Electrochemical Oxidation of Sulfasalazine at a Glassy Carbon Electrode

Buoro, Rafael M.; Diculescu, Victor C.; Lopes, Ilanna C.; Serrano, Sı́lvia Helena Pires; Oliveira-Brett, Ana Maria

doi:10.1002/elan.201400053

Cited by 23 publications

(7 citation statements)

References 27 publications

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“…When high pH values were reached, the undissolved phenol form predominates in most of the solution. The possible electrooxidation mechanism of CA could be proposed via the oxidations of −OH groups as shown in Figure d) .…”

Section: Resultsmentioning

confidence: 99%

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Fast, Simple and Sensitive Determination of Coumaric Acid in Fruit Juice Samples by Magnetite Nanoparticles‐zeolitic Imidazolate Framework Material

Şenocak

2020

Electroanalysis

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In this work, magnetic iron nanoparticle (Fe 3 O 4) was functionalized a zeolitic imidalozate framework (ZIF-4) material by co-precipitation process to provide a magnetic hybrid nanomaterial, viz. Fe 3 O 4 @ZIF-4. The structural characterization was performed different spectroscopic, thermal and microscopic techniques. Moreover, voltammetric sensor properties of Fe 3 O 4 @ZIF-4 nanohybrid material for determination of p-coumaric acid (CA) were performed by differential pulse (DPV) and cyclic voltammetry (CV). A reliable and selective electroanalytical method exhibited for the detection of CA. It was found that the deposition of Fe 3 O 4 @ZIF-4 nanohybrid on a glassy carbon electrode (GCE) brought about 2.3, 3.5 and 5.0 fold more sensitive than Fe 3 O 4 /GCE, ZIF-4/GCE and unmodified GCE responses to CA in Britton-Robinson (BÀ R) buffer solution (a pH of 4). The detection, quantification limits and linear range of CA were determined as 0.18, 0.60 μM and 0.50-12.00 μM. The stability, repeatability and selectivity of the suggested Fe 3 O 4 @ZIF-4 modified GCE sensor was fully investigated. In addition, an application of orange juices samples was performed on modified electrode for determination of CA, which was showed by a standard addition method with verifying of High Performance Liquid Chromatography (HPLC) analysis. Besides the ease of synthesis and low price, the suggested Fe 3 O 4 @ZIF-4/GCE sensor offers repeatability, selectivity, stability and easy to apply to real samples.

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Section: Resultsmentioning

confidence: 99%

“…mechanism of CA could be proposed via the oxidations of À OH groups as shown in Figure 4d) [44][45].…”

Section: Full Papermentioning

confidence: 99%

Fast, Simple and Sensitive Determination of Coumaric Acid in Fruit Juice Samples by Magnetite Nanoparticles‐zeolitic Imidazolate Framework Material

Şenocak

2020

Electroanalysis

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“…It can reduce the clinical symptoms of disease and slows the progression of RA . In the literature, electroanalytical determination of sulfasalazine was mainly performed by; glassy carbon electrode , and carbon paste electrode . In our study, pencil graphite electrode (PGE) was selected.…”

Section: Introductionmentioning

confidence: 99%

Development of a Novel Molecularly Imprinted Overoxidized Polypyrrole Electrode for the Determination of Sulfasalazine

Köseoğlu

Durgut

2020

Electroanalysis

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A novel molecularly imprinted overoxidized polypyrrole electrode was produced for the determination of sulfasalazine (SSZ). The electrode was attained by electropolymerization of pyrrole onto a pencil graphite electrode by cyclic voltammetry. The SSZ was penetrated into the structure during the process. Differential pulse voltammetry was used to determine performance of imprinted (MIP) and non‐imprinted (NIP) electrodes. The linear range was attained in the range between 1.0 to 10.0 ppm of SSZ (R2=0.9993) with a detection limit of 0.265 ppm. The developed MIP electrode and analysis method are suitable for analysis of SSZ with reproducible response and precision in real samples.

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“…Numerous analytical techniques have been reported for determination of SSZ and its metabolites in different samples including high-performance liquid chromatography (HPLC), [6,7] liquid chromatography, [8] thin-layer chromatographydensitometry, [9] capillary electrophoresis-mass spectrometry, [10] solid phase extraction (SPE), [11] voltammetry, [3,12,13] spectrofluorimetry, [1,14] enzyme-linked immunosorbent assay, [4] spectrophotometry [15] and so on.…”

Section: Introductionmentioning

confidence: 99%

Molecularly Imprinted Sol‐Gel Sensing Film‐Based Optical Sensor for Determination of Sulfasalazine Antibiotic

et al. 2020

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In this study, a simplistic optical sensing approach for determination of sulfasalazine (SSZ) antibiotic has been developed by combining molecular imprinting and sol-gel techniques (MIP-SG). The sol-gel solution containing sulfasalazine (target molecule) was deposited as a thin film on the pretreated microscope glass slides to fabricate imprinted optical sensors. The binding properties of the sensor toward sulfasalazine were evaluated by UV-Vis spectroscopy method. The influence of some experimental parameters affecting on the manufacturing process as well as the response of MIP-SG sensing film were studied. Under optimal conditions, the UV-Vis signals of proposed sensor showed a linear relationship with the SSZ concentration in the range from 0.5 to 80.0 μg mL À 1 (R 2 = 0.994) and detection limit of 0.26 μg mL À 1 with benefits of good reproducibility (RSD = 4.12 %) and storage stability. This sensor was successfully used for determination of SSZ in well water, pharmaceutical formulation and human urine samples.

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Electrochemical Oxidation of Sulfasalazine at a Glassy Carbon Electrode

Cited by 23 publications

References 27 publications

Fast, Simple and Sensitive Determination of Coumaric Acid in Fruit Juice Samples by Magnetite Nanoparticles‐zeolitic Imidazolate Framework Material

Fast, Simple and Sensitive Determination of Coumaric Acid in Fruit Juice Samples by Magnetite Nanoparticles‐zeolitic Imidazolate Framework Material

Development of a Novel Molecularly Imprinted Overoxidized Polypyrrole Electrode for the Determination of Sulfasalazine

Molecularly Imprinted Sol‐Gel Sensing Film‐Based Optical Sensor for Determination of Sulfasalazine Antibiotic

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