Multiwalled carbon nanotube/ionic liquid paste electrode for voltammetric determination of sulfachlorpyridazine

Aleixo, Herbert; Okumura, Leonardo Luiz; Gurgel, Alexandre; Silva, Astréa Filomena de Souza; Diniz, Juliana Aparecida

doi:10.1039/c9ay00094a

Cited by 15 publications

(3 citation statements)

References 38 publications

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“…However, it has been verified through literature studies using carbon-based sensors that these antibiotics respond at other potential ranges. [41][42][43][44] The concentrations of CIP in the milk samples were below the limit of detection, and the values determined in the pharmaceutical formulations ranged from 496 to 505 mg, which was consistent with the HPLC results and label values of the commercial drugs. In addition, the electrochemical method did not require time-consuming sample handling (simple dilution) or expensive instrumentation.…”

Section: Figures Of Merit Of the Proposed Sensor For Cip Determinatiosupporting

confidence: 68%

Square-Wave Voltammetry Determination of Ciprofloxacin in Pharmaceutical Formulations and Milk Using a Reduced Graphene Oxide Sensor

Faria¹,

Pereira²,

Azevedo³

et al. 2019

J. Braz. Chem. Soc.

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In this paper, a simple, sensitive and precise electroanalytical method was developed using a chemically-reduced graphene-oxide (CRGO)-modified glassy carbon electrode and square wave voltammetry (SWV) for determination of ciprofloxacin in pharmaceutical formulations (tablets) and milk samples. Advantages of this sensor include a potential displacement of 100 mV and a 5-fold current increase for the electrochemical oxidation of ciprofloxacin, which resulted in a highly sensitive sensor, when compared to unmodified electrode. The improved properties of the modified electrode are likely due to the formation of a porous surface evidenced by the change in electrode kinetics (thin-layer diffusion process). The proposed sensor is free from interference of sample matrix (pharmaceutical formulations and low/high-fat milk) avoiding cumbersome processes such as previous separations, solvent extraction, or sample filtration (samples were only diluted in Britton-Robinson buffer solution). The results by SWV showed a limit of detection of 0.21 µmol L -1 (correspondent to 0.069 mg L -1 ), which is lower than the ones obtained using other carbon-based electrodes, relative standard deviations lower than 12%, and satisfactory recoveries in the range from 84 to 109%. The results obtained were statistically similar (95% confidence level) with those performed through high-performance liquid chromatography (HPLC).

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Section: Figures Of Merit Of the Proposed Sensor For Cip Determinatiosupporting

confidence: 68%

Square-Wave Voltammetry Determination of Ciprofloxacin in Pharmaceutical Formulations and Milk Using a Reduced Graphene Oxide Sensor

Faria¹,

Pereira²,

Azevedo³

et al. 2019

J. Braz. Chem. Soc.

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“…The term molecularly imprinted polymer was further searched in the results of polymer. As shown, carbon [28,30,40,41,46,[107][108][109][110][111][112][113][114] materials are the most widely used adsorbents for enrichments of sulfonamides. Because the key for efficient enrichments of sulfonamides is to improve the adsorption capacity of the adsorbent, investigations of the adsorption properties and mechanisms are necessary.…”

Section: Adsorbentmentioning

confidence: 99%

“…Carbon materials used for sulfonamide enrichment include GO [40,[107][108][109][110][111][112][113][114][115][116][117][118][119], CNTs [30,33,46,110,111], graphene [112][113][114], and other carbon materials. These all possess the merits of good electrical, mechanical, physical, and chemical properties, and a very high surface to volume ratio [115].…”

Section: Adsorbentmentioning

confidence: 99%

Trends in sensitive detection and rapid removal of sulfonamides: A review

Xie

Huang

Zheng

et al. 2020

J of Separation Science

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Sulfonamides in environmental water, food, and feed are a major concern for both aquatic ecosystems and public health, because they may lead to the health risk of drug resistance. Thus, numerous sensitive detection and rapid removal methodologies have been established. This review summarizes the sample preparation techniques and instrumental methods used for sensitive detection of sulfonamides.Additionally, adsorption and photocatalysis for the rapid removal of sulfonamides are also discussed. This review provides a comprehensive perspective on future sulfonamide analyses that have good performance, and on the basic methods for the rapid removal of sulfonamides. K E Y W O R D Srapid removal, sample preparation techniques, sensitive detection, sulfonamides 1634

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Microfluidic devices: biosensors

Farré¹,

Barceló²

2020

Chemical Analysis of Food

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Multiwalled carbon nanotube/ionic liquid paste electrode for voltammetric determination of sulfachlorpyridazine

Abstract: In this study, voltammetric techniques have been applied to rapidly determine residues of sulfachloropyridazine (SCP) in milk samples.

Cited by 15 publications

References 38 publications

Square-Wave Voltammetry Determination of Ciprofloxacin in Pharmaceutical Formulations and Milk Using a Reduced Graphene Oxide Sensor

Square-Wave Voltammetry Determination of Ciprofloxacin in Pharmaceutical Formulations and Milk Using a Reduced Graphene Oxide Sensor

Trends in sensitive detection and rapid removal of sulfonamides: A review

Microfluidic devices: biosensors

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