Article
Chemistry, Multidisciplinary
Maite Aramendia, Diego Leite, Javier Resano, Martin Resano, Kharmen Billimoria, Heidi Goenaga-Infante
Summary: This paper presents a methodology based on isotope dilution for the mass determination and sizing of silver nanoparticles using single-particle ICP-TOFMS. The proposed method measures NP isotope ratios in a particle-to-particle approach, allowing for the characterization of NP mass and size distributions. The method optimization for precision and accuracy included the selection of spike isotopic composition and concentration.
Review
Chemistry, Multidisciplinary
Philip A. Doble, Raquel Gonzalez de Vega, David P. Bishop, Dominic J. Hare, David Clases
Summary: Elemental imaging provides insights into the chemical composition of living organisms, with potential applications in understanding disease states. Laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) has emerged as a principal elemental imaging technique for biologists.
Article
Spectroscopy
Naoki Shirai, Yuta Yokozuka, Saki Terai, Rahat Khan, Mitsuru Ebihara
Summary: A method for accurately determining Pb and Bi contents in geochemical and cosmochemical solid samples using ICP-QMS is described. The accuracy of the method is validated by analyzing reference samples, and the obtained results are in good agreement with literature values.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Xiaotong Ding, Wenting Bu, Youyi Ni, Xuepeng Shao, Ke Xiong, Chuting Yang, Sheng Hu
Summary: A method was developed for precise measurement of REEs in uranium ore samples, showing consistent results within the same type of ore samples and significant variations among different types. The distribution patterns of REEs in uranium ore samples could potentially serve as unique fingerprints for source identification of related nuclear materials.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Spectroscopy
Yang Cao, Yinghui Wu, Zihui Liu, Qinshu Kang, Hongkui Wei, Jian Peng, Shengqing Li
Summary: Trace elements play a crucial role in the spermatogenesis, maturation, and fertilization of sperm. In this study, a simple method using time resolved inductively coupled plasma mass spectrometry (ICP-MS) was developed to accurately determine trace elements in single boar's sperm cells. The method provides valuable information for evaluating the quality of boar semen and has potential applications in studying sperm signal transduction and relevant physiological topics.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Tomohiro Narukawa, Toshihiro Suzuki, Satoki Okabayashi, Koichi Chiba
Summary: An online internal standard correction technique using an autosampler system equipped with HPLC was developed to enhance the precision of HPLC-ICP-MS analysis. The autosampler sequentially takes up sample solutions, rinses the nozzle, uses air as a spacer, and injects the internal standard solution into a sampling loop. The application of this technique improved the repeatability of 20 μL sampling from 2.5% to 1.2% and effectively improved the analytical precision of arsenic speciation.
ANALYTICAL METHODS
(2023)
Article
Chemistry, Analytical
Haolin Bao, Xiuhong Peng, Zelin Song, Yongyan Ning, Ying Yu, Ying Gao
Summary: The study found that the natural mineral vanadic titanomagnetite tailing can enhance the sensitivity of elements in photochemical vapor generation (PVG) and is more stable compared to commercial nano-Fe3O4. This research is important for developing novel catalytical materials in PVG and understanding the environmental impact of tailings on ecological environment.
MICROCHEMICAL JOURNAL
(2021)
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)
Article
Chemistry, Analytical
Eva Jenikova, Eliska Novakova, Jakub Hranicek, Stanislav Musil
Summary: Photochemical vapor generation (PVG) of Te4+ was achieved using a simple reactor and investigated for its application in the determination of Te in water samples. The study explored the composition of the reaction medium, the irradiation time, and the effects of sensitizers and interferents. The results showed that PVG could be used for sensitive determination of Te in water samples under optimized conditions.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Chemical
Maria Luisa Astolfi, Domenico Ginese, Riccardo Ferrante, Elisabetta Marconi, Anna Maria Girelli, Silvia Canepari
Summary: A new online procedure for the determination of trivalent and hexavalent chromium in liquid samples using a specially designed contactor was developed. The method showed good analytical performance in real samples and comparable results to synthetic standard solutions.
Article
Chemistry, Analytical
Kayo Yanagisawa, Mizuki Odashima, Makoto Matsueda, Makoto Furukawa, Yoshitaka Takagai
Summary: In this study, a method for simultaneous quantification of radioactive Sr-90 and natural Sr was successfully developed by combining online solid-phase extraction-mass spectrometry with the isotope dilution method. This method allows for the quantification of 90Sr even in the presence of isobaric Zr-90, and has a low detection limit and good recovery rates.
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
Chemistry, Analytical
Slobodan V. Jovanovic, Tara Kell
Summary: The 6th Collaborative Materials Exercise, CMX-6, organized by the Nuclear Forensic International Technical Working Group, aimed to enable nuclear forensic laboratories to practice their capabilities under a realistic scenario and share their experience. The use of laser ablation triple quadrupole inductively coupled plasma mass spectrometry was presented for the examination of uranium and plutonium contaminated materials in CMX-6, with similarity or dissimilarity of exercise samples established through trace element analysis and uranium and plutonium isotope ratio measurements.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2021)
Article
Biochemistry & Molecular Biology
Yeon-hee Kim, Wook-jin Ra, Solyi Cho, Shinai Choi, Bokyung Soh, Yongsung Joo, Kwang-Won Lee
Summary: This study validated an analytical method for determining thallium in foods by ICP-MS, and found that thallium levels in most foods in the South Korean market were below the health guidance level.
Article
Agriculture, Multidisciplinary
Xianjiang Li, Wen Ma, Qinghe Zhang, Hongmei Li, Huwei Liu
Summary: A simple and reliable extraction method for the determination of patulin in apple juice has been developed using amine-functionalized polymeric solid-phase extraction cartridges. Isotope dilution liquid chromatography tandem mass spectrometry was utilized to minimize matrix effects and ensure reliable quantification. Results showed negligible matrix effects and satisfactory sensitivity, providing a promising method for routine quality control in patulin detection.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2021)
Review
Instruments & Instrumentation
Ziyan Li, Rui Liu, Yi Lv
Summary: This review discusses the progress of ICPMS in multiplex bioassay, including various biomarkers and methodological innovations. The limitations are summarized and prospects are proposed for the emergence of more powerful and application-oriented analytical methods.
APPLIED SPECTROSCOPY REVIEWS
(2023)
Article
Chemistry, Multidisciplinary
Chaoqun Wang, Ziqiang Deng, Hu Zhang, Rui Liu, Yi Lv
Summary: Magnetic particles (MPs) are widely used in various biological applications, and this study discovered a novel function of commercialized MPs-internal standard for accurate quantification of biomolecules. The proposed MPs-based immunoassay greatly improves the accuracy and precision by eliminating potential MPs loss and intensity fluctuations during magnetic separation.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Analytical
Chaoqun Wang, Hongjie Song, Xin Zhao, Rui Liu, Yi Lv
Summary: Biomimetic DNA walking machines have shown success in exploring the microscopic world and sensitive biosensing of disease biomarkers. This study presents multiplexing three-dimensional DNA walking machines for lung cancer-associated miRNA detection based on HR-ICPMS, demonstrating satisfactory analysis capabilities for complex biological samples.
ANALYTICAL CHEMISTRY
(2022)
Article
Spectroscopy
Ziqiang Deng, Jianyu Hu, Rui Liu, Yi Lv
Summary: The CRISPR/Cas biosensing method proposed in this study allows for highly sensitive and specific detection of Tobramycin (TOB) through the combination of aptamer recognition and element labeling strategy. This method has been successfully applied in the analysis of actual water samples.
ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Rui Liu, Gaoyi Yi, Baian Ji, Xiuqiong Liu, Yuanqi Gui, Zhining Xia, Qifeng Fu
Summary: In this study, metal-organic frameworks (MOFs) were explored as novel support materials with good enzyme immobilization performance and stationary phases with excellent separation abilities to construct a high-efficiency online enzyme assay system. The UiO-66-NH2-modified capillary exhibited superior enzyme immobilization, substrate affinity, and stability compared to traditional methods. The developed method was successfully applied to detect organophosphorus pesticides in leguminous vegetable samples, demonstrating its practicality.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Jing Zhou, Ziyan Li, Jianyu Hu, Chaoqun Wang, Rui Liu, Yi Lv
Summary: In this study, a sensitive lanthanide-labelled ICPMS method was proposed for DNA methylation analysis. The method effectively distinguished methylated DNA using the specific recognition of 8-oxo-G/5mC base pairs by hOGG1. Comparing with nucleic acid amplification strategies, this method is time-saving and has low probability of false positive. The validation in human serum samples demonstrated its potential application in clinical and biological samples quantitative analysis.
Article
Chemistry, Analytical
Min Jiang, Jing Zhou, Xiaobo Xie, Zili Huang, Rui Liu, Yi Lv
Summary: This study established a novel nanoparticle counting strategy to simultaneously analyze three breast cancer-associated miRNAs for breast cancer diagnosis. The strategy showed great potential for cancer diagnosis with high sensitivity.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yongcheng Dai, Jing Zhou, Chudong Wei, Li Chai, Xiaobo Xie, Rui Liu, Yi Lv
Summary: This study established a multiplexing LC-MS workflow for simultaneous detection of nitric oxide (NO) and various metabolites in cells. The method, based on a novel iridium signature mass spectrometric probe, showed high accuracy and sensitivity in detecting NO. It also revealed the effects of different NO concentrations on cellular metabolites.
ANALYTICAL CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Sirui Pu, Hongjie Song, Lichun Zhang, Yingying Su, Rui Liu, Yi Lv
Summary: This study investigates the catalytic performance of different defective UiO-66 materials in ozone degradation. Ligand defects are found to be crucial for the catalytic degradation and luminescence of ozone. The presence of hydroxyl groups in the material and external humidity affect the catalytic performance. The study also proposes potential reaction pathways for ozone adsorption on defective UiO-66 under dry or wet conditions. Additionally, a highly efficient CTL sensor capable of accurately detecting ozone is developed using UiO-66-DA.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Ziyan Li, Jing Zhou, Chaoqun Wang, Rui Liu, Jianyu Hu, Yi Lv
Summary: The study presents a triplevalent tetrahedral DNA nanostructure (tTDN) with three overhang isotope probes capable of multiplex simultaneous analysis for accurate and cost-effective detection of different variants of SARS-CoV-2. Using the TDN scaffold and MNAzyme system, the study successfully identified and screened four different variants of concern (VOC) associated with α, β, δ, and Ο, with common mutations in the S gene.
Article
Chemistry, Multidisciplinary
Ziqiang Deng, Jin Zhou, Chaoqun Wang, Jianyu Hu, Rui Liu, Yi Lv
Summary: Food safety is critical for human health, but monitoring it effectively on-site is challenging. In this study, the combined use of the CRISPR system and pregnancy test strip (PTS) was introduced for the first time in food safety monitoring, allowing rapid and sensitive point-of-care testing (POCT) of aflatoxin B1. The low-cost and user-friendly nature of PTS-CRISPR is expected to improve safety in grassroots food markets.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Analytical
Yan Li, Zili Huang, Ziyan Li, Caixia Li, Rui Liu, Yi Lv
Summary: The occurrence of cancers is often accompanied by the abnormal expression of multiple biomarkers. This study proposes a simple and sensitive mass spectrometric method for the simultaneous detection of nucleic acid and protein biomarkers, which may be useful for the early screening of cancers.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Zili Huang, Xiaobo Xie, Bei Xu, Rui Liu, Jianyu Hu, Yi Lv
Summary: In this study, a standard-free single magnetic bead nanoplatform using metal nanoparticles was proposed for prostate disease diagnosis. The inaccuracy of detection was reduced by evaluating metal intensities. The proportion of free PSA in total PSA was successfully evaluated using the Pt/Au intensity ratio, showing better differentiation between different disease states.
Article
Chemistry, Multidisciplinary
Jing Zhou, Jianyu Hu, Rui Liu, Chaoqun Wang, Yi Lv
Summary: A nucleic acid amplification-free method, called the AuNPs-tagging based CRISPR-Cas12a bioassay platform, was proposed in this study. Signal amplification was achieved by integrating the self-amplification effect of CRISPR-Cas12a with the enhancement effect of a large number of detectable atoms inside each gold nanoparticle. The method achieved a low LOD value of 1.05 amol for HIV-related DNA in 40 minutes.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Analytical
Min Jiang, Jing Zhou, Xiaobo Xie, Zili Huang, Rui Liu, Yi Lv
Summary: Liquid biopsy is a sought-after technique for disease diagnosis, providing real-time, dynamic, and comprehensive information. This novel nanoparticle counting strategy allows for simultaneous analysis of multiple miRNAs for breast cancer diagnosis, showing potential for significant impact in cancer diagnosis.
ANALYTICAL CHEMISTRY
(2022)
