Article
Biochemistry & Molecular Biology
Shuang-Qing Zhang, Sui-Han Cheng, Shi Shen, Bi-Ying Luo, Yan Zhang
Summary: A new method was developed for quantifying Cr(III) and Cr(VI) in Chromium-enriched yeast, using ion chromatography-inductively coupled plasma mass spectrometry. Cr(III) and Cr(VI) were extracted using ultrasound-assisted weakly alkaline EDTA solution combined with boiling, and separated on two successive anion-exchange columns. The method was sensitive, accurate, and precise, with no Cr(VI) species found in CrY.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Chemistry, Analytical
I. Morales-Benitez, P. Montoro-Leal, J. C. Garcia-Mesa, M. M. Lopez Guerrerp, E. Vereda Alonso
Summary: A novel method for Cr(III) and Cr(VI) speciation in environmental samples was developed using magnetic nanoparticles coupled to graphene oxide. The method combined inductively coupled plasma optical emission spectrometry with on-line magnetic solid phase extraction. The synthesized sorbent material showed good performance with low detection limits and high enrichment factors. The developed method was successfully applied to analyze chromium speciation in environmental water samples, showing good agreement with certified values and high recoveries for spiked samples.
Article
Chemistry, Analytical
Suvi Kulomaki, Elmeri Lahtinen, Siiri Peramaki, Ari Vaisanen
Summary: A simple and sensitive method utilizing 3D printed metal scavenger for preconcentration and speciation of mercury species in water samples has been developed. By studying experimental parameters, MeHg and iHg concentrations in water samples were successfully determined with high analytical accuracy.
Article
Spectroscopy
Dan Zhou, Yao Lin, Haoqi Long, Yuwei Xu, Bo Wang, Liang Xian, Chuanqin Xia, Xiandeng Hou, Chengbin Zheng
Summary: A simple and effective system was developed for speciation analysis of 99Tc, which showed advantages in reducing sample consumption, improving sensitivity, and saving radioactive waste.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
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
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
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
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
Environmental Sciences
Sezin Erarpat, Cansu Demir, Miray Oner, Sezgin Bakirdere
Summary: A hyphenated instrumental method combining HPLC and ICP-OES was developed for the precise determination of Cr(III) and Cr(VI) in soil, grass, and water samples. The method showed high accuracy and applicability.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
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
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)