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Willner J, Brunnbauer L, Larisegger S, Nelhiebel M, Marchetti-Deschmann M, Limbeck A. A versatile approach for the preparation of matrix-matched standards for LA-ICP-MS analysis - Standard addition by the spraying of liquid standards. Talanta 2023; 256:124305. [PMID: 36736271 DOI: 10.1016/j.talanta.2023.124305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 01/17/2023] [Accepted: 01/25/2023] [Indexed: 01/27/2023]
Abstract
In the last years, LA-ICP-MS has become an attractive technique for analyzing solid samples from various research fields. However, application in material science is often hampered by the limited availability of appropriate certified reference materials, which are a precondition for accurate quantification. Thus, frequently in-house prepared standards are used, which match the sample's composition and include all elements of interest at the required concentration levels. However, preparing and characterizing such standards is often labor-intensive and time-consuming. This work proposes a new approach for the fabrication of matrix-matched standards based on the concept of standard addition. In the first step, the analytes of interest are homogeneously deposited onto the sample surface using liquid standards and a spraying device. For analysis, the generated thin layer is ablated simultaneously with the underlying sample. Thereby deviations in the ablation process and particle transport can be avoided. It could be shown that the developed method is highly versatile and could be easily adapted to the actual needs. Using silicon, silicon carbide, copper, aluminum, and glass as a matrix, excellent linear correlations between observed signal intensities and deposited amounts were found for the elements Zn, Ag, In, and Pb (R2 - values greater than 0.99). The method was applied to determine the content of sulfur, zinc, silver, indium, and lead in a commercial Kapton® polyimide film. The obtained results could be verified based on the homogeneously distributed sulfur by conventional liquid ICP-MS analysis after sample digestion, showing similar precision and accuracy. Lead was found to show a very inhomogeneous distribution in the Kapton® film, with concentration below the LOD at most measured locations and irregularly occurring spots with significantly higher concentrations. Finally, a quantitative depth profile of sulfur in a Kapton® film has been measured to assess the uptake of SO2 after a weathering experiment.
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Affiliation(s)
- Jakob Willner
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060 Vienna, Austria; KAI Kompetenzzentrum Automobil- und Industrieelektronik GmbH, Technologiepark Villach - Europastraße 8, 8524 Villach, Austria
| | - Lukas Brunnbauer
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060 Vienna, Austria
| | - Silvia Larisegger
- KAI Kompetenzzentrum Automobil- und Industrieelektronik GmbH, Technologiepark Villach - Europastraße 8, 8524 Villach, Austria
| | - Michael Nelhiebel
- KAI Kompetenzzentrum Automobil- und Industrieelektronik GmbH, Technologiepark Villach - Europastraße 8, 8524 Villach, Austria
| | | | - Andreas Limbeck
- TU Wien, Institute of Chemical Technologies and Analytics, Getreidemarkt 9/164-I(2)AC, 1060 Vienna, Austria.
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2
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Elemental profile of tail hair to evaluate nutritional status of Angus, Nelore and Wagyu cattle breeds. J Radioanal Nucl Chem 2022. [DOI: 10.1007/s10967-022-08553-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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3
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Determination of elemental impurities Cd, Pb, As, Hg, Co, V, Ni, Pd, Ru, Ag, Pt, Mo, Al, and Fe in highly potent analgesic activity agent by microwave-induced plasma optical emission spectrometry (MIP OES). CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02275-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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4
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Souza JP, Boff JL, Rodrigues LF, Moraes DP, Pereira JSF. Microwave-induced combustion for petroleum coke digestion: a promising sample preparation strategy for subsequent elemental determination. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1285-1290. [PMID: 35262123 DOI: 10.1039/d2ay00223j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The increasing demand for the elemental determination of petrochemical samples by inductively coupled plasma techniques requires the development of suitable sample preparation methods that permit high sample throughput and are in accordance with green chemistry recommendations. For this aim, the development of microwave-induced combustion (MIC) method has been attempted to completely digest petroleum coke samples and address quantitative determination of elements, such as Ag, Al, Ba, Ca, Cd, Co, Cu, Fe, Mg, Mn, Mo, Na, Ni, Pb, Sr, V and Zn, by inductively coupled plasma optical emission spectrometry (ICP OES). A sequential procedure to evaluate the sample mass and the solution to retain the analytes quantitatively was first conducted. Satisfactory results were obtained (residual carbon content in final solutions was lower than 0.5%) by digesting 400 mg of samples using 20 bar of oxygen and analytes were quantitatively retained in a dilute acid solution such as 4.2 mol L-1 HNO3. An agreement better than 87% was achieved using certified reference materials and the performance of the proposed method was also compared to that of the standard procedure recommended by the American Society of Testing and Materials ASTM D 5600. Despite both methods producing similar results, the proposed method by MIC was much simpler, offered a higher sample throughput and the digests were compatible with ICP OES measurements avoiding interferences in the determination step compared the ASTM D 5600 method. These results clearly demonstrated that the proposed MIC method in combination with ICP OES could be a promising alternative to obtain quantitative information about the elemental composition of petroleum coke.
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Affiliation(s)
- J P Souza
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil.
| | - J L Boff
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil.
| | - L F Rodrigues
- Institute of Petroleum and Natural Resources, Pontifical Catholic University of Rio Grande do Sul, 90619-900, Porto Alegre, RS, Brazil
| | - D P Moraes
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil.
| | - J S F Pereira
- Instituto de Química, Universidade Federal do Rio Grande do Sul, 91501-970, Porto Alegre, RS, Brazil.
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5
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Waechter SR, Vecchia PD, Barin JS, Flores EMM, Duarte FA. Microwave-based strategies for sample preparation and halogen determination in blood using ICP-MS. Talanta 2021; 226:122157. [PMID: 33676704 DOI: 10.1016/j.talanta.2021.122157] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 10/22/2022]
Abstract
In this work, two microwave-assisted sample preparation methods based on combustion and ultraviolet digestion for futher determination of Br, Cl, and I in blood by inductively coupled plasma mass spectrometry were proposed. For microwave-induced combustion (MIC), blood was spotted on square pieces of Munktell TFN paper, and water and diluted NH4OH were evaluated as absorbing solutions. The stability of the analytes in the spotted blood was also evaluated. During 90 days, no changes of halogen content were observed for samples (with and without anticoagulant) on paper stored in a desiccator at 20 ± 5 °C. Whole blood was also digested by microwave-assisted ultraviolet digestion (MAD-UV). Some parameters as the volume of HNO3 solution, the influence of H2O2, and the effect of UV radiation were investigated. The interferences caused by C and K on halogen determination were carefully investigated. The results for MIC and MAD-UV and Br, Cl and I determination by ICP-MS presented no difference. The accuracy of MIC and MAD-UV was also evaluated by analyte spike with reference solutions of Br, Cl and I using inorganic species and also organic I standard (T4-levothyroxine). For both methods, recoveries were 94 and 108% for Br, 96 and 103% for Cl, and 104 and 97% for I. In case of organic I, recoveries were 99 and 111% for MIC and MAD-UV, respectively. The limits of quantification for MIC and MAD-UV after ICP-MS determination were 0.06 and 0.04 μg g-1 for Br, 14 and 30 μg g-1 for Cl and 12 and 8 ng g-1 for I, respectively. The proposed methods provide a suitable digestion approach, assuring safety and high digestion efficiency for further halogen determination in blood, with the possibility to use in clinical analysis.
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Affiliation(s)
- Samuel R Waechter
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Paula Dalla Vecchia
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Juliano S Barin
- Departamento de Tecnologia e Ciência de Alimentos, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Erico M M Flores
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil
| | - Fabio A Duarte
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900, Santa Maria, RS, Brazil.
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6
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Research and Regulatory Advancements on Remediation and Degradation of Fluorinated Polymer Compounds. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10196921] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a class of chemicals used in various commercial industries to include food packaging, non-stick repellent, and waterproof products. International environmental protection agencies are currently looking for ways to detect and safely remediate both solid and aqueous PFAS waste due to their harmful effects. Incineration is a technique that disposes of chemicals by breaking down the chemicals at high temperatures, upwards of 1400 °C. Incineration has been used on other related compounds, but PFAS presents a challenge during thermal degradation due to the molecular stability and reactivity of fluorine. Research on the efficacy of this method is currently limited, as the degradation byproducts of PFAS are not fully characterized. Current research is mostly focused on the development of benchtop methods for the safe remediation of solid PFAS waste. Aqueous fire fighting foams (AFFFs) have garnered significant attention due to extensive use since development in the 1960s. Numerous communities that are closely located near airports have been shown to have higher than average PFAS contamination from the repeated use. Detection and remediation of surface, subsurface, and wastewater have become a primary concern for environmental agencies. Use of electrochemical techniques to remove the PFAS contaminants has shown recent promise to help address this issue. Critical to the remediation efforts is development of standardized detection techniques and the implementation of local and international regulations to control the production and use of fluorinated products. No single solution has yet been developed, but much progress has been made in recent years in governmental regulation, detection, and remediation techniques.
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7
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Combined LA-ICP-MS/LIBS: powerful analytical tools for the investigation of polymer alteration after treatment under corrosive conditions. Sci Rep 2020; 10:12513. [PMID: 32719351 PMCID: PMC7385656 DOI: 10.1038/s41598-020-69210-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Accepted: 07/07/2020] [Indexed: 11/08/2022] Open
Abstract
Polymers are used in a variety of different areas, including applications in food packaging, automotive and the semiconductor industry. Information about degradation of these materials during application, but also uptake of pollutants from the surrounding environment is therefore of great interest. Conventional techniques used for polymer characterization such as FT-IR or Raman spectroscopy, but also thermo-analytical techniques offer insights into degradation processes but lack the possibility to detect uptake of inorganic species. Moreover, these techniques do not allow the measurement of depth profiles, thus information about degradation or pollutant uptake with sample depth is not accessible. In this work, we propose LA-ICP-MS and LIBS as powerful analytical tools for polymer characterization, overcoming the limitations of conventional analytical techniques used for polymer analysis. Applicability of the developed procedures is demonstrated by the analysis of artificially weathered polyimides and modern art materials, indicating that the degradation of the polymer but also the uptake of corrosive gases is not limited to the sample surface. Finally, a tandem LA-ICP-MS/LIBS approach is employed, which combines the advantages of both laser-based procedures, enabling the simultaneous analysis of polymer degradation and cadmium uptake of polystyrene after exposure to UV radiation and treatment with artificial sea water.
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8
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Henn AS, Frohlich AC, Pedrotti MF, Duarte FA, Paniz JN, Flores EM, Bizzi CA. Microwave-assisted solid sampling system for Hg determination in polymeric samples using FF-AAS. Microchem J 2019. [DOI: 10.1016/j.microc.2019.03.051] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Santos RF, Cruz SM, Krzyzaniak SR, Duarte FA, Mello PA, Flores EM. Trace metal impurities determination in high-purity polyimide by plasma-based techniques. Microchem J 2019. [DOI: 10.1016/j.microc.2019.01.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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10
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Picoloto RS, Enders MS, Doneda M, Iop GD, Duarte FA, Barin JS, Krug FJ, Flores EM. An in situ pre-concentration method for fluorine determination based on successive digestions by microwave-induced combustion. Talanta 2019; 194:314-319. [DOI: 10.1016/j.talanta.2018.10.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 10/05/2018] [Accepted: 10/05/2018] [Indexed: 11/29/2022]
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11
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Pedrotti MF, Pereira LSF, Bizzi CA, Paniz JNG, Barin JS, Flores EMM. Microwave-induced combustion: Thermal and morphological aspects for understanding the mechanism of ignition process for analytical applications. Talanta 2017; 174:64-71. [PMID: 28738635 DOI: 10.1016/j.talanta.2017.05.069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 11/16/2022]
Abstract
In the present work, for the first time a systematic study was performed using an infrared camera and scanning electron microscopy (SEM) coupled to energy dispersive X-ray spectrometry (EDS) to evaluate the mechanisms involved in microwave-induced combustion method, which has been extensively used for sample preparation. Cellulose and glass fiber discs, wetted with the igniter solution (6molL-1 NH4NO3), were evaluated under microwave field in a monomode system. The temperature of the discs surface was recorded during microwave irradiation and the effect of NH4NO3 concentration and irradiation time on cellulose oxidation was evaluated. The morphology of the discs surface was characterized by SEM before and after irradiation in an inert atmosphere. According to the results, the surface temperature of the discs increased near to 100°C and remained in this temperature for few seconds while water evaporate. After that, temperature increased over 200°C due to the thermal decomposition of NH4NO3 salt, releasing a large amount of energy that accelerates cellulose oxidation. The higher the igniter concentration, the shorter was the microwave irradiation time for cellulose oxidation. The SEM images revealed that cellulose disc was more porous after microwave irradiation, enhancing oxygen diffusion within the paper and making easier its ignition. The EDS spectrum of cellulose and glass fiber discs showed that signal intensity for nitrogen decreased after microwave irradiation, showing that NH4NO3 was consumed during this process. Therefore, it was demonstrated that the ignition process is the result of synergic interaction of NH4NO3 thermal decomposition and organic matter oxidation (cellulose) releasing heat and feeding the chain reaction.
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Affiliation(s)
- Matheus F Pedrotti
- Departamento de Engenharia Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Leticia S F Pereira
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Cezar A Bizzi
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Jose N G Paniz
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Juliano S Barin
- Departamento de Tecnologia e Ciência de Alimentos, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Erico M M Flores
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
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12
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Pereira LSF, Pedrotti MF, Enders MSP, Albers CN, Pereira JSF, Flores EMM. Multitechnique Determination of Halogens in Soil after Selective Volatilization Using Microwave-Induced Combustion. Anal Chem 2016; 89:980-987. [DOI: 10.1021/acs.analchem.6b04300] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- L. S. F. Pereira
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - M. F. Pedrotti
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - M. S. P. Enders
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - C. N. Albers
- Department
of Geochemistry, Geological Survey of Denmark and Greenland, Ø.
Voldgade 10, 1350 Copenhagen, Denmark
- Center
for Permafrost (CENPERM), Department of Geosciences and Natural Resource
Management, University of Copenhagen, 1350 Copenhagen, Denmark
| | - J. S. F. Pereira
- Departamento
de Química Inorgânica, Universidade Federal do Rio Grande do Sul, 91501-970 Porto Alegre, Rio
Grande do Sul, Brazil
| | - E. M. M. Flores
- Departamento
de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
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13
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Simultaneous determination of iron and nickel in fluoropolymers by solid sampling high-resolution continuum source graphite furnace atomic absorption spectrometry. Talanta 2016; 160:454-460. [DOI: 10.1016/j.talanta.2016.07.040] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2016] [Revised: 07/18/2016] [Accepted: 07/21/2016] [Indexed: 11/21/2022]
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14
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Muller EI, Souza JP, Muller CC, Muller ALH, Mello PA, Bizzi CA. Microwave-assisted wet digestion with H2O2 at high temperature and pressure using single reaction chamber for elemental determination in milk powder by ICP-OES and ICP-MS. Talanta 2016; 156-157:232-238. [PMID: 27260458 DOI: 10.1016/j.talanta.2016.05.019] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 11/25/2022]
Abstract
In this work a green digestion method which only used H2O2 as an oxidant and high temperature and pressure in the single reaction chamber system (SRC-UltraWave™) was applied for subsequent elemental determination by inductively coupled plasma-based techniques. Milk powder was chosen to demonstrate the feasibility and advantages of the proposed method. Samples masses up to 500mg were efficiently digested, and the determination of Ca, Fe, K, Mg and Na was performed by inductively coupled plasma optical emission spectrometry (ICP-OES), while trace elements (B, Ba, Cd, Cu, Mn, Mo, Pb, Sr and Zn) were determined by inductively coupled plasma mass spectrometry (ICP-MS). Residual carbon (RC) lower than 918mgL(-1) of C was obtained for digests which contributed to minimizing interferences in determination by ICP-OES and ICP-MS. Accuracy was evaluated using certified reference materials NIST 1549 (non-fat milk powder certified reference material) and NIST 8435 (whole milk powder reference material). The results obtained by the proposed method were in agreement with the certified reference values (t-test, 95% confidence level). In addition, no significant difference was observed between results obtained by the proposed method and conventional wet digestion using concentrated HNO3. As digestion was performed without using any kind of acid, the characteristics of final digests were in agreement with green chemistry principles when compared to digests obtained using conventional wet digestion method with concentrated HNO3. Additionally, H2O2 digests were more suitable for subsequent analysis by ICP-based techniques due to of water being the main product of organic matrix oxidation. The proposed method was suitable for quality control of major components and trace elements present in milk powder in consonance with green sample preparation.
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Affiliation(s)
- Edson I Muller
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil.
| | - Juliana P Souza
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Cristiano C Muller
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Aline L H Muller
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Paola A Mello
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
| | - Cezar A Bizzi
- Departamento de Química, Universidade Federal de Santa Maria, 97105-900 Santa Maria, RS, Brazil
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15
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Determination of elemental impurities in poly(vinyl chloride) by inductively coupled plasma optical emission spectrometry. Talanta 2016; 152:371-7. [DOI: 10.1016/j.talanta.2016.02.032] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Revised: 02/13/2016] [Accepted: 02/13/2016] [Indexed: 11/24/2022]
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16
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Christopher SJ, Vetter TW. Application of Microwave-Induced Combustion and Isotope Dilution Strategies for Quantification of Sulfur in Coals via Sector-Field Inductively Coupled Plasma Mass Spectrometry. Anal Chem 2016; 88:4635-43. [DOI: 10.1021/acs.analchem.5b03981] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Steven J. Christopher
- NIST Material Measurement Laboratory, Chemical
Sciences Division, Environmental Chemical Sciences Group, NIST Charleston
Laboratory, 331 Fort Johnson
Road, Charleston, South Carolina 29412, United States
| | - Thomas W. Vetter
- NIST Material Measurement Laboratory, Chemical
Sciences Division, Inorganic Measurement Science Group, MS 8391 Gaithersburg, Maryland 20899, United States
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17
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Feasibility of halogen determination in noncombustible inorganic matrices by ion chromatography after a novel volatilization method using microwave-induced combustion. Talanta 2016; 147:76-81. [DOI: 10.1016/j.talanta.2015.09.031] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Revised: 09/10/2015] [Accepted: 09/11/2015] [Indexed: 11/17/2022]
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18
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Enders MSP, de Souza JP, Balestrin P, Mello PDA, Duarte FA, Muller EI. Microwave-induced combustion of high purity nuclear flexible graphite for the determination of potentially embrittling elements using atomic spectrometric techniques. Microchem J 2016. [DOI: 10.1016/j.microc.2015.09.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Affiliation(s)
- Sheng Tang
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Hong Zhang
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Hian Kee Lee
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- National University of Singapore Environmental Research Institute, T-Lab Building #02-01, 5A Engineering
Drive 1, Singapore 117411, Singapore
- Tropical
Marine Science Institute, National University of Singapore, S2S, 18
Kent Ridge Road, Singapore 119227, Singapore
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20
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Arnquist IJ, Thomas MLP, Grate JW, Bliss M, Hoppe EW. A dry ashing assay method for the trace determination of Th and U in polymers using inductively coupled plasma mass spectrometry. J Radioanal Nucl Chem 2015. [DOI: 10.1007/s10967-015-4343-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Jia Y, Yu H, Wu L, Hou X, Yang L, Zheng C. Three Birds with One Fe3O4 Nanoparticle: Integration of Microwave Digestion, Solid Phase Extraction, and Magnetic Separation for Sensitive Determination of Arsenic and Antimony in Fish. Anal Chem 2015; 87:5866-71. [DOI: 10.1021/acs.analchem.5b00712] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Yun Jia
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Huimin Yu
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
| | - Li Wu
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Xiandeng Hou
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
- Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China
| | - Lu Yang
- Chemical
Metrology, Measurement Science and Standards, National Research Council Canada, Ottawa, Canada, K1A 0R6
| | - Chengbin Zheng
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China
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22
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Muller AL, Oliveira JS, Mello PA, Muller EI, Flores EM. Study and determination of elemental impurities by ICP-MS in active pharmaceutical ingredients using single reaction chamber digestion in compliance with USP requirements. Talanta 2015; 136:161-9. [DOI: 10.1016/j.talanta.2014.12.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Revised: 12/17/2014] [Accepted: 12/18/2014] [Indexed: 10/24/2022]
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23
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Analytical methods for the determination of halogens in bioanalytical sciences: a review. Anal Bioanal Chem 2013; 405:7615-42. [PMID: 23780223 DOI: 10.1007/s00216-013-7077-9] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2013] [Revised: 05/15/2013] [Accepted: 05/17/2013] [Indexed: 10/26/2022]
Abstract
Fluorine, chlorine, bromine, and iodine have been studied in biological samples and other related matrices owing to the need to understand the biochemical effects in living organisms. In this review, the works published in last 20 years are covered, and the main topics related to sample preparation methods and analytical techniques commonly used for fluorine, chlorine, bromine, and iodine determination in biological samples, food, drugs, and plants used as food or with medical applications are discussed. The commonest sample preparation methods, as extraction and decomposition using combustion and pyrohydrolysis, are reviewed, as well as spectrometric and electroanalytical techniques, spectrophotometry, total reflection X-ray fluorescence, neutron activation analysis, and separation systems using chromatography and electrophoresis. On this aspect, the main analytical challenges and drawbacks are highlighted. A discussion related to the availability of certified reference materials for evaluation of accuracy is also included, as well as a discussion of the official methods used as references for the determination of halogens in the samples covered in this review.
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