Square-wave voltammetric determination of rosuvastatin calcium in pharmaceutical and biological fluid samples using a cathodically pretreated boron-doped diamond electrode

Silva, Tiago; Pereira, Gabriel Fernandes; Fatibello‐Filho, Orlando; Eguiluz, Katlin I.B.; Salazar‐Banda, Giancarlo R.

doi:10.1016/j.diamond.2015.06.013

Cited by 26 publications

(14 citation statements)

References 45 publications

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“…The effect of electrochemical pretreatments of BDD electrodes was investigated in several works . Usually, this procedure decreases the background current of the electrode with consequent improvement in the limits of detection as well as increasing the stability (reproducibility) of the electrode response .…”

Section: Methodsmentioning

confidence: 99%

Development of a Novel Versatile Method for Determination of two Antihistamines in Association with Naphazoline Using Cathodically Pretreated Boron‐doped Diamond Electrode

et al. 2018

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Antihistamines such as pheniramine (PHN) or chlorpheniramine (CPH) are commonly associated with naphazoline (NPZ) in eye drops and nasal decongestants. In this work, a batch‐injection analysis system with multiple pulse amperometric (BIA‐MPA) detection has been applied for the first time for fast simultaneous determination of naphazoline (NPZ) and pheniramine (PHN) or NPZ and chlorpheniramine (CPH). PHN or CPH was selectively detected at +1.1 V and both PHN and NPZ or CPH and NPZ were detected at +1.3 V using boron doped diamond (BDD) as working electrode and Britton‐Robinson (BR) buffer (pH=10.0) as supporting electrolyte. The current of NPZ can then be obtained by subtraction of the currents detected at both potential pulses and applying a correction factor (CF). The proposed method presented good intra‐day repeatability (RSD between 0.7 and 3.2 % for PHN; 0.7 and 2.1 % for CPH; 1.5 and 4.0 % for NPZ; n=20), high analytical frequency (>80 injections h−1), and limits of detection of 0.64, 0.47 and 0.11 μmol L−1 for PHN, CPH and NPZ, respectively. The results obtained with the proposed method are in agreement with those obtained by HPLC (95 % confidence level).

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Section: Methodsmentioning

confidence: 99%

Development of a Novel Versatile Method for Determination of two Antihistamines in Association with Naphazoline Using Cathodically Pretreated Boron‐doped Diamond Electrode

et al. 2018

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“…As pointed out by Kapalka et al [16], BDD is an ideal anode material for the mineralization of organics; thus, it is being widely used nowadays in direct electrooxidation [10,[17][18][19][20] and in combined treatment methods such as electro-Fenton [21][22][23], solar electro-Fenton [22], or sonoelectrochemical [24], as well as in the electrochemical detection [25][26][27], of distinct classes of organic substances. High mineralization rates and current efficiencies are attained with BDD anodes due to properties such as large electrochemical window and good corrosion stability [28], as well as the presence of quasi-free hydroxyl radicals on their surfaces [16,29].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical mineralization of norfloxacin using distinct boron-doped diamond anodes in a filter-press reactor, with investigations of toxicity and oxidation by-products

Coledam

Aquino

Silva³

et al. 2016

Electrochimica Acta

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The contamination of water bodies by antibiotics is a cause of concern due to chronic toxic effects and the possible development of resistance to them by microorganisms, which can lead to serious health problems to humans. Thus, in this work, for the first time the degradation of norfloxacin (100 mg L À1 NOR in 0.1 mol L À1 Na 2 SO 4) is carried out electrochemically, using a filter-press flow reactor with boron-doped diamond (BDD) anodes of distinct characteristics. The investigated variables (and their ranges) were solution pH (3, 7, 10, and without specific control), current density (10, 20, and 30 mA cm À2), temperature (10, 25, and 40 C), and boron content-sp 2 /sp 3 carbon ratio of the BDD anode (100 ppm-215, 500 ppm-325, and 2500 ppm-284). The NOR electrodegradation performance of the distinct anodes was assessed by monitoring the degradation by-products (aromatic compounds and carboxylic acids), NOR concentration and total organic carbon concentration of the electrolyzed solutions, as well as their toxicity to Escherichia coli (i.e. growth inhibition). For the complete removal of NOR, the best condition (not pH dependent) was attained at 10 mA cm À2 and 40 C, when the system is under mass transfer limitations. Concerning NOR oxidation and mineralization rates, mineralization current efficiency, energy consumption, and degradation products, similar results (including the complete detoxification of the electrolyzed solution) were attained for all tested BDD anodes under mass or charge transfer controlled processes. Clearly, the oxidation power of the tested BDD anodes is not affected by the values of their boron content-sp 2 /sp 3 carbon ratio.

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“…This is possible due to the increased mechanical stability of m-AgSAE compared to traditional electrodes utilizing liquid mercury. Due to the use of m-AgSAE this method is more sensitive than comparable methods using f-AgSAE [22] and BDDE [24] and the electrode is less prone to passivation and easier to maintain. This is even more true when compared to the more sensitive but much more complex electrochemical nanobiosensors [15][16][17].…”

Section: Discussionmentioning

confidence: 99%

“…HMDE has a slightly better performance than m-AgSAE, but lack its mechanical robustness, thus being more prone to mechanical failure. Boron doped diamond electrodes (BDDE) also have a place as sensors for herbicide determination, but their sensitivity is no match for an m-AgSAE [24]. None of the published methods uses voltammetry at m-AgSAE.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Determination of Aclonifen at a Silver Amalgam Electrode in Drinking and River Water

Novotný

Barek

2017

Ecological Chemistry and Engineering S

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Abstract:A method for the determination of pesticide Aclonifen (AC) in drinking and river water by differential pulse voltammetry (DPV) on a meniscus modified silver solid amalgam electrode (m-AgSAE) using solid phase extraction (SPE) as a cleanup and preconcentration procedure is described. The limit of detection (LOD) for direct DPV determination of AC in deionized water is 2.7·10 -8 mol·dm -3. LOD for DPV determination of AC in tap water after SPE is 1.6·10 -10 mol·dm -3, the recovery being 55%. LOD for the determination of AC in Vltava river water is 1.9·10 -9 mol·dm -3, the recovery being 65%. Humic acids interfere with the determination in river water; this problem can be resolved by adjusting the pH of the extracted sample to 6. The advantages of this approach are high sensitivity, low LOD, quick and easy sample preparation and fast determination.

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Square-wave voltammetric determination of rosuvastatin calcium in pharmaceutical and biological fluid samples using a cathodically pretreated boron-doped diamond electrode

Cited by 26 publications

References 45 publications

Development of a Novel Versatile Method for Determination of two Antihistamines in Association with Naphazoline Using Cathodically Pretreated Boron‐doped Diamond Electrode

Development of a Novel Versatile Method for Determination of two Antihistamines in Association with Naphazoline Using Cathodically Pretreated Boron‐doped Diamond Electrode

Electrochemical mineralization of norfloxacin using distinct boron-doped diamond anodes in a filter-press reactor, with investigations of toxicity and oxidation by-products

Voltammetric Determination of Aclonifen at a Silver Amalgam Electrode in Drinking and River Water

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