Fast determination of rutin-metal binding constants: A way to metal detection at the environment

Q2 Engineering Engineering in Agriculture, Environment and Food Pub Date : 2019-10-01 DOI:10.1016/j.eaef.2019.11.005

Camila de Moraes Ribeiro Dos Santos, Bruna Terezinha Antunes De Jesus, Marcelo Eduardo Cordeiro, Keller Paulo Nicolini, Jaqueline Nicolini

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Abstract

An approach was developed to evaluate the mechanism involved, based on the interaction of rutin with an excess of metal chloride (magnesium, nickel or aluminum). It was found that the binding constants increased in the following order: 2.57 ± 0.23 × 10⁴ L mol⁻¹ for magnesium (II), 5.61 ± 0.45 × 10⁷ L mol⁻¹ for nickel (II) and 3.46 ± 0.16 × 10⁹ L mol⁻¹ for aluminum (III). The stoichiometric ratios (metal:rutin) were 1:1 for rutin and magnesium (II), 2:3 for rutin and nickel (II) and 1:2 for rutin and aluminum (III), determined by titration. This strategy allows the detection of aluminum ions in the presence of calcium, potassium, nickel and magnesium ions, demonstrating that this method provides a promising cationic sensor. So, these results open up a perspective for the study of the interaction mechanism of rutin and for the development of materials capable of capturing metal ions toxic through the construction of efficient bioinorganic systems.

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快速测定芦丁-金属结合常数:一种环境金属检测方法

基于芦丁与过量氯金属(镁、镍或铝)的相互作用，开发了一种方法来评估所涉及的机制。发现绑定常量增加按照以下顺序: 2.57±0.23  × 104 L 摩尔−1镁(II), 5.61 ±0.45  × 107 L 摩尔−1 镍(II)和3.46±0.16  × 109 L 摩尔−1铝(III),化学计量比(金属:芦丁)1:1芦丁和镁(II), 2:3芦丁和镍(II)和1:2芦丁和铝(III),由滴定。该策略允许在钙、钾、镍和镁离子存在的情况下检测铝离子，表明该方法提供了一种有前途的阳离子传感器。因此，这些结果为研究芦丁的相互作用机制以及通过构建高效的生物无机系统开发能够捕获有毒金属离子的材料开辟了一个新的视角。

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来源期刊

Engineering in Agriculture, Environment and Food Engineering-Industrial and Manufacturing Engineering

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期刊介绍： Engineering in Agriculture, Environment and Food (EAEF) is devoted to the advancement and dissemination of scientific and technical knowledge concerning agricultural machinery, tillage, terramechanics, precision farming, agricultural instrumentation, sensors, bio-robotics, systems automation, processing of agricultural products and foods, quality evaluation and food safety, waste treatment and management, environmental control, energy utilization agricultural systems engineering, bio-informatics, computer simulation, computational mechanics, farm work systems and mechanized cropping. It is an international English E-journal published and distributed by the Asian Agricultural and Biological Engineering Association (AABEA). Authors should submit the manuscript file written by MS Word through a web site. The manuscript must be approved by the author''s organization prior to submission if required. Contact the societies which you belong to, if you have any question on manuscript submission or on the Journal EAEF.