2D nucleation in the electroreduction of 8-quinolinecarboxylic acid, and the herbicide quinmerac on mercury electrodes

Pintado, Sara; Gómez, Lorenzo Martínez; Rodríguez‐Amaro, Rafael; Montoya, Mercedes Ruiz; Mellado, José Miguel Rodríguez

doi:10.1016/j.electacta.2011.10.012

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…As an alternative approach, an electrochemical method has been used. At pH > pK and at potentials below 1 V, triazines are not electroactive [13e15], but Cu(II) shows in cyclic voltammetry (CV) a reduction signal, in the direct scan, and an oxidation wave, in the reverse scan [16]. So, the strategy used in this case was the addition of variable concentrations of ligand to a fixed concentration of metal ion and monitoring the change in the oxidationereduction signals because of the formation of the complex.…”

Section: Triazine Herbicidesmentioning

confidence: 99%

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Moreno¹,

Rodríguez‐Amaro²,

Mellado³

et al. 2018

Comptes Rendus. Chimie

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Imidazolinone and triazine herbicides are used in many countries and may have a great impact on metal biocycles in soil. This article deals with the dynamics of imidazolinone and triazine herbicides in soils related to the formation of complexes with Cu(II) ions, which can be very stable. The stability constants of the complexes formed by five imidazolinone herbicides and ten triazine herbicides with Cu(II) ions are determined by means of fast, easy, and inexpensive measurements performed by ultravioletevisible spectroscopy, for imidazolinones, and voltammetry (cyclic and differential pulse), for triazines. Because of the occurrence of dissociation reactions, the determinations were performed at three pH values for imidazolinones and at one pH value for triazines. In aqueous solutions of 5 < pH < 10 (corresponding to the majority of soils of agricultural use), the herbicides form very stable complexes with the Cu(II) ions, the complexes being integrated by two ligands (herbicides) and one copper ion. In conclusion, crops treated with such herbicides in conjunction with Cu(II) salts experience a decrease in its persistence and effectiveness. In addition, the herbicides and the copper ions may pass to the phreatic layer of the soil, increasing the chance of pollution.

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Section: Triazine Herbicidesmentioning

confidence: 99%

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Moreno¹,

Rodríguez‐Amaro²,

Mellado³

et al. 2018

Comptes Rendus. Chimie

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Electroreduction mechanism of 8-quinolinecarboxylic acid and the herbicide quinmerac on mercury electrodes

Pintado

Montoya

Mellado

2012

Electrochimica Acta

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High-performance lithium–sulfur batteries enabled by regulating Li₂S deposition

Lin

Huang

Liu

et al. 2021

Phys. Chem. Chem. Phys.

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2D nucleation in the electroreduction of 8-quinolinecarboxylic acid, and the herbicide quinmerac on mercury electrodes

Cited by 4 publications

References 26 publications

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Electroreduction mechanism of 8-quinolinecarboxylic acid and the herbicide quinmerac on mercury electrodes

High-performance lithium–sulfur batteries enabled by regulating Li₂S deposition

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2D nucleation in the electroreduction of 8-quinolinecarboxylic acid, and the herbicide quinmerac on mercury electrodes

Cited by 4 publications

References 26 publications

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Imidazolinone and triazine herbicides in soils in relation to the complexes formed with Cu(II) ions

Electroreduction mechanism of 8-quinolinecarboxylic acid and the herbicide quinmerac on mercury electrodes

High-performance lithium–sulfur batteries enabled by regulating Li2S deposition

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High-performance lithium–sulfur batteries enabled by regulating Li₂S deposition