Green electrochemical sensors based on boron-doped diamond and silver amalgam for sensitive voltammetric determination of herbicide metamitron

Šelešovská, Renáta; Janíková, Lenka; Chýlková, Jaromíra

doi:10.1007/s00706-014-1372-9

Cited by 15 publications

(8 citation statements)

References 51 publications

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“…We suppose that differences in toxicity of individual oils in model samples were caused by the differences in physical and chemical parameters (Tab. 1), but also by their biological degradability, as presented in the monograph [30]. Determined inhibition corresponds in the following way: biodegradability of mineral oil of 92.0 % with EL of 29.40 %; vegetable oil with biodegradability of 61.9 % with of 38.56 % and mineral (petroleum) oil with the lowest determined biodegradability of 33.0 % and inhibition value of 44.15 %.…”

Section: Assessment Of the Preliminary Test Of The Growth Inhibition mentioning

confidence: 96%

“…Decrease of oxygen at the end of the test was of 9.3 % in control and in the interval of 14.3 -24.7 % in samples. Forth et al [30] and Redmann et al [31] tested toxicity of petroleum (mineral) oils in water samples using the standard aquatic toxicity tests and observed changes in the size of oil droplets, too. At the beginning of the test the average droplet size was 5-10 μm (a few were > 30 μm) and after 96 hours of testing, that size was reduced to 3-5 μm.…”

Section: Assessment Of the Preliminary Test Of The Growth Inhibition mentioning

confidence: 99%

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Analysis of the hydraulic oil to drive band sawmill

Krilek

Kovach

Kuvik

et al. 2019

SBUNFU

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Transport and material handling is a sum of technological processes in the wood-processing industry. Hydraulic drives are one of the drive options used as a basic part of the transport – handling machines. Contamination control involves preventing contaminants from entering a hydraulic system and placing filters in strategic locations throughout the system to trap any contaminants to find their way into the fluid. But for critical equipment, a successful contamination control program must also include regular assessment of the hydraulic fluid cleanliness. It must be often done every two to six months or after every 500 or 1,000 hours of operation, depending on the equipment duty cycle, operating environment, and how critical it is to overall operation. Pressure forces in hydraulic drives are transferred to hydraulically-operated devices which also serve to lubricate the elements, displace and remove heat from the system. To increase the service life of hydraulic drives, hydraulic oil must meet individual physical characteristics. To ensure reliability, timely diagnosis of hydraulic oil is required. Some experts also recommend that fluid to be tested immediately after any maintenance event that exposes the hydraulic system to the external environment. This could occur when a hose or other component is replaced or fluid is added to the reservoir. Fluid replenishment can be particularly troublesome because new fluid is notorious for being dirty – often from improper storage and handling practices. The article deals with the methodology of measuring the basic physical properties of hydraulic oil by the respective diagnostic devices directly on the hydraulic drive of the bend saw in the full operation of the machine. The methodology suggested enables making decisions for improvement of the hydraulic oil state.

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Section: Assessment Of the Preliminary Test Of The Growth Inhibition mentioning

confidence: 96%

Section: Assessment Of the Preliminary Test Of The Growth Inhibition mentioning

confidence: 99%

Analysis of the hydraulic oil to drive band sawmill

Krilek

Kovach

Kuvik

et al. 2019

SBUNFU

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“…The main advantages of BDDE are wide usable potential window in anodic as well as in cathodic area, low capacitive current, low noise, stable and repeatable current response, and minimal risk of passivation due to the low adsorption . BDDE is most commonly used for determination of organic compounds by monitoring of the appropriate oxidation reactions .…”

Section: Introductionmentioning

confidence: 99%

Oxidation Behavior of Insecticide Azoxystrobin and its Voltammetric Determination Using Boron‐doped Diamond Electrode

et al. 2019

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Electrochemical oxidation of azoxystrobin, a systemic fungicide commonly used in agriculture to protect a wide variety of crops, was investigated using cyclic voltammetry with a boron‐doped diamond electrode (BDDE) in aqueous buffer solutions. Two pH independent irreversible anodic current peaks controlled mostly by diffusion were observed in wide pH range (2 to 12) at potentials +1600 mV and +2150 mV vs. saturated silver‐silver chloride electrode. Mechanism of the electrochemical oxidation was proposed and supported with high performance liquid chromatography/mass spectrometry analysis of azoxystrobin solutions electrolyzed on carbon fiber brush electrode. The main product of the first two‐electron oxidation step was identified as methyl 2‐(2‐{[6‐(2‐cyanophenoxy)pyrimidin‐4‐yl]oxy}phenyl)‐2‐hydroxy‐3‐oxopropanoate. An analytical method for the determination of azoxystrobin in water samples and pesticide preparation by differential pulse voltammetry with BDDE was developed. The method provides a wide linear dynamic range (3.0×10−7 to 2.0×10−4 mol L−1) with limit of detection 8×10−8 mol L−1. Accuracy of the method was evaluated by the addition and recovery method with recoveries ranging from 96.0 to 105.8 %. Interference study proved sufficient selectivity of the developed voltammetric method for the azoxystrobin determination in presence of azole fungicides as well as pesticides used to prevent the same crops.

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“…Application of this electrode material in electroanalysis especially of organic compounds has been widely described, e.g., in [44][45][46][47]. Pesticides and their residues are also a large group of substances studied with BDDE, and a number of the papers have been already published on this topic [39,[48][49][50][51].…”

mentioning

confidence: 99%

“…The AgSAE was used up to now for many various analytical applications in determination of inorganic and organic compounds, as well as in the analysis of peptides and DNA [19][20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Various pesticides were already analyzed with different types of amalgam electrodes [35][36][37][38][39][40][41]. BDDE was the second type of solid electrodes investigated in the presented paper.…”

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confidence: 99%

Sensitive voltammetric determination of herbicide terbutryn using solid electrodes based on silver amalgam and boron-doped diamond

et al. 2015

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The applicability of the mercury meniscus modified and polished silver solid amalgam electrode (m-, p-AgSAE) and boron-doped diamond electrode (BDDE) has been investigated for voltammetric analysis of herbicide terbutryn. Cyclic voltammetry and direct current voltammetry has been used for study of the voltammetric behavior of the analyzed substance depending on pH of supporting electrolyte and scan rate. Differential pulse voltammetry under the optimized experimental conditions has been applied for terbutryn determination using all tested electrodes with the limits of detection 2.9 9 10 -8 mol dm -3 (m-AgSAE), 4.3 9 10 -9 mol dm -3 (p-AgSAE), and 1.8 9 10 -7 mol dm -3 (BDDE), respectively. Calculated values of relative standard deviations of repeated determinations (n = 5) in various concentration levels of terbutryn did not exceed 5 % for either of the tested electrodes. Finally, the developed methods have been successfully used in the analysis of the model samples. The obtained results were compared also with those achieved using hanging mercury drop electrode. Graphical abstract-900

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Green electrochemical sensors based on boron-doped diamond and silver amalgam for sensitive voltammetric determination of herbicide metamitron

Cited by 15 publications

References 51 publications

Analysis of the hydraulic oil to drive band sawmill

Analysis of the hydraulic oil to drive band sawmill

Oxidation Behavior of Insecticide Azoxystrobin and its Voltammetric Determination Using Boron‐doped Diamond Electrode

Sensitive voltammetric determination of herbicide terbutryn using solid electrodes based on silver amalgam and boron-doped diamond

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