Electroanalysis of Benazepril Hydrochloride Antihypertensive Drug Using an Ionic Liquid Crystal Modified Carbon Paste Electrode

Galal, Ahmed M.; Azab, Shereen M.; Ibrahim, Asmaa

doi:10.1002/elan.201400652

Cited by 23 publications

(21 citation statements)

References 49 publications

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“…At a pH higher than 7.37, there is no charge and the current intensity is almost the same. A supreme oxidation current signal is reached at pH 2.2 where OLZ is deliberated as a positively charged species that interacts with the negatively deposited AgNPs, forming an ion-pair onto the surface of the electrode. , These results indicate the effect of PEG and AgNPs on the catalytic oxidation processes.…”

Section: Resultsmentioning

confidence: 87%

Role of Green Chemistry in Antipsychotics’ Electrochemical Investigations Using a Nontoxic Modified Sensor in McIlvaine Buffer Solution

Azab

Fekry

2019

ACS Omega

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A new low-cost green electrochemical sensor based on nontoxic polyethylene glycol (PEG) and silver nanoparticles was used to improve the sensitivity of the carbon paste electrode for the investigation of olanzapine (OLZ) in dosage arrangements and in the existence of its coadministered drug fluoxetine and in the drug formulation. Scanning electron microscopy measurements were carried out to emphasize the morphology of the electrode surface. Cyclic voltammetry and differential pulse voltammetry were used to explore the diffusion and linearity behaviors of OLZ. Impedance spectroscopy measurements were determined to investigate the ac behavior of OLZ and then an ideal electrical circuit was modeled. A linear calibration was obtained from 1.0 × 10 –8 to 1.25 × 10 –4 M. The limit of detection was 1.5 × 10 –9 M, whereas the limit of quantification was 5 × 10 –9 M. The way has been wholly authenticated concerning linearity, precision, accuracy, reproducibility, sensitivity, and selectivity.

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Section: Resultsmentioning

confidence: 87%

Role of Green Chemistry in Antipsychotics’ Electrochemical Investigations Using a Nontoxic Modified Sensor in McIlvaine Buffer Solution

Azab

Fekry

2019

ACS Omega

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“…Also, the abundance of negative π‐electrons on CNTs surfaces had a great affinity for the positively charged ILCs . In previous work, we demonstrated that different ionic liquid crystals can be used as excellent active modifiers in the determination of several organic compounds .…”

Section: Introductionmentioning

confidence: 94%

Electrochemical Determination of Neurotransmitters at Crown Ether Modified Carbon Nanotube Composite: Application for Sub‐nano‐sensing of Serotonin in Human Serum

2018

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We propose an electrochemical sensor based on applying two successive thin layers from a mixture of multiwalled carbon nanotubes‐ionic liquid crystal and crown ether at glassy carbon electrode surface (GC/(CNTs‐ILC)/Crown). The sensor was used for sensitive determination of neurotransmitters based on effective synergism between its components. The compact conducting surface of (CNTs‐ILC) with large surface area allowed the assembling of stable host‐guest inclusion complexes between crown ethers and neurotransmitters. The GC/(CNTs‐ILC)/Crown exhibited excellent electro‐catalytic activity toward the determination of serotonin (ST) in a wide linear dynamic range: 0.005 μmol L−1 to 100 μmol L−1. In the concentration range 0.005 μmol L−1 to 1 μmol L−1, the detection limit is 2.03×10−10 mol L−1 and quantification limit is 6.78×10−10 mol L−1 with correlation coefficient 0.999. The sensor was successfully applied for ST detection in human serum samples with satisfied recovery results. The sensor showed excellent analytical performance for the determination of ST in terms of low detection limit, good sensitivity and reproducibility. Furthermore excellent anti‐interference ability and simultaneous determination of ST in presence of other compounds as ascorbic acid, dopamine and antidepressant drug were achieved.

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“…Upon modification with ILC, blurry shape with greater surface area was obtained ( Figure 1B). The moderate viscosity and good conductivity of the ILC facilitated its distribution into the void spaces between the graphite flakes and enhanced its dispersion with the graphite powder paste [58,59]. The penetration of the highly conductive ILC between the graphite flakes affected greatly the conductivity of the paste and also resulted in more ordered films inside the paste due to the solid state structure of ILC and its molecular orientation ordering characteristic [27,73,74].…”

Section: Introductionmentioning

confidence: 98%

Ionic Liquid Crystals Modifier for Selective Determination of Terazosin Antihypertensive Drug in Presence of Common Interference Compounds

Atta

BinSabt

Hassan³

et al. 2017

Crystals

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Electrochemical sensor was fabricated based on carbon paste electrode modified with an ionic liquid crystal ILC (2-chloro-1,3-dimethyl-imidazolidinium hexafluorophosphate) in presence of sodium dodecyl sulfate for the selective electrochemical determination of Terazosin (TZ) in presence of common interference compounds. The electrode performance was compared in presence of other ionic liquids ILs (1-Butyl-4-methyl pyridinium tetrafluoroborate) and (1-n-Hexyl-3-methyl imidazolium tetrafluoroborate). Ultrasensitive determination of Terazosin HCl at the ILC modified electrode in the linear dynamic ranges of 0.002 to 0.09 µmol·L −1 and 0.2 to 30 µmol·L −1 with correlation coefficients 0.996 and 0.995 and LODs 1.69 × 10 −11 mol·L −1 and 6.43 × 10 −9 mol·L −1 , respectively, were obtained. Selective determination of TZ in presence of uric acid and ascorbic acid and simultaneous determination of binary mixtures of TZ/dopamine, TZ/paracetamol and TZ/Morphine were also determined successfully using the modified sensor.

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Electroanalysis of Benazepril Hydrochloride Antihypertensive Drug Using an Ionic Liquid Crystal Modified Carbon Paste Electrode

Cited by 23 publications

References 49 publications

Role of Green Chemistry in Antipsychotics’ Electrochemical Investigations Using a Nontoxic Modified Sensor in McIlvaine Buffer Solution

Role of Green Chemistry in Antipsychotics’ Electrochemical Investigations Using a Nontoxic Modified Sensor in McIlvaine Buffer Solution

Electrochemical Determination of Neurotransmitters at Crown Ether Modified Carbon Nanotube Composite: Application for Sub‐nano‐sensing of Serotonin in Human Serum

Ionic Liquid Crystals Modifier for Selective Determination of Terazosin Antihypertensive Drug in Presence of Common Interference Compounds

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