The parameter optimization of lasers' energy ratio of the double-pulse laser induced breakdown spectrometry for heavy metal elements in the soil

Chen, Guan-Yu; Yang, Gye Mo; Ling, Zhenbao; Yang, Yihan; Zhan, Yizhe; Jin, Xueying

doi:10.1039/d1ay00237f

Cited by 11 publications

(2 citation statements)

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“…The superior S/N obtained for C, Fe, Mg and K in a test soil meant that use of the 1064 nm laser was recommended. The importance of optimising the energy ratio and inter-pulse delay time in DP-LIBS was demonstrated 171 and the enhancement in emission line intensity, and hence sensitivity, that can be achieved by plasma spatial connement (discussed in last year's ASU 1 ) was conrmed. 172 The benecial effects of using a heated target in soil analysis were demonstrated 173 for the rst time.…”

Section: Instrumental Analysismentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2022

J. Anal. At. Spectrom.

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Section: Instrumental Analysismentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2022

J. Anal. At. Spectrom.

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show abstract

“…However, the detection of potentially toxic metals in soil by LIBS technology is currently performed in a laboratory after drying and pressing the sample; the effect of soil moisture is not considered. Thus, LIBS is not suitable for the rapid detection of potentially toxic metals in wet soil samples in the field due to the long pre‐treatment time (Badday et al, 2015; G. Chen et al, 2021; Sun et al, 2019; Yu et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Establishment and evaluation of a quantitative analysis model for potentially toxic metals in wet soil samples by LIBS

Han

Tan

et al. 2022

European J Soil Science

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Fast on‐site detection of potentially toxic metals in soils is crucial for soil remediation and contamination monitoring. The moisture in soils is a challenge for quantitative analysis of potentially toxic metals. Here, we used laser‐induced breakdown spectroscopy (LIBS) and partial least squares regression (PLSR) for fast on‐site quantitative analysis of potentially toxic metals in wet soil samples. The model offered direct measurement of the moisture content in soil samples: the coefficient of determination (R2) value and the root‐mean‐square error of prediction (RMSEP) of predicted moisture content were 0.98% and 1.3%, respectively. The correlation between laser ablation factor and moisture content of the samples was determined by analysing the influence of sample moisture content on laser ablation. Quantitative analysis of wet soil samples based on ablation factor was established with an R2 of 0.97. Potentially toxic elemental Cu and Cr in sample 4# were verified by the quantitative analysis model through weighing and direct measurement. The relative error of concentration was within 10%, and the accuracy was improved by over 80%. The preliminary results show that the quantitative analysis model of potentially toxic metals in wet soil samples based on LIBS technology can detect potentially toxic metals in wet soil samples quickly and accurately on‐site. This has important guiding significance for real‐time and on‐site monitoring of contaminated soils.Highlights Fast on‐site quantitative analysis of potentially toxic metals in wet soil samples Quantitative analysis of wet soil samples based on ablation factor was established The relative error of concentration was within 10%, and the accuracy was improved by over 80% The model can detect potentially toxic metals in wet soil samples quickly and accurately on‐site

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LIBS in agriculture: A review focusing on revealing nutritional and toxic elements in soil, water, and crops

Ren

Zhao

2022

Computers and Electronics in Agriculture

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The parameter optimization of lasers' energy ratio of the double-pulse laser induced breakdown spectrometry for heavy metal elements in the soil

Abstract: Laser-induced breakdown spectroscopy (LIBS) is a rapid, no-sample preparation, remote detection method that has been applied widely in the area of heavy metal detection in the soil. However, the promotion...

Cited by 11 publications

References 40 publications

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update – a review of advances in environmental analysis

Establishment and evaluation of a quantitative analysis model for potentially toxic metals in wet soil samples by LIBS

LIBS in agriculture: A review focusing on revealing nutritional and toxic elements in soil, water, and crops

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