Fourier transform cyclic voltammetric technique for monitoring ultratrace amounts of salbutamol at gold ultra microelectrode in flowing solutions

Ganjali, Mohammad Reza; Norouzi, Parviz; Ghorbani, Maryam; Sepehri, Ali

doi:10.1016/j.talanta.2005.01.045

Cited by 112 publications

(31 citation statements)

References 17 publications

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“…The EC measurement based on the FFTdigital filters is widely used by Norouzi group for determination of several organic compounds and drugs such as; Diphenhydramine (Norouzi et al 2010 b), Lidocaine (Norouzi at al. 2007), Methyldopa ), and Salbutamol (Ganjali et al 2005). The EC method under reported condition was named FFT Continuous Cyclic Voltammetry (FFTCCV).…”

Section: Application Of Fft In Cyclic Potential Sweep Voltammetry Basmentioning

confidence: 99%

Application of Fast Fourier Transforms in Some Advanced Electroanalytical Methods

Norouzi¹,

Pirali-Hamedani²,

Garakani³

et al. 2011

Fourier Transforms - New Analytical Approaches and FTIR Strategies

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Section: Application Of Fft In Cyclic Potential Sweep Voltammetry Basmentioning

confidence: 99%

Application of Fast Fourier Transforms in Some Advanced Electroanalytical Methods

Norouzi¹,

Pirali-Hamedani²,

Garakani³

et al. 2011

Fourier Transforms - New Analytical Approaches and FTIR Strategies

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“…Like stripping voltammetry methods, here, the electrode response is proportional to the electrode coverage. [25][26][27][28][29][30][31][32][33][34] Measurements carried out for small analyte concentrations allow the estimation of the detection limit C DL :…”

Section: Optimization Of Fft-sw Frequency and Amplitudementioning

confidence: 99%

A dysprosium nanowire modified carbon paste electrode for determination of levodopa using fast Fourier transformation square-wave voltammetry method

Daneshgar

Norouzi

Ganjali

et al. 2009

Colloids and Surfaces B: Biointerfaces

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A new detection technique called the fast Fourier transform square-wave voltammetry (FFT SWV) is based on measurements of electrode admittance as a function of potential. The response of the detector (microelectrode) is fast, which makes the method suitable for most applications involving flowing electrolytes. The carbon paste electrode was modified by nanostructures to improve better sensivity. The redox property of Diphenhydramin was used for determination of it in human serum and urine samples. Synthesized dysprosium nanowires make more effective surface like nanotubes [1-4] so they are good candidates for using as a modifier for electrochemical reactions. The drug presented one irreversible oxidation peaks at 1080mV vs. Ag/ AgCl by modified Nanowire carbon paste electrode which produced high current and reduced the oxidation potential about 300mV. Furthermore, signalto-noise ratio has significantly increased by application of discrete fast Fourier Transform (FFT) method, background subtraction and two-dimensional integration of the electrode response over a selected potential range and time window. To obtain the much sensivity the effective parameters such as frequency, amplitude and pH was optimized. As a result, LOD of 4.0 ×10-11 mol l -1 and an LOQ of 8.0× 10 -11 mol l -1 were found for determination for Diphenhydramin. A good recovery was obtained for assay spiked urine samples and a good quantification of Diphenhydramin was achieved in a commercial formulation.

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“…In this method, DQ is calculated based on all current changes at the CVs. [15][16][17][18][19][20][21][22] However, the selectivity and sensitivity of the analyte response expressed in terms of DQ strongly depend on the selection of the integration limits. One of the important aspects of this method is the application of a special digital filtration, which is applied during the measurement.…”

Section: Data Acquisition and Processingmentioning

confidence: 99%

Application of Adsorptive Voltammetry for the Detection of Sub-nano Molar Cyclizine in Biological Fluids and Tablets Using Fast Fourier Transform Continuous Cyclic Voltammetry in a Flowing System

et al. 2009

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An easy and fast Fourier transform continuous cyclic voltammetric technique (FFTCV) for monitoring of ultra trace amounts of cyclizine in a flow-injection system has been introduced in this work. The potential waveform, which was applied continuously on an Au disk microelectrode (12.5 mm in radius) consisted of the potential steps for cleaning, accumulation and potential ramp. The proposed detection method has some advantages, the greatest of which are as follows: first, it is no longer necessary to remove oxygen from the analyte solution and second, this is a very fast and appropriate technique for determination of the drug compound in a wide variety of chromatographic analysis methods. The detection limit for cyclizine was 1.8 ng ml -1 . The relative standard deviation (RSD) of the proposed technique at 5.0 ¥ 10 -7 was 2.0 for 10 runs. The influences of pH of eluent, accumulation potential, sweep rate, and accumulation time on the determination of the cyclizine were considered. The proposed method was applied to the determination of cyclizine in a pharmaceutical preparation.

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Fourier transform cyclic voltammetric technique for monitoring ultratrace amounts of salbutamol at gold ultra microelectrode in flowing solutions

Cited by 112 publications

References 17 publications

Application of Fast Fourier Transforms in Some Advanced Electroanalytical Methods

Application of Fast Fourier Transforms in Some Advanced Electroanalytical Methods

A dysprosium nanowire modified carbon paste electrode for determination of levodopa using fast Fourier transformation square-wave voltammetry method

Application of Adsorptive Voltammetry for the Detection of Sub-nano Molar Cyclizine in Biological Fluids and Tablets Using Fast Fourier Transform Continuous Cyclic Voltammetry in a Flowing System

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