The use of copper solid amalgam electrodes for determination of the pesticide thiram

Nováková, Kateřina; Navrátil, Tomáš; Dytrtová, Jana Jaklová; Chýlková, Jaromíra

doi:10.1007/s10008-013-2035-1

Cited by 34 publications

(10 citation statements)

References 72 publications

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“…Nevertheless, cholesterol reduces the width of 18 carbon chain bilayers below the phase transition temperature as the long phospholipid chains must deform or twist to confirm the significantly shorter cholesterol molecule. However, the phosphatidylcholine head group conformation is not modified by the addition of cholesterol to the bilayer .…”

Section: Models Of Biological Membranes – Planar Lipid Bilayermentioning

confidence: 98%

“…On the one hand, they have been employed in monitoring of elements, complexes or more complicated compounds, present on both sides of cell membranes (i. e., in intracellular and extracellular spaces), which are transported across them (e. g., Cd 2+ , Pb 2+ , Cu 2+ ) or which affect the transporting processes across them (phytochelatins, low molecular weight organic acids (e. g., oxalic, citric, and malic) ). For these purposes, voltammetric techniques (e. g., cyclic voltammetry and differential pulse voltammetry) and differential potentiometric stripping analysis (DPSA, chronopotentiometry) have been utilized.…”

Section: Introductionmentioning

confidence: 99%

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Model Biological Membranes and Possibilities of Application of Electrochemical Impedance Spectroscopy for their Characterization

et al. 2017

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Biological membranes are essential parts of living systems. They represent an interface between intracellular and extracellular space. Depending on their structure, they often perform very complex functions and play an important role in the transport of both charged and uncharged particles in any organism. Structure of the biological membranes, which play very important role in electrochemical processes inside living organisms, is very complicated and still not precisely defined and explained. Model lipid membranes are used to gain detail information about properties of real biological membranes and about associated electrochemical processes. Electrochemistry, especially electrochemical impedance spectroscopy (EIS), can play a useful role in the characterization of properties of model lipid membranes (planar and supported lipid bilayers, tethered lipid membranes, liposomes, etc.). This review is focused on model biological membranes and the possibilities and limitations of electrochemical methods and namely of EIS in this field.

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Section: Models Of Biological Membranes – Planar Lipid Bilayermentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Model Biological Membranes and Possibilities of Application of Electrochemical Impedance Spectroscopy for their Characterization

et al. 2017

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“…All of the identified studies made use of cathodic stripping voltammetry to detect and quantify their investigated dithiocarbamates, preceded by an adsorptive preconcentration. Several of these reports explicitly cited the reduction of thiol moieties as the basis for signal generation at these electrodes [ 37 , 44 , 49 ]. A similar catalytic effect using copper–mercury amalgam electrodes was reported for monitoring of thiram [ 49 ].…”

Section: Advances In Dtfs Detectionmentioning

confidence: 99%

Advances in the Detection of Dithiocarbamate Fungicides: Opportunities for Biosensors

et al. 2020

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Dithiocarbamate fungicides (DTFs) are widely used to control various fungal diseases in crops and ornamental plants. Maximum residual limits in the order of ppb-ppm are currently imposed by legislation to prevent toxicity problems associated with excessive use of DTFs. The specific analytical determination of DTFs is complicated by their low solubility in water and organic solvents. This review summarizes the current analytical procedures used for the analysis of DTF, including chromatography, spectroscopy, and sensor-based methods and discusses the challenges related to selectivity, sensitivity, and sample preparation. Biosensors based on enzymatic inhibition demonstrated potential as analytical tools for DTFs and warrant further research, considering novel enzymes from extremophilic sources. Meanwhile, Raman spectroscopy and various sensors appear very promising, provided the selectivity issues are solved.

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“…For example, Jelen et al used the copper solid amalgam electrode for detection of DNA at subnanomolar concentrations in the presence of copper [ 36 ]. Further, a similar type of electrode was used for detection of fungicide [ 37 ], herbicide [ 38 ], metallothionein [ 4 ], and phytochelatins [ 39 ]. The amalgam electrodes (Ag/Hg, Pt/Hg, Au/Hg, Ir/Hg, and Cu/Hg) differ from each other by the range of working potentials as shown here [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Amalgam Electrode-Based Electrochemical Detector for On-Site Direct Determination of Cadmium(II) and Lead(II) from Soils

Nejdl

Kynický

Brtnický

et al. 2017

Sensors

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Toxic metal contamination of the environment is a global issue. In this paper, we present a low-cost and rapid production of amalgam electrodes used for determination of Cd(II) and Pb(II) in environmental samples (soils and wastewaters) by on-site analysis using difference pulse voltammetry. Changes in the electrochemical signals were recorded with a miniaturized potentiostat (width: 80 mm, depth: 54 mm, height: 23 mm) and a portable computer. The limit of detection (LOD) was calculated for the geometric surface of the working electrode 15 mm2 that can be varied as required for analysis. The LODs were 80 ng·mL−1 for Cd(II) and 50 ng·mL−1 for Pb(II), relative standard deviation, RSD ≤ 8% (n = 3). The area of interest (Dolni Rozinka, Czech Republic) was selected because there is a deposit of uranium ore and extreme anthropogenic activity. Environmental samples were taken directly on-site and immediately analysed. Duration of a single analysis was approximately two minutes. The average concentrations of Cd(II) and Pb(II) in this area were below the global average. The obtained values were verified (correlated) by standard electrochemical methods based on hanging drop electrodes and were in good agreement. The advantages of this method are its cost and time effectivity (approximately two minutes per one sample) with direct analysis of turbid samples (soil leach) in a 2 M HNO3 environment. This type of sample cannot be analyzed using the classical analytical methods without pretreatment.

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The use of copper solid amalgam electrodes for determination of the pesticide thiram

Cited by 34 publications

References 72 publications

Model Biological Membranes and Possibilities of Application of Electrochemical Impedance Spectroscopy for their Characterization

Model Biological Membranes and Possibilities of Application of Electrochemical Impedance Spectroscopy for their Characterization

Advances in the Detection of Dithiocarbamate Fungicides: Opportunities for Biosensors

Amalgam Electrode-Based Electrochemical Detector for On-Site Direct Determination of Cadmium(II) and Lead(II) from Soils

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