<br>环境中铊的测定：常规和先进技术及应用综述,Chemosphere

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环境中铊的测定：常规和先进技术及应用综述
Chemosphere ( IF 8.1 ) Pub Date : 2024-04-29 , DOI: 10.1016/j.chemosphere.2024.142201
Xiaoliu Huangfu ₁ , Yifan Zhang ₁ , Yunzhu Wang ₁ , Chengxue Ma ₂

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铊 (Tl) 是一种潜在的有毒元素，会带来重大的生态和环境风险。近年来，大量的Tl通过自然和人类活动释放到环境中，引起了越来越多的关注。这种有害元素和微量元素的测定对于控制其污染至关重要。本文总结了优化 Tl 检测技术的进展和进展，包括原子吸收光谱 (AAS)、伏安法、基于电感耦合等离子体 (ICP) 的方法、分光光度法和基于 X 射线的方法。此外，它还介绍了采样和预处理方法，例如薄膜扩散梯度 (DGT)、液-液萃取、固相萃取和浊点萃取。在这些技术中，ICP-质谱 (MS) 是 Tl 检测的首选，因为它在测定 Tl 及其物种和同位素组成方面具有高精度。同时，一些新材料、新试剂也被用于检测。讨论了新型工作电极材料和显色剂的应用。重点放在减少溶剂消耗和利用预处理技术，例如超声辅助工艺和功能化磁性颗粒。大多数检测是在水基体中进行的，同时总结了应用于固相的基于 X 射线的方法，这些方法提供了无损分析。这项工作提高了对 Tl 测定技术的理解，同时为寻求适当分析技术的研究人员提供了宝贵的资源。

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The determination of thallium in the environment: A review of conventional and advanced techniques and applications

Thallium (Tl) is a potential toxicity element that poses significant ecological and environmental risks. Recently, a substantial amount of Tl has been released into the environment through natural and human activities, which attracts increasing attention. The determination of this hazardous and trace element is crucial for controlling its pollution. This article summarizes the advancement and progress in optimizing Tl detection techniques, including atomic absorption spectroscopy (AAS), voltammetry, inductively coupled plasma (ICP)-based methods, spectrophotometry, and X-ray-based methods. Additionally, it introduces sampling and pretreatment methods such as diffusive gradients in thin films (DGT), liquid-liquid extraction, solid phase extraction, and cloud point extraction. Among these techniques, ICP-mass spectrometry (MS) is the preferred choice for Tl detection due to its high precision in determining Tl as well as its species and isotopic composition. Meanwhile, some new materials and agents are employed in detection. The application of novel work electrode materials and chromogenic agents is discussed. Emphasis is placed on reducing solvent consumption and utilizing pretreatment techniques such as ultrasound-assisted processes and functionalized magnetic particles. Most detection is performed in aqueous matrices, while X-ray-based methods applied to solid phases are summarized which provide non-destructive analysis. This work improves the understanding of Tl determination technology while serving as a valuable resource for researchers seeking appropriate analytical techniques.

更新日期：2024-04-29

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