Article
Biochemical Research Methods
Shaun T. Lancaster, Thomas Prohaska, Johanna Irrgeher
Summary: This study proposes the use of nitrous oxide (N2O) as a non-corrosive and non-toxic alternative for calcium isotope analysis. Instrument performance testing shows that N2O can achieve equivalent detection limits and background concentrations compared to traditional gases. Further testing with synthetic standards highlights N2O's advantage in separating interferences from potassium and magnesium.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2022)
Article
Food Science & Technology
Hong-lin Liu, Qing Meng, Xin Zhao, Yu-long Ye, Hua-rong Tong
Summary: The study utilized multi-element and stable isotopes analysis combined with chemometrics to establish a model for discriminating the authenticity of teas, and through validation and testing, confirmed the high accuracy and feasibility of this method in identifying the authenticity of teas.
Article
Chemistry, Analytical
Ka-Him Chun, Judy Tsz-Shan Lum, Kelvin Sze-Yin Leung
Summary: This study demonstrates the successful dual-mass measurement of individual particles using quadrupole-based ICP-MS, achieving high particle recovery rate, precision, and accuracy. The technique was further applied to determine elemental content, isotope ratios, and study cell viability, showing comparable results to existing TOF and multi-collector ICP-MS methods.
ANALYTICA CHIMICA ACTA
(2022)
Article
Spectroscopy
Benjamin T. Manard, Debra A. Bostick, Shalina C. Metzger, Brian W. Ticknor, N. Alex Zirakparvar, Kayron T. Rogers, Cole R. Hexel
Summary: The study introduces an automated approach for elemental analysis of a large group of uranium ore concentrate samples. Through purification and analysis using ICP-OES/TQMS, the method demonstrated efficiency and validity by comparing trace impurities of reference samples. The results showed excellent correlation with previously reported data, especially in the context of existing geochemical comparison tools.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
C. Derrick Quarles, Patrick Sullivan, Nick Bohlim, Nathan Saetveit
Summary: This study presents two fast and reliable separation methods for arsenic compounds. The recovery rate of both methods falls between 94% and 107%, and the accuracy was evaluated by analyzing proficiency samples. The detection limits in urine matrix for the two methods ranged from 2.8-6.0 ng L-1 As and 4.1-9.1 ng L-1 As, respectively.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
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
Biochemistry & Molecular Biology
Liang Fu, Hualin Xie, Jianhua Huang, Lin Chen
Summary: The study investigated the feasibility of using ICP-MS/MS to determine non-metallic elements in herbal tea, with O-2 and H-2 as reaction gases in MS/MS mode. The developed method successfully analyzed 20 herbal teas, showing a range of values for Si, P, S, Cl, Br, and I, indicating the potential health benefits of drinking herbal tea containing essential non-metallic elements.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Spectroscopy
Marketa Hola, Karel Novotny, Jan Dobes, Ivo Krempl, Vojtech Wertich, Juraj Mozola, Martin Kubes, Veronika Faltusova, Jaromir Leichmann, Viktor Kanicky
Summary: The study demonstrated the great potential of combining LIBS and LA-ICP-MS imaging techniques, providing advantages of high speed, large area imaging, high resolution, and low detection limits. A special software, ILAPS, was created to ensure data processing consistency, effectively identifying structures responsible for elements migration in uranium ore samples.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Xiaoyun Li, Xiaomei Wang, Jing Zhou, Zi-Jian Li, Linjuan Zhang, Jian-Qiang Wang
Summary: A self-made reference material containing 100 μg/g of U and Th was prepared by using gelatin plus standard solution, overcoming the inhomogeneity issue of the raw animal tissue standard. A fast and reliable LA-ICP-MS quantitative imaging method was developed, and elemental spatial distribution in kidney and liver tissues from mice was revealed. The results showed that U accumulated mainly in the kidney and slightly in the liver, while most of Th was distributed in the liver and only a small amount in the kidney. Heterogeneous distribution of U and Th was observed in kidney section, while a homogeneous distribution was observed in liver section.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2023)
Article
Chemistry, Analytical
Annika Schardt, Johannes Schmitt, Carsten Engelhard
Summary: In this proof-of-principle study, a new data acquisition system with nanosecond time resolution (nanoDAQ) and a matching data processing approach were developed for single particle inductively coupled plasma mass spectrometry (spICP-MS). The system can detect gold nanoparticles as small as 7.5 nm and acquire a statistically significant number of data points in a short time.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Analytical
Thomas E. Lockwood, Mika T. Westerhausen, Philip A. Doble
Summary: Open-sourced software is crucial in the field of mass spectrometry imaging, and Pew2 is a specific and feature-rich open-source image processing software for LA-ICP-MS, designed to be fast, user-friendly, and in line with modern visualization philosophies.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Claude Degueldre
Summary: The study proposes adapting the SP-ICP-MS method for identification and counting of single viruses, with analysis and identification achieved through counting of master and key ions. The counting of virus units can be completed in 20 seconds, with analysis of main and key ions recommended to be carried out in Ar torch.
Article
Chemistry, Multidisciplinary
Shuji Yamashita, Shin-ichi Miyashita, Takafumi Hirata
Summary: Single particle inductively coupled plasma mass spectrometry was used to measure the size of individual nanoparticles. Two calibration approaches, particle size standard and ion standard solution, were evaluated for their uncertainties in size analysis. The relative uncertainties for 50 nm silver nanoparticles using particle size standards of 30 nm, 60 nm, and 100 nm were 15.0%, 9.9%, and 10.8% respectively. For the ion standard solution approach, the relative uncertainties for the 50 nm silver nanoparticles in solutions of 1 ng/g, 10 ng/g, and 100 ng/g were 18.5%, 7.6%, and 4.7% respectively. A high concentration working standard solution is recommended to improve precision on particle size determinations by spICP-MS.
Article
Chemistry, Analytical
Kristian von Wuthenau, Torben Segelke, Anita Kuschnereit, Markus Fischer
Summary: Counterfeiting is a widespread issue in industries like cosmetics and art, especially with expensive perfumes and valuable artworks. A study using laser ablation-inductively coupled plasma mass spectrometry successfully differentiated glass from different production sites, offering a new method for detecting counterfeits.
Article
Food Science & Technology
Mariana Baptistao, Rodolfo Lorencatto, Marcos Nogueira Eberlin, Ana Valeria Colnaghi Simionato
Summary: A method using ICP-MS was developed and validated to analyze the elemental composition of urucum seeds. It was found that elements such as Ca, Mg, and K were present in higher levels, while elements like Al, Ba, Co, Cu, Fe, Mn, Mo, Ni, and Zn were present in lower concentrations. Statistical analysis revealed correlations between certain elements and the uneven distribution of Mo in the samples, potentially caused by soil treatment. This study provides useful information for future research on nutritional composition and farming procedures.
FOOD AND BIOPROCESS TECHNOLOGY
(2023)