激光诱导击穿原子光谱在土壤分析中的应用
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国家重点研发计划项目(2016YFD0200302)和国家自然科学基金项目(41977026,41671238)资助


Application of Laser-Induced Breakdown Atomic Spectroscopy in Soil Analysis
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Supported by the National Key Research and Development Program of China (No. 2016YFD0200302) and the National Natural Science Foundation of China (Nos. 41977026 and 41671238)

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    摘要:

    土壤分析是土壤学研究及应用的前提和基础,传统土壤化学分析方法逐渐不能适应现代土壤学海量信息数据快速获取的需求。激光诱导击穿光谱作为一种全新的、反映土壤组成元素原子信息的光谱技术,其无需对样品进行复杂前处理,可实现原位、快速、多元素连续在线检测,每条光谱记录土壤样本独一无二的特征,可以视为土壤“指纹”,成为现代土壤分析的有效技术之一。首先介绍和分析了激光诱导击穿原子光谱的原理、光谱获取的主要影响因素、光谱数据处理的化学计量学方法等;然后阐述和梳理了基于激光诱导击穿光谱技术在土壤分析方面的应用成果和进展,包括土壤鉴定、土壤养分评估、土壤重金属测定、微观/介观尺度土壤原位表征等;最后讨论和总结了激光诱导击穿光谱技术在土壤分析中所面临的挑战及其应用展望。

    Abstract:

    Soil analysis is the tool for understanding the soil. However, the conventional chemical analysis methods have been difficult to meet the requirements of mass information deprived from modern soil science. Laser-induced breakdown spectroscopy (LIBS) is one of the novel tools which reflects the elements atomic peaks in the soil with the advantages of less pre-processing, rapid, in situ, real-time and multielement monitoring. Moreover, each spectrum was recognized as a fingerprint of soil sample due to its unique characteristic. The current study aimed to provide a critical review of LIBS in soil analytical studies. Firstly, the principle of LIBS, the main factors in spectral recording and the chemometrics methods for spectra processing were introduced; then the applications in qualitative and quantitative soil analysis during the last decade were elaborated. Some of the soil analysis recorded with LIBS include soil identification, prediction of soil nutrients; soil heavy elements detection, and soil elements distribution studies at nano- and mesoscale. Lastly, the main challenges of the LIBS techniques in soil analysis were discussed and we highlighted the prospects and application of LIBS in future research.

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马菲,周健民,杜昌文.激光诱导击穿原子光谱在土壤分析中的应用[J].土壤学报,2022,59(3):642-653. DOI:10.11766/trxb202012100679 MA Fei, ZHOU Jianmin, DU Changwen. Application of Laser-Induced Breakdown Atomic Spectroscopy in Soil Analysis[J]. Acta Pedologica Sinica,2022,59(3):642-653.

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  • 收稿日期:2020-12-10
  • 最后修改日期:2021-06-21
  • 录用日期:2021-07-13
  • 在线发布日期: 2021-07-16
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