Article
Chemistry, Analytical
Qing Yang, Hanjiao Chen, Jing Hu, Ke Huang, Xiandeng Hou
Summary: Efficient simultaneous photochemical vapor generation (PVG) of ruthenium (Ru) and osmium (Os) in formic acid medium was demonstrated, with impressive limits of detection achieved for both elements. The synergistic enhancement from cobalt and cadmium ions on PVG efficiency was discovered, and the accuracy of the proposed PVG-ICP-MS method was validated through analysis of water samples. Additionally, volatile compounds of Ru were trapped and generation of Ru carbonyls was verified by high-resolution ESI-MS.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: By combining ICP OES with a novel FIGA mode, a more sensitive determination of Hg was achieved. The proposed method showed a much higher analytical signal for Hg compared to conventional PN-ICP OES, resulting in a significantly improved detection limit (0.035 μg/L) and measurement precision (2.5%). It also offered a 4 times lower detection limit compared to CVG-ICP OES (0.15 μg/L).
Article
Chemistry, Analytical
Krzysztof Greda, Maja Welna, Anna Szymczycha-Madeja, Pawel Pohl
Summary: The technique of vapor generation assisted by a microplasma improves the sensitivity and reduces the detection limits in ICP OES. The microplasma system produces higher analyte fluxes and less water vapor, resulting in boosted signal intensities. The method is characterized by higher resistance to matrix effects and eliminates the use of toxic reductants.
Article
Optics
Jinhai Sun, Yan Zheng, Jielin Shi, Yarui Zhao, Yu Li, Ding Wu, He Cai, Xutao Zhang, Xianli Zhu, Yongqiang Liu, Xinxue Sun, Zengming Chao, Hongcheng Yin, Wenqi Lu, Hongbin Ding
Summary: The electron density distribution of inductively coupled plasma (ICP) was measured using laser Thomson scattering (TS) method and simulated using finite element method (FEM). The accuracy of the ICP generation simulation model was verified by comparing the simulated and experimental results. The propagation characteristics of terahertz wave in ICP were measured using terahertz time domain spectroscopy (THz-TDS) and calculated using FEM, showing high consistency between experimental and simulation results. This further proves the accuracy of the terahertz wave transmission model in plasma and the feasibility of joint simulation with ICP generation simulation model.
Article
Chemistry, Analytical
Melissa Gilbert, Peng Ho, Laura Whitmore, Alan Shiller
Summary: There is a growing interest in dissolved gallium (Ga) in natural waters for tracking water masses, but current analytical methods are time-consuming and labor-intensive. In this study, an automated isotope dilution method was developed to determine Ga in seawater using commercially available equipment. The method addressed challenges such as sample volume and pre-concentration, instrumental interferences, sample carryover, sample recovery variability, and improved detection limits, accuracy, and precision. The new automated method showed comparable Ga concentrations to traditional methods but with greater precision and a lower detection limit.
ANALYTICA CHIMICA ACTA
(2023)
Article
Chemistry, Analytical
Emmanouil Mavrakis, Spiros A. Pergantis
Summary: Microfluidics coupled with ICP-MS allows for powerful quantitation procedures utilizing internal standardization and standard additions, improving determination accuracy for various sample types. The efficient coupling of microfluidic chip to ICP-MS system using a combination of commercially available components enables highly sensitive detection of metal isotopes with minimal sample consumption. High average recoveries and low relative standard deviations were achieved for determined elements across multiple matrices, showcasing the advantages of this newly developed chip-based microfluidic SDA ICP-MS technique.
ANALYTICA CHIMICA ACTA
(2021)
Review
Chemistry, Multidisciplinary
Kate Moghadam, Diane Beauchemin
Summary: To analyze trace evidence at crime scenes, non-destructive or low-sample analysis techniques are preferred. One such technique is solid sampling ETV-ICPOES, which requires only a small amount of sample. This article discusses the capabilities of ETV-ICPOES in forensic analysis and presents various methods for analyzing physical evidence. Internal standardization and multivariate analysis are used to compensate for sample loading effects and enable quantification and discrimination of evidence. The article also explores future perspectives for utilizing ETV-ICPOES in forensic settings.
CHEMICAL COMMUNICATIONS
(2023)
Article
Materials Science, Coatings & Films
Kei Kiyokawa, Reiko Saito, Masato Morita, Tetsuo Sakamoto
Summary: This article investigates the impact of metal redeposition on the sputtering rate in ion sputtering and finds that redeposition significantly enhances the rate. The experimental data align with the model equation, explaining the sputtering by desorbed redeposited metal and the reduction of sublimation enthalpy by adsorbed redeposited metal. This finding provides new insights for the application of sputtering technology.
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A
(2022)
Article
Spectroscopy
Kaitlyn J. Suski, David M. Bell, Matt K. Newburn, M. Liz Alexander, Dan Imre, David W. Koppenaal, Alla Zelenyuk
Summary: Laser ablation inductively coupled plasma mass spectrometry is a powerful technique for trace element analysis of solid samples, but its full quantitative capability is limited by the complex relationships between various factors. Altering laser ablation conditions can effectively change the physicochemical properties of LA-generated particles and improve the understanding of their impact on corresponding ICPMS signals. This multidimensional particle characterization approach can comprehensively study LA-generated particles and their effects on ICPMS signals, with potential for extension to other samples and laser wavelengths.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Review
Chemistry, Analytical
Daniel Torregrosa, Guillermo Grindlay, Luis Gras, Juan Mora
Summary: ICP-MS is commonly used in life sciences for element content and speciation studies, but can also serve as a detector for immunoassays. Despite its advantages such as high sensitivity, multiplexed capabilities, and robustness, immunoassays based on ICP-MS detection are not well-known and lack significant breakthroughs in routine clinical applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Analytical
E. Mavrakis, Z. Toprakcioglu, N. Lydakis-Simantiris, T. P. J. Knowles, S. A. Pergantis
Summary: As the use of microfluidic chips for biological samples handling increases, there is a growing demand to combine them with powerful analytical techniques such as ICP-MS. This study demonstrates the successful coupling of a chip-based supersonic microfluidic nebulizer to an ICP-MS through the use of a spray chamber with a laminar flow makeup gas. The system shows promising performance in single-particle and single-cell analysis.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Juan Jose Lopez-Mayan, Sergio del-Angel-Monroy, Elena Pena-Vazquez, Maria Carmen Barciela-Alonso, Pilar Bermejo-Barrera, Antonio Moreda-Pineiro
Summary: This study developed a method for isolating and determining background levels of titanium dioxide nanoparticles in seaweed, demonstrating good stability and accuracy through validation experiments.
Article
Biochemical Research Methods
Freja Gronbaek-Thorsen, Rikke Holck Hansen, Jesper Ostergaard, Bente Gammelgaard, Laura Hyrup Moller
Summary: In this study, a method based on CE-ICP-MS was established for analysis of selenium NPs and dissolved Se species in aqueous media. The analysis of a commercially available SeNP suspension revealed large amounts of selenite indicating NP degradation upon storage. The method was modified to analyze SeNPs in human plasma, demonstrating degradation of PVA-coated SeNPs to selenite.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Liang Dong, Hanjiao Chen, Yongyan Ning, Yaowen He, Ying Yu, Ying Gao
Summary: Photochemical vapor generation (PVG) is an alternative sample introduction method in atomic spectrometry, and the addition of transition metals can enhance its efficiency. This study introduced vanadium species as novel sensitizers in PVG and applied it for the determination of tellurium.
ANALYTICAL CHEMISTRY
(2022)
Article
Environmental Sciences
Qian Zhang, Yang Li, Hua Li, Yuhan Zhang, Lishan Zhang, Shan Zhong, Xiaohua Shu
Summary: Fe-based composites have been studied extensively for their ability to improve energy utilization efficiency in plasma-based contaminant removal. However, the slow transformation of Fe(III) to Fe(II) compromises the energy efficiency and catalytic activity. In this study, FeS2 was introduced into a glow discharge plasma reactor to enhance the removal efficiency of tylosin. The presence of FeS2 resulted in increased generation of radicals and nonradicals, which played a critical role in tylosin abatement. Additionally, the electron-donating ability of FeS2 accelerated the conversion of Fe(III) to Fe(II), further facilitating radical generation. Furthermore, FeS2 promoted acid solution self-adjustment and improved the heterogeneous Fenton reaction and adsorption of tylosin. The integration of glow discharge plasma with FeS2 offers a promising technique for organic wastewater treatment.
Article
Biochemical Research Methods
Johanna Irrgeher, Thomas Berger, Anastassiya Tchaikovsky, Cornelius Tschegg, Ghazaleh Gouya, Peter Lechner, Anika Retzmann, Christine Opper, Christa Firbas, Michael Freissmuth, Kerstin Peschel-Credner, Karolina Anderle, Claudia Meisslitzer, Michael Wolzt, Thomas Prohaska
Summary: This article presents an analysis method for Pb isotope pattern deconvolution using enriched Pb-204 as a tracer to monitor trace levels of Pb within the human body. The method overcomes the limitations of using natural lead as a tracer and allows for the calculation of isotope pattern from measured isotope ratios without knowing the quantities of different isotope sources.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Biochemical Research Methods
Simone Trimmel, Thomas C. Meisel, Shaun T. Lancaster, Thomas Prohaska, Johanna Irrgeher
Summary: This article analyzed the mass fractions of 48 elements in seven plant certified reference materials using ICP-MS/MS. The focus was on the determination of technology-critical elements (TCEs) and rare-earth elements (REEs). The article aims to provide an optimized measurement procedure for determining the element mass fractions of emerging importance in environmental samples, as well as to improve the characterization of commonly used plant reference materials by providing mass fraction data for rarely studied elements.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2023)
Article
Chemistry, Analytical
Ryoga Maeda, Thibaut Van Acker, Frank Vanhaecke, Akira Yamaguchi, Vinciane Debaille, Phillippe Claeys, Steven Goderis
Summary: This study applied the fast elemental mapping technique LA-ICP-TOF-MS to analyze chondritic meteorite samples. The technique allows for the visualization of element distribution maps at sub-micrometer spatial resolution and semi-quantitative analysis of major and trace elements. The accuracy and precision of this method were compared to conventional spot analysis methods, and good agreement was found. However, there are limitations to LA-ICP-TOF-MS mapping, such as limited ablated yield when using a small laser spot size and lower sensitivity compared to LA-ICP-SF-MS.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Fisheries
Andreas Zitek, Johannes Oehm, Michael Schober, Anastassiya Tchaikovsky, Johanna Irrgeher, Anika Retzmann, Bettina Thalinger, Michael Traugott, Thomas Prohaska
Summary: The potential of otolith microchemistry as a fishery management tool for different European freshwater fish species in an Alpine foreland was assessed in this study. Water samples from 26 habitat sites in a pre alpine catchment region were analyzed to determine the 87Sr/86Sr isotope ratios and Sr/Ca ratios, and 246 fish from 16 species were studied to determine the Sr/Ca ratios in otoliths. The study found that otolith microchemistry, when combining the 87Sr/86Sr and Sr/Ca ratios, has great potential to serve as a fishery management tool at smaller spatial scales.
FISHERIES RESEARCH
(2023)
Article
Biology
Kasper Hobin, Marta Costas-Rodriguez, Elien Van Wonterghem, Roosmarijn E. Vandenbroucke, Frank Vanhaecke
Summary: Alzheimer's disease is associated with protein aggregations and altered copper metabolism. Two ICP-MS analysis techniques were used to determine the copper concentration and isotope ratio in blood plasma and brain regions of Alzheimer's mice. The concentration of copper in blood plasma was significantly altered in response to age and Alzheimer's-related effects, while the isotope ratio was affected by Alzheimer's disease only. Both the brain stem and cerebellum showed changes in copper concentration and isotope ratio. The determination of copper concentration and isotope ratio is relevant for understanding the role of copper in aging and Alzheimer's disease.
Article
Nanoscience & Nanotechnology
Christy Maksoudian, Mukaddes Izci, Robbe Salembier, Irati Perez Gilabert, Filipa Roque Goncalves, Carla Rios Luci, Eduardo Bolea-Fernandez, Frank Vanhaecke, Bella B. Manshian, Stefaan J. Soenen
Summary: This study investigates the impact of modulating three factors in the tumor microenvironment on the delivery of gold nanoparticles. It was found that removal of tumor-associated macrophages (TAMs) can improve tumor vasculature maturity, but does not significantly affect nanoparticle delivery. On the other hand, reducing hypoxia and breaking down extracellular matrix (ECM) can significantly improve nanoparticle delivery.
ACS APPLIED NANO MATERIALS
(2023)
Article
Geochemistry & Geophysics
Ryoga Maeda, Steven Goderis, Akira Yamaguchi, Thibaut Van Acker, Frank Vanhaecke, Vinciane Debaille, Phillippe Claeys
Summary: The chemical effects of terrestrial alteration were studied on a set of H chondrites, focusing on lithophile trace elements. It was found that rare earth elements, thorium, and uranium accumulate in cracks observed in weathered meteorite specimens. These features are interpreted to have been caused by terrestrial weathering following chemical leaching. However, the overall effects on the bulk chemical composition remain limited.
METEORITICS & PLANETARY SCIENCE
(2023)
Article
Archaeology
Paulina Biernacka, Wim De Clercq, Stijn Dewaele, Frank Vanhaecke, Johan De Grave
Summary: Archaeological research at Hoeke, a Late Medieval outer harbour of Bruges in Belgium, has uncovered significant quantities of iron slags, fuel, and other remnants of iron working. This study provides new insights into the historic iron working process that was previously unknown in one of medieval Europe's largest economic hubs.
SCIENCE AND TECHNOLOGY OF ARCHAEOLOGICAL RESEARCH
(2023)
Article
Chemistry, Analytical
Pelayo Alvarez Penanes, Marta Costas-Rodriguez, Mariella Moldovan, Jose Ignacio Garcia Alonso, Frank Vanhaecke
Summary: This study evaluated the Cu isotopic composition of Cu ores from three important mining centers in Northwest Spain during the Copper and Early Bronze Age. The results showed high variability in Cu isotope ratios within the same mines and an overlap in ranges between different mines. The potential application of ore Cu isotopic composition for archaeological studies is strongly undermined by intra-mine variability, as demonstrated by the comparison with archaeological samples previously assigned to these mines based on their Pb isotopic signature.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Multidisciplinary
Lyndsey Hendriks, Robert Bruenjes, Sara Taskula, Jovana Kocic, Bodo Hattendorf, Garret Bland, Gregory Lowry, Eduardo Bolea-Fernandez, Frank Vanhaecke, Jingjing Wang, Mohammed Baalousha, Marcus von der Au, Bjoern Meermann, Timothy Ronald Holbrook, Stephan Wagner, Stasia Harycki, Alexander Gundlach-Graham, Frank von der Kammer
Summary: This study conducted an interlaboratory comparison to evaluate and validate the SOP for sp-ICP-TOFMS. Two Pt NP suspensions were characterized and showed good agreement among participating labs in terms of particle mass. However, the particle number concentration results were more scattered. The study also discussed the potential for particle density determination and assessed the precision and trueness of isotope ratio determinations.
Article
Anthropology
IJk van Hattum, Marta Costas-Rodriguez, Kasper Hobin, Frank Vanhaecke, Hans Vandendriessche, Helene Collet, Pierre Cattelain, Michel Toussaint, Quentin Goffette, Maarten Dhaenens, Jessica L. A. Palmer, Simon Daled, Philippe Crombe, Isabelle De Groote
Summary: This study examines the mobility of individuals in the Neolithic period in Belgium and finds evidence of four nonlocal individuals based on the strontium isotope ratios in their dental enamel. The results support the hypothesis of connections with Northern France.
AMERICAN JOURNAL OF BIOLOGICAL ANTHROPOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Kaj Sullivan, Rebekah E. T. Moore, Frank Vanhaecke
Summary: The application of high-precision isotopic analysis in biomedicine has revealed the alteration of stable isotopic compositions of essential mineral elements in relation to metal dysregulation, which is fundamental to the pathogenesis of cancers and other diseases. This article summarizes the available evidence regarding physiological and lifestyle factors that may or may not influence the variations in essential mineral element isotopic compositions in human subjects. Factors such as sex, menopausal status, age, diet, supplementation, genetic variation, and obesity have been shown to influence the isotopic composition of at least one essential mineral element in the human body.
Article
Chemistry, Analytical
Thibaut Van Acker, Ana Rua-Ibarz, Frank Vanhaecke, Eduardo Bolea-Fernandez
Summary: In this study, laser ablation was investigated as a method for introducing microplastic particles into an inductively coupled plasma for monitoring using a mass spectrometer. Different types and sizes of microplastic particles were successfully introduced intact. The laser energy density did not affect particle sampling, and better performance was observed with a smaller laser beam diameter and a higher repetition rate. The C-13(+) signal intensity showed a linear correlation with the absolute carbon mass, and the linear range could be extended by using helium. Laser ablation generated narrower signal distributions compared to the traditional solution-based approach and was successful for analyzing mixed suspensions and sampling microplastic particles from filters.
ANALYTICAL CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Dominika Berdecka, Manon Minsart, Tao Lu, Deep Punj, Riet De Rycke, Mina Nikolic, Eduardo Bolea-Fernandez, Frank Vanhaecke, Ranhua Xiong, Stefaan C. De Smedt, Peter Dubruel, Winnok H. De Vos, Kevin Braeckmans
Summary: Cell therapies often require modification of cells with external substances to enhance their therapeutic effectiveness. The study investigates the potential of using PEN photoporation to deliver macromolecules into unstimulated T cells. The results show that PEN treatment has minimal impact on T cell proliferation and activation, making it a promising and safe delivery strategy for genetic modification of minimally differentiated T cells.
APPLIED MATERIALS TODAY
(2023)
Article
Materials Science, Multidisciplinary
Omar Martinez-Mora, Luis F. Leon-Fernandez, Milica Velimirovic, Frank Vanhaecke, Kristof Tirez, Jan Fransaer, Xochitl Dominguez-Benetton
Summary: The development of high-performance electrocatalysts is crucial for improving the performance and commercial viability of direct methanol fuel cells (DMFCs). This study utilized the gas-diffusion electrocrystallization process (GDEx) to synthesize platinum nanoclusters (NCs) stabilized by polyvinylpyrrolidone (PVP). The electrocatalytic activity of the Pt NCs for methanol oxidation was successfully evaluated, with PVP-stabilized GDEx-made Pt NCs demonstrating superior performance due to their porous structure and high effective surface area.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Analytical
Michelle Buoso, Beatrice Campanella, Massimo Onor, Emanuela Pitzalis, Alessandro D'Ulivo
Summary: The use of BH intermediates as derivatization reagents significantly improves the tolerance to interference from transition metal ions in the generation of SbH3 and BiH3, and shows high tolerance in a wide range of acidity. The method has been successfully applied to the determination of Sb and Bi in complex samples, providing further understanding of the chemical behavior of borohydrides.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Article
Chemistry, Analytical
Chao-Feng Li, Xuan-Ce Wang, Zhu-Yin Chu, Peng Peng
Summary: Thermal ionization mass spectrometry (TIMS) is the standard method for obtaining precise Sr-87/Sr-86 isotopic ratios. However, our developed hydrofluoric acid coprecipitation method offers a low-cost, rapid, simple, and high-throughput alternative for analyzing red wine samples, effectively eliminating isobaric interference and matrix element inhibition.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Article
Chemistry, Analytical
Ivan B. Krstic, Bratislav M. Obradovic, Milorad M. Kuraica
Summary: This paper presents the spatio-temporal dynamics of a Grimm-type microsecond pulsed glow discharge (mu PGD) in argon at 6 mbar. The occurrence of a high current peak during the discharge ignition is analyzed and the importance of displacement current is emphasized. The development of electron excitation temperature for argon atoms and ions at various distances from the cathode is measured. The spatio-temporal evolution of selected spectral lines of argon and copper atoms and ions is analyzed during different phases of the discharge. The results suggest that the behavior of spectral line emissions differs between the pre-peak and afterglow periods, with different lines reaching maximum intensity during these phases. The appearance time and decay time of the afterpeak are shorter for ions than for atoms. These findings are explained in terms of three-body recombination processes and ion mobilities.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Article
Chemistry, Analytical
Qiuyun Wang, Anmin Chen, Xun Gao
Summary: In this paper, the combination of Tesla coil discharge (TCD) and laser-induced breakdown spectroscopy (LIBS) was used to enhance the emission of Al atomic lines and AlO molecular bands. The optimized distance between the TCD tip and the sample surface was found to be 5 mm, and the optimal laser energy was 25.1 mJ. Furthermore, TCD-SELIBS showed lower limits of detection (LoDs) for Cr and Pb elements compared to surface enhanced LIBS (SELIBS). The combination of TCD and LIBS is a promising technology for high-sensitivity analysis of heavy metals in water, with the advantages of simplicity, low cost, ease of operation, industrialization, and commercialization.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
Article
Chemistry, Analytical
Yanwen Tang, Tingguang Lan, Jianfeng Gao, Zhongjie Bai, Xiaowen Huang, Junjie Han, Na Liu
Summary: Titanium is an important metal widely used in various industries. Ilmenite minerals are the main source of titanium metal and can be found in igneous and metamorphic rocks as well as different types of deposits. To accurately determine U-Pb ages of ilmenite, a new calibration method and appropriate reference materials are urgently needed. Laser ablation sector field inductively coupled plasma mass spectrometry has been used to minimize matrix effects and zircon 91500 has been identified as a suitable reference material for measuring the Pb/U ratio in ilmenite. The direct calibration method using zircon 91500 as an external standard has been found to be effective for in situ U-Pb dating of ilmenite samples under different ablation settings.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2024)
