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Materials interacting with inorganic selenium from the perspective of electrochemical sensing
Analyst ( IF 3.6 ) Pub Date : 2021-08-30 , DOI: 10.1039/d1an00677k Jaroslav Filip 1 , Štěpán Vinter 1 , Erika Čechová 1 , Jitka Sotolářová 1
Analyst ( IF 3.6 ) Pub Date : 2021-08-30 , DOI: 10.1039/d1an00677k Jaroslav Filip 1 , Štěpán Vinter 1 , Erika Čechová 1 , Jitka Sotolářová 1
Affiliation
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Inorganic selenium, the most common form of harmful selenium in the environment, can be determined using electrochemical sensors, which are compact, fast, reliable and easy-to-operate devices. Despite progress in this area, there is still significant room for developing high-performance selenium electrochemical sensors. To achieve this, one should take into account (i) the electrochemical process that selenium undergoes on the electrode; (ii) the valence state of selenium species in the sample and (iii) modification of the sensor surface by a material with high affinity to selenium. The goal of this review is to provide a knowledge base for these issues. After the Introduction section, mechanisms and principles of the electrochemical reduction of selenium are introduced, followed by a section introducing the modification of electrodes with materials interacting with selenium and a section dedicated to speciation methods, including the reduction of non-detectable Se(VI) to detectable Se(IV). In the following sections, the main types of materials (metallic, polymers, hybrid (nano)materials…) interacting with inorganic selenium (mostly absorbents) are reviewed to show the diversity of properties that may be endowed to sensors if the materials were to be used for the modification of electrodes. These features for the main material categories are outlined in the conclusion section, where it is stated that the engineered polymers may be the most promising modifiers.
中文翻译：
从电化学传感的角度看材料与无机硒的相互作用
无机硒是环境中最常见的有害硒形式，可以使用电化学传感器进行测定，这些传感器是紧凑、快速、可靠且易于操作的设备。尽管在该领域取得了进展，但开发高性能硒电化学传感器仍有很大的空间。为实现这一目标，应考虑 (i) 硒在电极上所经历的电化学过程；(ii) 样品中硒物质的价态和 (iii) 通过对硒具有高亲和力的材料对传感器表面的修饰。本次审查的目的是为这些问题提供一个知识库。在引言部分之后，介绍了硒电化学还原的机理和原理，VI ) 至可检测的 Se( IV )。在以下部分中，将回顾与无机硒（主要是吸收剂）相互作用的主要材料类型（金属、聚合物、混合（纳米）材料……）用于电极的修饰。结论部分概述了主要材料类别的这些特征，其中指出工程聚合物可能是最有前途的改性剂。
更新日期：2021-10-01
中文翻译：
从电化学传感的角度看材料与无机硒的相互作用
无机硒是环境中最常见的有害硒形式，可以使用电化学传感器进行测定，这些传感器是紧凑、快速、可靠且易于操作的设备。尽管在该领域取得了进展，但开发高性能硒电化学传感器仍有很大的空间。为实现这一目标，应考虑 (i) 硒在电极上所经历的电化学过程；(ii) 样品中硒物质的价态和 (iii) 通过对硒具有高亲和力的材料对传感器表面的修饰。本次审查的目的是为这些问题提供一个知识库。在引言部分之后，介绍了硒电化学还原的机理和原理，VI ) 至可检测的 Se( IV )。在以下部分中，将回顾与无机硒（主要是吸收剂）相互作用的主要材料类型（金属、聚合物、混合（纳米）材料……）用于电极的修饰。结论部分概述了主要材料类别的这些特征，其中指出工程聚合物可能是最有前途的改性剂。
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