Determination of Cl, Br and I in soils by ICP-MS: microwave-assisted wet partial digestion using H<sub>2</sub>O<sub>2</sub>in an ultra-high pressure system

Pereira, Letícia; Enders, Michele S.P.; Iop, Gabrielle D.; Mello, Paola A.; Flores, Érico M.M.

doi:10.1039/c7ja00365j

Cited by 17 publications

(9 citation statements)

References 51 publications

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“…Only the last one provided a quantitative recovery for all the elements analysed; in particular three different mass fractions were obtained for Sr depending on the digestion method used. The determination of Cl by ED-XRF is straightforward while a careful optimisation of the digestion is needed when ICP-based techniques are to be used ( Pereira, Enders, Mello & Flores, 2018 ); on the contrary as described above some very light elements such as Na and B cannot be analysed with the instrument used in this work.…”

Section: Resultsmentioning

confidence: 99%

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

et al. 2021

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Products with a Protected Denomination of Origin (PDO) are vulnerable to misdescription of their true geographical origin. In this work a method has been developed that allows the authentication of La Vera paprika powder (Pimentón de la Vera), a PDO product from the central-west Spanish region, Extremadura. The mass fractions of Br, Ca, Cr, Cl, Cu, Fe, K, Mn, Ni, P, Rb, S, Sr and Zn determined by energy dispersive X-ray fluorescence (ED-XRF) are used for classification purposes by multivariate analysis using Soft Independent Modelling of Class Analogy (SIMCA) (PCA-Class) and Partial Least Square-Discriminant Analysis (PLS-DA). Sixty-seven paprika samples purchased in supermarkets around Europe and on-line via the official web-site of Pimentón de La Vera, were used to build up the models for prediction purposes. The PCA-class model of La Vera paprika powder had a sensitivity of 82%, a specificity of 100% and an accuracy of 91%, whereas the PLS-DA model had a sensitivity of 100%, a specificity of 91% and an accuracy of 96%.

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Section: Resultsmentioning

confidence: 99%

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

et al. 2021

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“…In brief, both wet digestion sample treatment protocols, for example, using microwave‐assisted systems (Barbosa et al, 2013; Pereira et al, 2018), pyrohydrolysis (Pereira et al, 2018), and LA‐ICP‐MS approaches (Seo et al, 2011; Hammerli et al, 2013; Rottier & Audétat, 2019) are implicated for chlorine, bromine, and iodine quantification in different matrices. Boulyga & Heumann described the isotope dilution LA‐ICP‐MS method for direct determination of chlorine, bromine, and iodine ( 37 Cl, 79 Br, and 129 I enriched spikes, respectively) in rock and sediment samples.…”

Section: Icp‐msmentioning

confidence: 99%

Mass Spectrometry‐based Techniques for Direct Quantification of High Ionization Energy Elements in Solid Materials—challenges and Perspectives

Gubal

Chuchina

Sorokina

et al. 2020

Mass Spectrometry Reviews

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The determination of nonmetals, first of all, the most electronegative ones—nitrogen, oxygen, fluorine, chlorine, and bromine, poses the highest challenge for element analysis. These elements are characterized by high reactivity, volatility, high ionization energy, and the absence of intensive spectral lines in the optical spectral range. Conventional techniques of their quantification include considerable “wet chemistry” stages so the application of these techniques for the solid sample is highly laborious and prone to uncontrollable uncertainties. Additionally, current development in material science and other areas requires the quantification of the elements at lower levels with good sensitivity. Owing to their robustness and flexibility, mass spectrometry techniques provide vast possibilities for the quantification, spatial and isotopic analysis, including the solutions for direct analysis of solids. The current review focuses on the application of major mass spectrometric techniques for the quantification of N, O, F, Cl, and Br in solid samples. The following techniques are mainly considered: thermal ionization mass spectrometry (TIMS), isotope‐ratio MS (IRMS), secondary ion MS (SIMS), inductively coupled plasma MS (ICP‐MS), and glow discharge MS (GDMS); as the most accessible and widely applied for the purpose. General ionization issues, advantages, limitations, and novel methodological solutions are discussed. © 2020 John Wiley & Sons Ltd.

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“…Determination of halogens such as Cl and Br by ED-XRF is straightforward while careful optimisation of the digestion procedure is fundamental when ICP-based methods are used [17]. For all the BV-C populations, Cl contributed strongly to the definition of the model.…”

Section: Partial Least Square-discriminant Analysismentioning

confidence: 99%

Use of energy-dispersive X-ray fluorescence combined with chemometric modelling to classify honey according to botanical variety and geographical origin

et al. 2019

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Honey is one of the food commodities most frequently affected by fraud. Although addition of extraneous sugars is the most common type of fraud, analytical methods are also needed to detect origin masking and misdescription of botanical variety. In this work, multivariate analysis of the content of certain macro-and trace elements, determined by energy-dispersive X-ray fluorescence (ED-XRF) without any type of sample treatment, were used to classify honeys according to botanical variety and geographical origin. Principal component analysis (PCA) and partial least squares-discriminant analysis (PLS-DA) were used to create classification models for nine different botanical varieties-orange, robinia, lavender, rosemary, thyme, lime, chestnut, eucalyptus and manuka-and seven different geographical origins-Italy, Romania, Spain, Portugal, France, Hungary and New Zealand. Although characterised by 100% sensitivity, PCA models lacked specificity. The PLS-DA models constructed for specific combinations of botanical variety-country (BV-C) allowed the successful classification of honey samples, which was verified by external validation samples.

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Determination of Cl, Br and I in soils by ICP-MS: microwave-assisted wet partial digestion using H₂O₂in an ultra-high pressure system

Abstract: In this study, we proposed a method for halogen determination using inductively coupled plasma mass spectrometry (ICP-MS) after partial digestion of soils basically using H2O2 as a reagent for organic matrix composition.

Cited by 17 publications

References 51 publications

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

Mass Spectrometry‐based Techniques for Direct Quantification of High Ionization Energy Elements in Solid Materials—challenges and Perspectives

Use of energy-dispersive X-ray fluorescence combined with chemometric modelling to classify honey according to botanical variety and geographical origin

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Determination of Cl, Br and I in soils by ICP-MS: microwave-assisted wet partial digestion using H2O2in an ultra-high pressure system

Abstract: In this study, we proposed a method for halogen determination using inductively coupled plasma mass spectrometry (ICP-MS) after partial digestion of soils basically using H2O2 as a reagent for organic matrix composition.

Cited by 17 publications

References 51 publications

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

Authentication of PDO paprika powder (Pimentón de la Vera) by multivariate analysis of the elemental fingerprint determined by ED-XRF. A feasibility study

Mass Spectrometry‐based Techniques for Direct Quantification of High Ionization Energy Elements in Solid Materials—challenges and Perspectives

Use of energy-dispersive X-ray fluorescence combined with chemometric modelling to classify honey according to botanical variety and geographical origin

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Determination of Cl, Br and I in soils by ICP-MS: microwave-assisted wet partial digestion using H₂O₂in an ultra-high pressure system