Photochemical vapor generation: a radical approach to analyte introduction for atomic spectrometry,Journal of Analytical Atomic Spectrometry

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Photochemical vapor generation: a radical approach to analyte introduction for atomic spectrometry
Journal of Analytical Atomic Spectrometry ( IF 3.1 ) Pub Date : 2017-10-06 00:00:00 , DOI: 10.1039/c7ja00285h
Ralph E. Sturgeon _{1,

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Affiliation

Photochemical vapor generation (PVG) is the newest subset of widely used vapor generation techniques to be coupled to atomic and mass spectrometries to provide enhanced analyte introduction efficiency. Improved detection power, minimization of potential spectral interferences and the promise of green chemistry serve as additional drivers. PVG has been successfully applied to the conventional suite of elements typically amenable to chemical vapor generation, such as As, Sb, Sn, Bi, Se, Te, Hg and Pb, as well as transition metals (Cd, Fe, Co, Ni and Os) and non-metals (I and Br). This tutorial provides an overview of developments and applications since its inception in 2003, including consideration of needed hardware (UV photochemical reactor and phase separator designs), reaction mechanisms and products, interferences, as well as benefits and short-comings. While significant advances have been made over the past decade in expanding the scope of elements amenable to PVG, the way forward demands elucidation of reaction mechanisms to support optimization, enhance prediction power and provide comprehension and control of potential interferences. In this connection, speculations on ultimate limitations, needed developments and future outlook are also presented. More applications to real-world samples are needed to sustain interest in the field and elicit further investment of research.

中文翻译：

光化学蒸气的产生：原子光谱法中引入分析物的一种根本方法

光化学蒸气发生（PVG）是广泛使用的蒸气发生技术的最新子集，可与原子和质谱联用，以提高分析物的引入效率。更高的检测能力，潜在光谱干扰的最小化以及绿色化学的前景成为了其他驱动因素。PVG已成功应用于通常适用于化学气相生成的常规元素组，例如As，Sb，Sn，Bi，Se，Te，Hg和Pb，以及过渡金属（Cd，Fe，Co，Ni和Ni Os）和非金属（I和Br）。本教程概述了自2003年成立以来的发展和应用，包括对所需硬件（UV光化学反应器和相分离器设计）的考虑，反应机理和产物，干扰，以及优点和缺点。尽管在过去十年中在扩大适用于PVG的元素范围方面取得了重大进展，但前进的道路要求阐明反应机制以支持优化，增强预测能力并提供对潜在干扰的理解和控制。在这方面，还提出了对最终局限性，所需发展和未来前景的推测。需要更多的应用到现实世界的样品，以保持对该领域的兴趣，并引发对研究的进一步投资。增强预测能力并提供对潜在干扰的理解和控制。在这方面，还提出了对最终局限性，所需发展和未来前景的推测。需要更多的应用到现实世界的样品，以保持对该领域的兴趣，并引发对研究的进一步投资。增强预测能力并提供对潜在干扰的理解和控制。在这方面，还提出了对最终局限性，所需发展和未来前景的推测。需要更多的应用到现实世界的样品，以保持对该领域的兴趣，并引发对研究的进一步投资。

更新日期：2017-10-06

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