Systematic evaluation of sample preparation method for simultaneous voltammetric determination of Zn, Cd, Pb, and Cu in macroalgae

Almeida, Leandro S.; Streit, Nivia M.; Costa, Danielly Albuquerque da; Seus, Elisa Rosa; Andrade, Caroline Pinto de; Pereira, Cláudio M. P.; Colepicolo, Pio; Dias, Daiane

doi:10.1007/s10811-016-0935-z

Cited by 10 publications

(2 citation statements)

References 32 publications

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“…Solid electrodes or carbon-based sensors have revolutionized the voltammetric analyses for the quantification of a wide variety of environmental pollutants [10]. These determinations have been carried out with solid electrodes such as gold [11], platinum [12], glassy carbon [13], carbon paste [14], boron-doped diamond [15], Hg electrode [16], and others. However, the use of these kinds of electrodes presents some disadvantages such as high toxicity (in the case of Hg) and memory effects (solid electrodes) which decreases their performance in the target analytes detection [17].…”

Section: General Aspects Of Carbon-based Materialsmentioning

confidence: 99%

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

et al. 2023

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Nowadays, carbon‐based materials applied to the development of chemically modified sensors have been highlighted once they can generate methods with high sensitivity, stability, conductivity, accuracy and low cost. Hence, these sensors have been used in environmental monitoring in aneco‐friendlyy, sensitive, fast, efficient, inexpensive and robust way. In this review, firstly we described about carbon‐based materials and their derivatives, followed by the chemically modified carbon‐based sensors manufacturing overview and their applications in environmental analytical chemistry related to inorganic and organic compounds determinations. Future perspectives on trends of the carbon‐based materials applications in the sensor modifications are also described.

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Section: General Aspects Of Carbon-based Materialsmentioning

confidence: 99%

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

et al. 2023

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“…All electrochemical measurements were performed in a three-electrode system configuration with a hanging mercury drop electrode, Ag/AgCl (KCl 3 mol L −1 ) and platinum wire as working, reference and counter electrodes, respectively. DPASV measurements were performed in 0.1 mol L −1 ammonium acetate solution (pH 4.6) [28]. The experimental conditions for DPASV technique were: start potential = −1.1 V, end potential = 0.2 V, deposition potential = −1.1 V, deposition time = 120 s, amplitude = 0.05 V, modulation time = 0.04 s and scan rate = 20 mV s −1 .…”

Section: Reagents Equipment and Instrumental Parametersmentioning

confidence: 99%

Direct Determination of Zn, Cd, Pb and Cu in Wine by Differential Pulse Anodic Stripping Voltammetry

et al. 2019

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Metals in wine can originate from natural and anthropogenic sources and their concentrations have significant effects on wine proprieties as well in its conservation. In this work, direct and simultaneous determinations of Zn, Cd, Pb and Cu in wine samples were carried out by differential pulse anodic stripping voltammetry without any steps of previous pretreatment. The samples analyzed presented concentration levels from 4.64 to 69.3 µg L −1 of Zn, from 1.74 to 5.25 µg L −1 of Cd, from 4.57 to 17.9 µg L −1 of Pb and from 1.0 to 10.3 µg L −1 of Cu. Accuracy was evaluated with the standard addition method and recoveries ranged from 82.5 and 130.8% for Zn, from 85.7 to 107.0% for Cd, from 89.7 to 101.0% for Pb and from 81.4 to 105.9% for Cu. With the application of this method, it was possible to quantify the metals in a simple and easy way not requiring sample preparation or other approaches for the destruction of organic substances.

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Development of chitosan/Spirulina sp. blend films as biosorbents for Cr6+ and Pb2+ removal

Gerhardt

Farias

Moura

et al. 2020

International Journal of Biological Macromolecules

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Systematic evaluation of sample preparation method for simultaneous voltammetric determination of Zn, Cd, Pb, and Cu in macroalgae

Cited by 10 publications

References 32 publications

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

Carbon‐based materials applied to the development of chemically modified sensors: Trends to environmental applications**

Direct Determination of Zn, Cd, Pb and Cu in Wine by Differential Pulse Anodic Stripping Voltammetry

Development of chitosan/Spirulina sp. blend films as biosorbents for Cr6+ and Pb2+ removal

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