Liquid-phase extraction combined with X-ray fluorescence spectrometry for the elemental determination

IF 5.4 2区化学 Q1 INSTRUMENTS & INSTRUMENTATION

Applied Spectroscopy Reviews Pub Date : 2022-08-24 DOI:10.1080/05704928.2022.2113537

Vanessa J. Ferreira, Fernanda B. S. Virgens, Laís N. Pires, F. Dias, V. Lemos, L. Teixeira

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Abstract

Abstract X-ray fluorescence spectrometry (XRF) has been widely used for multi-element determination in various samples. However, when trace level determination is required, separation and preconcentration procedures are often used as a step before detection to avoid or reduce interferences and to increase sensitivity. Liquid-phase extraction (LPE) is one of the most well-known and applied pretreatment techniques associated with atomic spectrometry due to its simplicity, speed, and ease of automation. A review of methods involving LPE combined with XRF is presented. Methods described in the literature are discussed, involving conventional LPE and the three main categories of liquid-phase microextraction (LPME): single-drop microextraction (SDME), dispersive liquid–liquid microextraction (DLLME), and hollow fiber liquid-phase microextraction (HF-LPME). Characteristics of the methods are presented, considering experimental aspects, analytical features, advantages, and disadvantages. In addition, trends in the association between LPME techniques and XRF are presented.

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液相萃取联合x射线荧光光谱法测定元素

摘要x射线荧光光谱法(XRF)已广泛应用于各种样品中的多元素测定。然而，当需要痕量水平测定时，分离和预浓缩程序通常用作检测前的步骤，以避免或减少干扰并提高灵敏度。液相萃取(LPE)由于其简单、快速和易于自动化，是与原子光谱法相关的最知名和应用最广泛的前处理技术之一。本文综述了LPE与XRF相结合的方法。讨论了文献中描述的方法，包括传统的LPE和液相微萃取(LPME)的三大类:单滴微萃取(SDME)、分散液液微萃取(DLLME)和中空纤维液相微萃取(HF-LPME)。从实验方面、分析特点、优缺点等方面介绍了这些方法的特点。此外，在LPME技术和XRF之间的关联趋势提出。

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来源期刊

Applied Spectroscopy Reviews 工程技术-光谱学

CiteScore

13.80

自引率

1.60%

发文量

审稿时长

1 months

期刊介绍： Applied Spectroscopy Reviews provides the latest information on the principles, methods, and applications of all the diverse branches of spectroscopy, from X-ray, infrared, Raman, atomic absorption, and ESR to microwave, mass, NQR, NMR, and ICP. This international, single-source journal presents discussions that relate physical concepts to chemical applications for chemists, physicists, and other scientists using spectroscopic techniques.