Experimental Optimization of Selective Hydrazine Detection in Flow Injection Analysis Using a Carbon Paste Electrode Modified with Copper Porphyrin Occluded into Zeolite Cavity

Guerra, Silvia V.; Kubota, Lauro T.; Xavier, Claudia Regina; Nakagaki, Shirley

doi:10.2116/analsci.15.1231

Cited by 35 publications

(21 citation statements)

References 24 publications

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“…Voltammetric response of Fe 2 O 3 þ CP epoxy composite was not satisfactory probably due to material loss from the three phase boundary (carbon, iron(III) oxide, water) as electrolysis proceeds destroying electrical contact with iron(III) oxide particles. Good electrochemical properties of the iron(III) oxide modified carbon powder composite electrodes towards hydrogen peroxide and hydrazine, sub- [31] 5 -60 1 ds DNA-coated carbon paste electrode [32] 62 Pd plated BDD microelectrode array [33] 10 -102 1.8 8 NiHCF-modified paraffin impregnated graphite electrode [34] 400 -4000 96…”

Section: Discussionmentioning

confidence: 99%

Iron(III) Oxide Graphite Composite Electrodes: Application to the Electroanalytical Detection of Hydrazine and Hydrogen Peroxide

et al. 2006

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Composite electrodes based on iron(III) oxide, Fe 2 O 3 , carbon powder and epoxy resin have been prepared and characterized using electrochemical methods and X-ray photoelectron spectroscopy (XPS). Initially composite electrodes were made by mixing micron sized carbon powder surface with iron(III) oxide. However, the voltammetric responses were unsatisfactory. Therefore, a new type of composite electrodes was made using carbon powder modified with iron(III) oxide via a wet impregnation procedure. This technique involves saturation of the carbon powder with iron(III) nitrate followed by thermal treatment at ca. 623 K forming iron(III) oxide on the surface of the carbon powder. Several key parameters such as percentage of carbon powder and iron(III) oxide as well as electrode geometry (electrode length) have been optimized. Composite electrodes show attractive performances for the electrochemical detection of hydrogen peroxide and hydrazine with detection limits of 0.12 mM and 1.18 mM respectively. These limits of detection are comparable to the detection limits attained by alternative analytical techniques and are lower than that obtained by other electroanalytical methods.

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Section: Discussionmentioning

confidence: 99%

Iron(III) Oxide Graphite Composite Electrodes: Application to the Electroanalytical Detection of Hydrazine and Hydrogen Peroxide

et al. 2006

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“…Different detectors have been used in the analysis of pharmaceuticals by FIA making it possible to consider different responses such as the absorbance in the UV/Vis region [11,12,13,14], the chemiluminescence intensity [15,16,17] or the phosphorescence intensity [18]. Also, different analytical signals have been used, such as the peak height [19,20,21,22,23,24,25] or the residence time [21]. However, other criteria can be considered for optimisation purposes, such as the highest sensitivity [26], or the maximum signal together with the maximum number of injections per hour [27].…”

Section: Selection Of the Responsementioning

confidence: 99%

An overview of qualimetric strategies for optimisation and calibration in pharmaceutical analysis using flow injection techniques

Bosque-Sendra

Gámiz‐Gracia

Garcı́a-Campaña

2003

Analytical and Bioanalytical Chemistry

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Flow Injection analysis represents an attractive tool because of its great advantages, such as versatility, speed, high sampling rate and wide applicability in the field of pharmaceutical analysis. However, due to the inherent characteristics of the technique, the choice of the best set of operational and chemical conditions is complicated and the conventional univariate optimisation method present some limitations, mainly due to fact that the interdependence of variables is not considered. In relation to the calibration process, because of the transient character of the signals obtained using FIA manifolds coupled with different detection techniques, different strategies can be used in calibration to solve some problems related to the nature of the signal thereby improving the performance characteristics of the method. This paper offers an overview of different methodologies used in optimisation based on the use of statistically designed experiments and some strategies developed for calibration applied to the analysis of pharmaceuticals.

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“…Glassy carbon modified by epinephrine [9], chlorogenic acid [10], Nafion-ruthenium [11], cobalt and nickel hexacyanoferrate [12], coblt pentacyanonitrosylferrate film [13], a new family of hydroquinone salophen derivatives [14], 4-hydroxy-2,2,6,6-piperidinyloxy [15], o-aminophenol [16], electrochemically pretreated glassy carbon electrodes [17], copper-porphyrin included zeolite [18], cobalt (III/II) complexes [19] and silica doped nickel phthalocyanine tetrasulfonate [20] modified carbon paste electrodes, and graphite modified by naphthalocyanine [21], copper-palla-dium alloy nanoparticle plated electrodes [22], carbon fiber microelectrodes modified with rhodium [23] and Prussian blue modified carbon ceramic electrode [24] are of various modified electrodes used in electrocatalytic oxidation of hydrazine. Despite so much modified electrodes, a literature survey confirms that effort about the preparation of new patterns for electrocatalytic oxidation of hydrazine is still in progress.…”

Section: Introductionmentioning

confidence: 99%

Electrocatalytic Oxidation and Voltammetric Determination of Hydrazine on the Tetrabromo‐p‐Benzoquinone Modified Carbon Paste Electrode

2007

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The electrochemical properties of hydrazine studied at the surface of a carbon paste electrode spiked with p-bromanil (tetrabromo-p-benzoquinone) using cyclic voltammetry (CV), double potential-step chronoamperometry and differential pulse voltammetry (DPV) in aqueous media. The results show this quinone derivative modified carbon paste electrode, can catalyze the hydrazine oxidation in an aqueous buffered solution. It has been found that under the optimum conditions (pH 10.00), the oxidation of hydrazine at the surface of this carbon paste modified electrode occurs at a potential of about 550 mV less positive than that of a bar carbon paste electrode. The electrocatalytic oxidation peak current of hydrazine showed a linear dependent on the hydrazine concentrations and linear analytical curves were obtained in the ranges of 6.00 Â 10 À5 M -8.00 Â 10 À3 M and 7.00 Â 10 À6 M -8.00 Â 10 À4 M of hydrazine concentration with CV and differential pulse voltammetry (DPV) methods, respectively. The detection limits (3s) were determined as 3.6 Â 10 À5 M and 5.2 Â 10 À6 M by CV and DPV methods. This method was also used for the determination of hydrazine in the real sample (waste water of the Mazandaran wood and paper factory) by standard addition method.

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Experimental Optimization of Selective Hydrazine Detection in Flow Injection Analysis Using a Carbon Paste Electrode Modified with Copper Porphyrin Occluded into Zeolite Cavity

Cited by 35 publications

References 24 publications

Iron(III) Oxide Graphite Composite Electrodes: Application to the Electroanalytical Detection of Hydrazine and Hydrogen Peroxide

Iron(III) Oxide Graphite Composite Electrodes: Application to the Electroanalytical Detection of Hydrazine and Hydrogen Peroxide

An overview of qualimetric strategies for optimisation and calibration in pharmaceutical analysis using flow injection techniques

Electrocatalytic Oxidation and Voltammetric Determination of Hydrazine on the Tetrabromo‐p‐Benzoquinone Modified Carbon Paste Electrode

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