Signal enhancement in collinear double-pulse laser-induced breakdown spectroscopy applied to different soils

Nicolodelli, Gustavo; Senesi, Giorgio S.; Romano, Renan Arnon; Perazzoli, I. L. O.; Milori, Débora Marcondes Bastos Pereira

doi:10.1016/j.sab.2015.06.008

Cited by 63 publications

(26 citation statements)

References 43 publications

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“…The main advantages of LIBS are the potential for simultaneous multi-element soil analysis with minimal sample preparation, high processing speed, and low cost of analysis, compared to traditional methods. The LIBS technique has been evaluated as an alternative method for the quantification of contaminants, macro/micronutrients, and carbon (C) in soils [7][8][9]. It has been used in investigations of texture, pH, and macro-and micronutrients in fertilizers and soil organominerals [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the roles of metals and humic fractions in the podzolization of soils from the Amazon region using two analytical spectroscopy techniques

Tadini

Nicolodelli

Marangoni

et al. 2019

Microchemical Journal

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Soil organic matter (SOM) plays an important role in environmental sustainability, since it is involved in carbon and nutrient cycling. Consequently, it is a key factor to consider in studies concerning global climate change and agronomy.Among the main components of SOM are humic substances (HS), which are divided, according to their solubility, into humic acid (HA), fulvic acid (FA), and humin (HU) fractions. Study of the chemical properties of this organic matter is important for understanding the biogeochemical processes occurring in the soil. The aim of this work was to determine the metals iron (Fe) and aluminum (Al), using flame atomic absorption spectrometry (FAAS) and laser-induced breakdown spectroscopy (LIBS), in order to elucidate the role of organic matter in the transport of these metals in Amazonian soils. The results showed that FA was important for Al, while the HA fraction was more selective towards Fe. The translocations of these metals to deeper profiles in two different soils involved either young and less humified organic matter, or older organic matter with a low degree of humification. Therefore, these two humic fractions were involved in the process of soil podzolization, with FA having a predominant role in the transport of Al, while HA was mainly responsible for the transport of Fe.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the roles of metals and humic fractions in the podzolization of soils from the Amazon region using two analytical spectroscopy techniques

Tadini

Nicolodelli

Marangoni

et al. 2019

Microchemical Journal

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“…Another advantage of LIBS is its suitability for a broad range of multivariate chemometric approaches for data analysis. In the last decades, this technique has been applied in several fi elds [2], including agriculture, e.g., soil, plant, and compost analyses [3][4][5][6][7][8][9][10], but only in the last years has attention been focused on fertilizer analysis [11][12][13][14][15][16].…”

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Laser-Induced Breakdown Spectroscopy Associated with Multivariate Analysis Applied to Discriminate Fertilizers of Different Nature

et al. 2017

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A number of phosphate rocks and organomineral P fertilizers was analyzed comparatively by laser-induced breakdown spectroscopy (LIBS) in both single-and double-pulse modes associated with two chemometric methods, i.e., principal components analysis (PCA) and partial least squares regression (PLSR). PCA was demonstrated to be a valuable method for the identifi cation of spectral differences between similar samples with only minor compositional differences. The raw and normalized LIBS spectra were able to provide effective identifi cation and discrimination at a 95% confi dence level and in good agreement with the reference concentrations. Results obtained confi rm the promising potential of LIBS for the rapid classifi cation of P fertilizers in situ.

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“…17,18 Researchers have already conducted many studies on the detection of heavy metals in soils using conventional LIBS. [19][20][21] For example, LIBS combined with RBF neural network used to analyze Cd in soils, and obtained the LOD of Cd was 16.5 mg kg À1 . 22 The spectral characteristics of Cd were analyzed by LIBS in pellet soil samples, yielding the calculated detection limits were 1.3, 3.6 and 4.0 mg g À1 for Cd II 214.441 nm, Cd II 226.502 nm and Cd I 228.802 nm, respectively.…”

Section: Introductionmentioning

confidence: 99%

Detection of cadmium in soils using laser-induced breakdown spectroscopy combined with spatial confinement and resin enrichment

Tian

et al. 2018

RSC Adv.

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Signal enhancement in collinear double-pulse laser-induced breakdown spectroscopy applied to different soils

Cited by 63 publications

References 43 publications

Evaluation of the roles of metals and humic fractions in the podzolization of soils from the Amazon region using two analytical spectroscopy techniques

Evaluation of the roles of metals and humic fractions in the podzolization of soils from the Amazon region using two analytical spectroscopy techniques

Laser-Induced Breakdown Spectroscopy Associated with Multivariate Analysis Applied to Discriminate Fertilizers of Different Nature

Detection of cadmium in soils using laser-induced breakdown spectroscopy combined with spatial confinement and resin enrichment

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