Simultaneous determination of copper, lead and cadmium by cathodic adsorptive stripping voltammetry using artificial neural network

Ensafi, Ali A.; Khayamian, Taghi; Benvidi, Ali; Mirmomtaz, Elham

doi:10.1016/j.aca.2006.01.015

Cited by 175 publications

(70 citation statements)

References 25 publications

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“…For these reasons the measurement of cadmium(II) and lead(II) is becoming more important in industrial, clinical and toxicological laboratories. 2 Stripping voltammetric techniques are well known as very powerful techniques for determination of diverse range of metallic and biological targets in environmental, biological and industrial samples. Their significant sensitivity is due to their unique ability to preconcentrate target species during the preconcentration step and its combination with pulse measurement techniques that generates a highly favorable signal-to-background ratio.…”

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confidence: 99%

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

et al. 2007

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A highly sensitive and simple electroanalytical methodology is presented using an in-situ bismuth film modified edge plane pyrolytic graphite electrode (BiF-EPPGE) which is exemplified with the simultaneous determination of cadmium(II) and lead(II). Square-wave anodic stripping voltammetry is utilised with the effects of several experimental variables studied. Simultaneous additions of cadmium(II) and lead(II) were investigated where two linear ranges between 0.1 -100 and 0.1 -300 μg/L and also detection limits of 0.062 and 0.084 μg/L were obtained, respectively. The method was then successfully applied to the simultaneous determination of cadmium(II) and lead(II) in spiked river water, where recoveries of 100.5 and 98% were obtained, respectively. This electroanalytical protocol using edge plane pyrolytic graphite electrodes is one of the simplest methodologies to date using non-mercury based electrodes and is simpler and cheaper than alternatives such as carbon nanotube electrode arrays, suggesting the use of edge plane pyrolytic graphite electrode for routine sensing.

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confidence: 99%

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

et al. 2007

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“…Dalam penentuan kadmium dengan metoda voltametri stripping adsorptif, ligan-ligan seperti PTT (5-phenyl 1,2,4-triazol 3-tion), TPN (thymolphtalexone), xylenol orange, dan DMTD (2,5-dimercapto 1,3,4 thiadiazole) telah dipelajari [9,10,11,12] . Pada percobaan kali ini, digunakan kalkon sebagai pengompleks untuk penentuan kadmium dengan metoda voltametri stripping adsorptif.…”

Section: Pendahuluanunclassified

Studi Optimasi Penentuan Kadmium(ii) Secara Voltammetri Stripping Adsorptif

Deswati¹,

Suyani²,

Buhatika³

2015

J.Ris.Kim.

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Study of optimation cadmium(II) by adsorptive stripping voltammetry has been done. The aim of this study to get optimum conditions for determination of Cd(II). Parameters were done : potential accumulation, time accumulation, pH, supporting electrolite concentration and optimum of complex concentration. In this case, the optimum conditions were reached in potential accumulation -0.7 V, time accumulation 60 second, pH 7.0, NH4Cl 0.12 M, calcon concentration 0.12 mM. In the optimum condition was obtained with the relative standard deviation was 4.61% for eight replicates, measurements of 0.01 ppm. The method was applied to the direct determination of Cd(II) in water around Batang Air Dingin Lubuk Minturun and Muara Padang. Concentration Cd(II) in sample was equal to 7.359 μg/L and 3.659 μg/L with recovery of 99.04%.

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“…La protection de la surface de l'électrode contre l'effet des interférents organiques qui sont habituellement présents dans des échantillons réels, et qui affectent l'allure des voltammogrammes suite à une adsorption irréversible [24], est extrêmement importante dans l'analyse des échantillons environnementaux en l'occurrence les effluents. Plusieurs groupes ont utilisé des agents complexant sur la surface d'une électrode à film mince de mercure afin d'adsorber le plomb (II), le cadmium (II) [25] et le chrome (IV) dans des effluents naturels [26]. Wang et ses collaborateurs [27] [29][30][31][32][33][34].…”

Section: Introductionunclassified

Applications analytiques des films minces de mercure protégés par du fibrinogène pour la détermination du plomb et du cadmium dans des échantillons d’eaux usées et d’eaux de mer

Imane¹,

Mama²,

Aziz³

et al. 2010

Afrique Science: Revue Internationale Des Sciences Et Technologie

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RésuméL'objectif de ce travail est le développement d'un capteur électrochimique à base d'un film mince de mercure protégé par du fibrinogène (Fbg). La préparation, l'optimisation, la caractérisation et l'application des électrodes à film mince de mercure modifiées par du fibrinogène sont étudiées. L'électrode de travail est une électrode à pâte de carbone modifiée par simple adsorption du fibrinogène contenu dans une solution aqueuse en quantité adéquate. Le film de mercure est électrodéposé à des potentiels négatifs sur l'électrode modifiée. Les paramètres expérimentaux tels que la concentration du fibrinogène, le temps de déposition et le potentiel de préconcentration sont étudiés. Les performances de cette électrode sont ensuite évaluées pour la détermination simultanée du plomb et du cadmium en présence de différents surfactants tels que la gélatine, l'albumine, le SDS et le Tween 20. Les limites de détection obtenues sont de 5.10 Abstract Analytical application of fibrinogen-coated mercury film electrodes for the detection of lead and cadmium in water samplesThe aim of this study was the development of sensor based on fibrinogen (Fbg) coated mercury film electrodes at carbon paste electrode in the perspective of in-field stripping analysis of heavy metals in complex matrix. The preparation, optimization and characterization of coatings of Fibrinogen (Fbg) for the modification of thin mercury film electrodes and its application for the detection of trace metals have been described. The modified carbon paste electrode was prepared by a simple adsorption of fibrinogen from an aqueous solution containing an adequate quantity of fibrinogen. The Mercury film was then prepared by electrodeposition through the fibrinogen coating. The experimental parameters such as concentration of fibrinogen, deposition time and deposition potential were investigated. The performance of this electrode is evaluated in a presence of different surfactants such as gelatine, albumin, SDS and Tween 20, while lead and cadmium were employed as test metal ions. Using selected conditions the limits of detection were 5.10 for lead and cadmium, respectively. Since fibrinogen coated mercury film showed the best performance and increased efficiency against surfactants when comparing to the conventional mercury film, it was used for the analysis of trace metals in environmental samples of waters and industrial effluents.

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Simultaneous determination of copper, lead and cadmium by cathodic adsorptive stripping voltammetry using artificial neural network

Cited by 175 publications

References 25 publications

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

Electroanalytical Determination of Cadmium(II) and Lead(II) Using an in-situ Bismuth Film Modified Edge Plane Pyrolytic Graphite Electrode

Studi Optimasi Penentuan Kadmium(ii) Secara Voltammetri Stripping Adsorptif

Applications analytiques des films minces de mercure protégés par du fibrinogène pour la détermination du plomb et du cadmium dans des échantillons d’eaux usées et d’eaux de mer

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