30] , [31] , [32] , [33] , [34] , [35] , [36] . This has prompted to develop various electrochemical techniques to test and identify COVID-19.…”

Section: Introductionmentioning

confidence: 99%

“…The limit of detection (LOD) is the ability of a method to detect the presence or absence of the analytes in samples at which detection is feasible; this can be calculated using the standard deviation (σ) of the repeated analysis using blank samples and slope of the calibration equation (b) [25] , [53] , [54] as: limit of detection = 3σ/b. Another approach is that of the parametric method and precision profile.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical sensors for the detection of SARS-CoV-2 virus

Kumar

Shetti

Jagannath

et al. 2022

Chemical Engineering Journal

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145

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Nanopalladium grained polymer nanocomposite based sensor for the sensitive determination of Melatonin

Cited by 48 publications

References 57 publications

Voltammetric Method for the Simultaneous Determination of Melatonin and Pyridoxine in Dietary Supplements Using a Cathodically Pretreated Boron‐doped Diamond Electrode

Voltammetric Method for the Simultaneous Determination of Melatonin and Pyridoxine in Dietary Supplements Using a Cathodically Pretreated Boron‐doped Diamond Electrode

A Simple and Highly Selective Determination of Telmisartan at Sodium Dodecyl Sulfate Modified Pyrolytic Graphite Surface

Electrochemical sensors for the detection of SARS-CoV-2 virus

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