Carbon black-chitosan film-based electrochemical sensor for losartan

Silva, Laís Pereira; Silva, Tiago; Moraes, Fernando C.; Fatibello‐Filho, Orlando

doi:10.1007/s10008-020-04541-1

Cited by 14 publications

(5 citation statements)

References 45 publications

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“…The sample preparation followed as described by Silva et . [46]. First, ten tablets of each sample were weighed to determine the average mass of one tablet.…”

Section: Methodsmentioning

confidence: 99%

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

et al. 2021

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Glyceline, reline, or ethaline deep eutectic solvents and carbon black nanoparticles within a crosslinked chitosan film are investigated as glassy carbon electrode modifiers for the first time. The selected 5 mg mL−1 glyceline modified GCE was characterized by cyclic voltammetry, electrochemical impedance spectroscopy, and scanning electron microscopy. Simultaneous determination of acetaminophen and diclofenac by differential pulse adsorptive stripping voltammetry (DPAdSV) presented limits of detection of 2.6×10−8 and 5.2×10−8 mol L−1 for acetaminophen and diclofenac, respectively, in pharmaceutical and biological samples. The obtained results were compared with those obtained by HPLC at a confidence level of 95 %.

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“…The sample preparation followed as described by Silva et . [46]. First, ten tablets of each sample were weighed to determine the average mass of one tablet.…”

Section: Methodsmentioning

confidence: 99%

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

et al. 2021

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“…It is primarily used for the management of hypertension and diabetic nephropathy, also indicated for the reduction of stroke risk. It was determined alone or simultaneously with other drugs by various techniques including spectroscopic techniques [12][13][14][15][16][17][18][19], electrochemical methods [20,21], and chromatographic techniques [22,23].…”

Section: Introductionmentioning

confidence: 99%

Eco‐friendly simultaneous estimation of atenolol and losartan potassium in spiked human plasma via synchronous fluorescence with sustainability assessment

Ghozzy,

El‐Enany,

Tolba

et al. 2024

Luminescence

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A green, sensitive, and fast spectrofluorimetric technique for the simultaneous determination of atenolol (ATN) and losartan potassium (LSR) was developed. The proposed technique relied on the implementation of a first derivative synchronous fluorescence spectroscopy for the determination of the investigated drugs simultaneously without pretreatment procedures. The synchronous fluorescence of both drugs was measured in methanol at Δλ of 100 nm, and the first derivative peak amplitudes (1D) were measured at 321 nm for ATN and 348 nm for LSR, each at the zero‐crossing point of the other. The method was rectilinear over the concentration ranges of 100–1000 ng/mL and 50–500 ng/mL for ATN and LSR, respectively. The proposed technique was successfully applied for the determination of the studied drugs in their laboratory‐prepared mixture and pharmaceutical formulations, demonstrating high mean recoveries of 100.54% for ATN and 100.62% for LSR, without interference from common excipients. The results were in good agreement with those obtained by the comparison method. Three recent greenness assessment tools, the Eco‐Scale tool, the Green Analytical Procedure Index (GAPI) metric, and the Analytical GREEnness metric approach, were employed to affirm the greenness of the proposed method. The developed method was proven to be eco‐friendly.

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“…Thus, CB's molecular adsorption largely depends on its surface area, high microporosity, and material source. In addition, CBN is cheaper than other carbon materials such as carbon nanotubes and graphene, which has allowed it to be widely applied as sorbent material 8,9 and for the development of low-cost electrochemical sensors 10,11 . The main difference between CB and black Carbon (elemental Carbon) is the lower content of extractable organic and inorganic compounds (less than 1%) 12 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of seed-based Carbon Black Agglomerates: Application as sorbent material using a novel microextraction technique for dexamethasone in urine sample determination

Ordoñez López,

García,

Ordoñez Trochez

et al. 2023

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The growing development of Nanotechnology has allowed the synthesis and characterization of nanomaterials with peculiar physicochemical properties. These nanomaterials have been applied in various scientific and industrial sectors. The present study established the synthesis of carbon black agglomerates (CBA) from waste vegetal materials as a source of renewable raw materials using a simple, fast, and effective procedure. Once this nanostructured material was obtained, several analytical techniques were applied to establish its main characteristics, including X-ray diffraction, Fourier transform infrared spectroscopy, Brunauer–Emmett–Teller (BET) theory analysis, and SEM imaging. The results of this characterization have made it possible to establish that these materials have properties that make them suitable for application as extracting sorbents in microextraction sample treatment techniques under the green analytical chemistry approach. In this study, we applied Pipette-tip SPE microextraction for pharmaceutical compound extraction studies, preparing extraction devices with less than five milligrams of the sorbent. The results showed high extraction percentages for compounds such as paracetamol, caffeine, diazepam, and dexamethasone. Finally, an application example of the last compound is presented, developing a procedure for its determination in urine samples by high-performance liquid chromatography with diode array detection (HPLC-DAD) chromatographic analysis with high merit figures in terms of simplicity, high extraction efficiency, and environmental friendliness. Keywords: carbon black; nanostructured material; olive seed; microextraction; biological samples

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Carbon black-chitosan film-based electrochemical sensor for losartan

Cited by 14 publications

References 45 publications

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

A Novel Electrochemical Glassy Carbon Electrode Modified with Carbon Black and Glyceline Deep Eutectic Solvent within a Crosslinked Chitosan Film for Simultaneous Determination of Acetaminophen and Diclofenac

Eco‐friendly simultaneous estimation of atenolol and losartan potassium in spiked human plasma via synchronous fluorescence with sustainability assessment

Synthesis and characterization of seed-based Carbon Black Agglomerates: Application as sorbent material using a novel microextraction technique for dexamethasone in urine sample determination

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