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Updated: Jul 2, 2025

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通过全频谱激光诱导分解光谱学对不钢中微量元素进行多元件同时定量分析

Qing Ma¹, Ziyuan Liu¹, Tingsong Zhang¹

¹Zhejiang A&F University, College of Opto-Electro-Mechanical Engineering, Hangzhou, 311300, China.

|February 17, 2024

概括

这项研究引入了一种新的激光诱导分解光谱 (LIBS) 方法,用于同时进行多元元素分析. 该方法使用整个光谱来提高检测不钢中微量金属的准确性.

科学领域:

分析化学分析化学
频谱学是一种光谱学.
材料科学材料科学材料科学

背景情况:

激光诱导分解光谱 (LIBS) 对于快速,同时检测多元素微量金属非常有价值.
传统的LIBS定量模型通常使用经验或基于机器学习的特征选择.
矩阵效应和自我吸收可以挑战LIBS的定量准确性.

研究的目的:

开发一种新的,高效的LIBS定量分析方法,使用整个频谱.
通过减轻矩阵效应和自我吸收来改善同时进行多元件分析.
为量化模型不确定性引入一种认知错误术语.

主要方法:

开发了一个基于整个LIBS频谱的同时多元量化分析模型.
应用了对数谱处理,并结合了认知错误术语.
在多元模型中利用共享的特征和参数来减少矩阵效应.

主要成果:

对于不钢中微量元素Mn,Mo,Cr和Cu的高预测性能 (R2>0.98) 已实现.
该模型有效地减轻了矩阵效应和自我吸收.
证明了同时进行多元元素分析的显著预测准确性.

结论:

新的LIBS方法为定量微量元素分析提供了更高的效率和准确性.
该方法为多任务LIBS分析提供了可靠的数据处理技术.
这些发现显示出在定量分析中推进LIBS应用的巨大潜力.

关键词:

提供全频谱的电波.在LIBS中,LIBS是指LIBS.多元件定量分析多元件定量分析不钢的不钢是什么不确定性量化不确定性的量化.

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