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

Ren, Jie; Zhao, Yanru; Yu, Ke

doi:10.1016/j.compag.2022.106986

Cited by 46 publications

(22 citation statements)

References 104 publications

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“…Dissolved gaseous Hg and reactive Hg fractions were purged 105 from 10 L batches of water samples aer addition of acidic SnCl 2 . The Hg 0 generated was captured on a Climpregnated activated-carbon-trap before thermal desorption and trapping in a 40% reverse aqua regia solution for determination of d 202 Hg, D 199 Hg, and D 200 Hg by MC-ICP-MS.…”

Section: Atomic Absorption Spectrometrymentioning

confidence: 99%

“…Hu et al 199 reviewed (137 references) calibration-free LIBS in which the measured concentration is derived from an algorithm rather than from the analysis of standards. Ren et al 200 summarised (134 references) applications of LIBS in agriculture in the period 2017 to 2021 with particular reference to the detection of nutrients and PTEs in soils, fertilisers, waters and crops. Khan et al 109 included the analysis of plants and plant-derived foodstuffs in their review (207 references) which also featured a useful comparison of the advantages and disadvantages of different types of LIBS analysis.…”

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

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Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2023

J. Anal. At. Spectrom.

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Section: Atomic Absorption Spectrometrymentioning

confidence: 99%

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2023

J. Anal. At. Spectrom.

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“…The characteristic spectral lines of specific elements can be found in the Atomic Spectral Database (ASD) of the National Institute of Standards and Technology (NIST) [ 35 , 36 ]. In quantitative analysis, in addition to traditional methods, such as internal and external scaling [ 37 ], machine learning methods, such as support vector machines (SVM) [ 38 ], principal component analysis (PCA) [ 39 ], the back propagation (BP) neural network [ 40 ], and partial least square (PLS) [ 41 ], are also becoming widely used. Machine learning methods, such as BP neural networks, SVM, and PCA, perform more satisfactorily than traditional methods such as PLS for LIBS spectral data mining.…”

Section: Instrument and Principle Of Libsmentioning

confidence: 99%

Enhanced Laser-Induced Breakdown Spectroscopy for Heavy Metal Detection in Agriculture: A Review

Yang

Ren

et al. 2022

Sensors

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Heavy metal pollution in agriculture is a significant problem that endangers human health. Laser-induced breakdown spectroscopy (LIBS) is an emerging technique for material and elemental analysis, especially heavy metals, based on atomic emission spectroscopy. The LIBS technique has been widely used for rapid detection of heavy metals with its advantages of convenient operation, simultaneous detection of multi-elements, wide range of elements, and no requirement for the state and quantity of samples. However, the development of LIBS is limited by its detection sensitivity and limit of detection (LOD). Therefore, in order to improve the detection sensitivity and LOD of LIBS, it is necessary to enhance the LIBS signal to achieve the purpose of detecting heavy metal elements in agriculture. This review mainly introduces the basic instruments and principles of LIBS and summarizes the methods of enhanced LIBS signal detection of heavy metal elements in agriculture over the past 10 years. The three main approaches to enhancing LIBS are sample pretreatment, adding laser pulses, and using auxiliary devices. An enhanced LIBS signal may improve the LOD of heavy metal elements in agriculture and the sensitivity and stability of the LIBS technique. The enhanced LIBS technique will have a broader prospect in agricultural heavy metal monitoring and can provide technical support for developing heavy metal detection instruments.

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“…Laser-induced breakdown spectroscopy (LIBS) is a rapidly developing chemical element analysis technology that has been widely used in the detection of alloys, [5][6][7] plant materials, [8][9][10] food and nutrition, [11][12][13] rocks, [14][15][16] and soils. [17][18][19] As a fast, online, pollution-free, and low-cost technology, it is well suited for the approximate analysis of milk powder.…”

Section: Introductionmentioning

confidence: 99%