EDTA-Assisted MPT-MS for Trace Analysis of Heavy Metals in Fireworks

IF 1.9 3区 化学 Q3 BIOCHEMICAL RESEARCH METHODS Journal of Mass Spectrometry Pub Date : 2024-09-27 DOI:10.1002/jms.5093
Gaosheng Zhao, Yuliang Huang, Maolin Yang, Lifeng Liu, Bin Jia, Ping Cheng
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Abstract

A novel method was developed for the rapid detection of heavy metals in firework solutions with high sensitivity and minimal pretreatment by enriching them with ethylenediaminetetraacetic acid (EDTA) reagent and analyzing them using microwave plasma torch mass spectrometry (MPT-MS). Quantitative results showed that the limits of detection and quantification for heavy metals (Pb, Ba, Sr, and Ag) ranged from 0.05 to 0.25 and 0.38 to 0.71 μg·L−1, respectively. The linear dynamic ranges covered at least two orders of magnitude, with correlation coefficients exceeding 0.99. Fireworks from five regions in China were also analyzed quantitatively, detecting heavy metals including Pb, Ba, Sr, and Ag, with recovery rates ranging from 87.9% to 107.5%. Good separation between the firework samples from different regions was achieved by using element ratios and principal component analysis (PCA). These results from the preliminary study showed that the EDTA-assisted MPT-MS combined with PCA is a powerful tool for characterizing firework samples and tracing them back to their sources, which is valuable to effectively regulate and manage banned fireworks.

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EDTA 辅助 MPT-MS 用于烟花中重金属的痕量分析
通过使用乙二胺四乙酸(EDTA)试剂富集烟花溶液并使用微波等离子体炬质谱(MPT-MS)进行分析,建立了一种灵敏度高、前处理最少的快速检测烟花溶液中重金属的新方法。定量结果显示,重金属(铅、钡、锶和银)的检出限和定量限分别为 0.05 至 0.25 和 0.38 至 0.71 μg-L-1。线性动态范围至少覆盖两个数量级,相关系数超过 0.99。此外,还对中国五个地区的烟花进行了定量分析,检测出铅、钡、锶和银等重金属,回收率为 87.9% 至 107.5%。利用元素比率和主成分分析法(PCA)对不同地区的烟花样品进行了很好的分离。初步研究结果表明,EDTA 辅助 MPT-MS 与 PCA 结合使用,是分析烟花样品特征并追溯其来源的有力工具,对有效规范和管理违禁烟花具有重要价值。
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来源期刊
Journal of Mass Spectrometry
Journal of Mass Spectrometry 化学-光谱学
CiteScore
5.10
自引率
0.00%
发文量
84
审稿时长
1.5 months
期刊介绍: The Journal of Mass Spectrometry publishes papers on a broad range of topics of interest to scientists working in both fundamental and applied areas involving the study of gaseous ions. The aim of JMS is to serve the scientific community with information provided and arranged to help senior investigators to better stay abreast of new discoveries and studies in their own field, to make them aware of events and developments in associated fields, and to provide students and newcomers the basic tools with which to learn fundamental and applied aspects of mass spectrometry.
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