Facile and fast elemental analysis using glass fiber filter by X-ray fluorescence

IF 3.2 2区 化学 Q1 SPECTROSCOPY Spectrochimica Acta Part B: Atomic Spectroscopy Pub Date : 2024-05-22 DOI:10.1016/j.sab.2024.106951
Xiaomei Li , Xiao Zhang , Jun Qin , Yu Zhang , Xiaole Chen , Jianfeng Jia , Feng Feng , Haishun Wu , Yunfeng Bai
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Abstract

Analysis of elements in liquid samples via X-ray fluorescence (XRF) faces challenges due to diverse matrix effects. To address this, the use of glass fiber filters (GFFs) as effective substrates for XRF analysis was explored. The matrix compositions of various commercial GFFs were comprehensively analyzed and compared to assess their applicability in liquid analysis. Most GFFs do not contain heavy elements, exhibit highly consistent filter weights, and have matrix element contents with relative standard deviations (RSDs) below 3%, which are ideal for detecting heavy elements. GFFs were also demonstrated to have superior analytical sensitivity compared to alternative filters. Optimal analytical performance can be achieved by utilizing a 30 mm sample holder, dripping 50 μL of the sample on the uniformly pressed GFFs, and drying it via infrared heating. Most heavy elements showed wide linear concentration ranges spanning over three orders of magnitudes and limits of detection (LOD) lower than mg/L. The results of standard addition and recoveries in natural lake water were promising. Furthermore, GFFs proved capable of verifying the composition and quality of particulate materials. The used GFFs can also be easily regenerated through acid washing for reuse. Therefore, GFFs are optimal XRF substrates for analyzing liquid samples containing heavy metal ions and materials.

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利用玻璃纤维过滤器通过 X 射线荧光进行简便快速的元素分析
由于基质效应的多样性,通过 X 射线荧光 (XRF) 分析液体样品中的元素面临着挑战。为了解决这个问题,我们探索了使用玻璃纤维过滤器(GFF)作为 XRF 分析的有效基质。对各种商用玻璃纤维过滤器的基质成分进行了全面分析和比较,以评估它们在液体分析中的适用性。大多数 GFF 不含重元素,过滤重量高度一致,基质元素含量相对标准偏差 (RSD) 低于 3%,非常适合检测重元素。与其他过滤器相比,GFF 还具有更高的分析灵敏度。使用 30 毫米的样品支架,将 50 μL 样品滴在均匀压制的 GFF 上,然后通过红外线加热干燥,即可获得最佳分析性能。大多数重元素的线性浓度范围超过三个数量级,检测限(LOD)低于毫克/升。在天然湖水中的标准添加和回收率结果良好。此外,GFF 还能验证颗粒材料的成分和质量。使用过的 GFF 还可以通过酸洗轻松再生,以便重复使用。因此,GFF 是分析含有重金属离子和材料的液体样品的最佳 XRF 基质。
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来源期刊
CiteScore
6.10
自引率
12.10%
发文量
173
审稿时长
81 days
期刊介绍: Spectrochimica Acta Part B: Atomic Spectroscopy, is intended for the rapid publication of both original work and reviews in the following fields: Atomic Emission (AES), Atomic Absorption (AAS) and Atomic Fluorescence (AFS) spectroscopy; Mass Spectrometry (MS) for inorganic analysis covering Spark Source (SS-MS), Inductively Coupled Plasma (ICP-MS), Glow Discharge (GD-MS), and Secondary Ion Mass Spectrometry (SIMS). Laser induced atomic spectroscopy for inorganic analysis, including non-linear optical laser spectroscopy, covering Laser Enhanced Ionization (LEI), Laser Induced Fluorescence (LIF), Resonance Ionization Spectroscopy (RIS) and Resonance Ionization Mass Spectrometry (RIMS); Laser Induced Breakdown Spectroscopy (LIBS); Cavity Ringdown Spectroscopy (CRDS), Laser Ablation Inductively Coupled Plasma Atomic Emission Spectroscopy (LA-ICP-AES) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). X-ray spectrometry, X-ray Optics and Microanalysis, including X-ray fluorescence spectrometry (XRF) and related techniques, in particular Total-reflection X-ray Fluorescence Spectrometry (TXRF), and Synchrotron Radiation-excited Total reflection XRF (SR-TXRF). Manuscripts dealing with (i) fundamentals, (ii) methodology development, (iii)instrumentation, and (iv) applications, can be submitted for publication.
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