Halogen determination in food and biological materials using plasma-based techniques: challenges and trends of sample preparation

Mesko, Márcia F.; Costa, Vanize C.; Picoloto, Rochele S.; Bizzi, Cezar A.; Mello, Paola A.

doi:10.1039/c5ja00488h

Cited by 75 publications

(58 citation statements)

References 149 publications

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“…Compared with Te, the signals of 115 In obtained varied significantly even when added after centrifugation, which could be related to the formation of In(OH) 3 in the aqueous ammonia solution (Mesko et al . ). Therefore, Te is a more suitable internal standard element than indium in the ammonia solution for correcting the signal variation of Br and I during ICP‐MS operation.…”

Section: Resultsmentioning

confidence: 97%

“…Alkali extraction is a simple method whose efficiency depends on the solubility of the analyte in alkaline solutions (Mesko et al . ). For example, tetramethylammonium hydroxide (TMAH) as a common alkaline solution is used to extract Br and I in plant and soil materials (Yamada et al .…”

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confidence: 97%

“…, Mesko et al . ). In addition, the serious memory effects of halogens in acid medium significantly affect the accuracy of analysis in ICP‐MS (Li et al .…”

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confidence: 97%

“…However, it was necessary to separate the interfering components from the matrix solution using the cation-exchange resin because of the high flux to sample ratio (6:1) (Li et al 2002). Alkali extraction is a simple method whose efficiency depends on the solubility of the analyte in alkaline solutions (Mesko et al 2016). For example, tetramethylammonium hydroxide (TMAH) as a common alkaline solution is used to extract Br and I in plant and soil materials (Yamada et al 2002, Tagami et al 2006.…”

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confidence: 99%

“…Acid digestion in a closed vessel has been widely used for the determination of trace elements in geological materials (Potts and Robinson 2003, Cotta and Enzweiler 2012, Hu and Qi 2014. However, acid digestion methods have been rarely used for the determination of Br and I in geological samples because of the loss of Br and I in acid digestion (Oliveira et al 2010, Mesko et al 2016). In addition, the serious memory effects of halogens in acid medium significantly affect the accuracy of analysis in ICP-MS (Li et al 2002.…”

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confidence: 99%

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A Rapid Acid Digestion Technique for the Simultaneous Determination of Bromine and Iodine in Fifty‐Three Chinese Soils and Sediments by ICP‐MS

Xie

et al. 2018

Geostandard Geoanalytic Res

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Bromine and iodine are important tracers for geochemical and environmental studies. In this study, a rapid acid digestion (HNO3 + HF) with ammonia dilution for the simultaneous determination of bromine and iodine in soils and sediments using ICP‐MS was developed. The recoveries of Br and I were controlled by the synergic effect of temperature and time. It took only 15 min at 140 °C for the complete recovery of Br and I in sediment (GSD‐2) and soil (GSS‐24) reference materials, which is a process that needs 2–6 h at 90 °C. A serious loss of Br and I was found at a higher digestion temperature of 190 °C. A 5% v/v NH4OH dilution effectively eliminated the memory effects and stabilised the signals of Br and I. Moreover, ammonia dilution also avoided the corrosiveness of HF on the sample introduction system and torch of ICP‐MS. Tellurium is a more suitable internal standard element than In in the ammonia medium. To avoid the adsorption of residues of dissolution on Te, addition of Te should be carried out after centrifuging the solution. The developed method was successfully applied to determine Br and I in fifty‐three Chinese soil and sediment reference materials. This simple method shows great potential for the rapid determination of Br and I in large batches of geological and environmental samples commonly analysed for mineral exploration and environmental geochemistry studies.

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Section: Resultsmentioning

confidence: 97%

mentioning

confidence: 97%

“…, Mesko et al . ). In addition, the serious memory effects of halogens in acid medium significantly affect the accuracy of analysis in ICP‐MS (Li et al .…”

mentioning

confidence: 97%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A Rapid Acid Digestion Technique for the Simultaneous Determination of Bromine and Iodine in Fifty‐Three Chinese Soils and Sediments by ICP‐MS

Xie

et al. 2018

Geostandard Geoanalytic Res

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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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Feasibility of microwave‐induced combustion combined with inductively coupled plasma mass spectrometry for bromine and iodine determination in human nail

Novo

Henn

Flores

et al. 2020

Rapid Comm Mass Spectrometry

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Rationale Bromine and iodine have important physiological functions; however, in inadequate concentration, they can also cause several physiological problems. Their mobility assessment in human organisms through biological sampling may help clarify some doubts related to metabolic routes, which are still not well elucidated. In this context, a suitable analytical method for this purpose should be developed. Methods An analytical method for determining ultratrace levels of bromine and iodine in human nail samples was developed. Inductively coupled plasma mass spectrometry (ICP‐MS) using a conventional nebulization system was immediately chosen as the determination tool because of its powerful sensitivity and selectivity. Sample preparation methods including microwave‐induced combustion (MIC), microwave‐assisted extraction, and microwave‐assisted digestion were evaluated. The compatibility of the final solutions with ICP‐MS analysis was considered while the method was developed. Results MIC was chosen as the most suitable method for the sample preparation for determining the levels of bromine and iodine in human nail samples using ICP‐MS. Unlike other sample preparation methods, this one fully eliminated interferences related to the carbon content and memory effects. Sample masses up to 100 mg were efficiently digested, and the analytes were quantitatively absorbed using only 50 mmol L−1 NH4OH solution. Recoveries ranged from 93% to 102%, and the relative standard deviation was < 8%. Conclusions The proposed analytical method presents important characteristics for routine analysis. It allows ultratrace determination even when low sample masses are used because of the low blank values, reduced volume of reagents, and powerful detectability using ICP‐MS.

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Halogen determination in food and biological materials using plasma-based techniques: challenges and trends of sample preparation

Abstract: Sample preparation for trace halogen determination in biological and food samples is a critical aspect to be considered.

Cited by 75 publications

References 149 publications

A Rapid Acid Digestion Technique for the Simultaneous Determination of Bromine and Iodine in Fifty‐Three Chinese Soils and Sediments by ICP‐MS

A Rapid Acid Digestion Technique for the Simultaneous Determination of Bromine and Iodine in Fifty‐Three Chinese Soils and Sediments by ICP‐MS

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

Feasibility of microwave‐induced combustion combined with inductively coupled plasma mass spectrometry for bromine and iodine determination in human nail

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