Article
Materials Science, Ceramics
Philippe Colomban, Anh-Tu Ngo, Howell G. M. Edwards, Linda C. Prinsloo, L. Valerie Esterhuizen
Summary: Shards of Blue-and-White Ming porcelain from shipwrecks of Portuguese ships found on the coasts of South Africa, as well as a shard from Mombasa (Kenya), were analyzed using optical microscopy, SEM-EDS, and Raman microspectroscopy. The study revealed differences in the composition of the porcelain body paste and types of glazes used, with blue decoration characteristic of materials rich in manganese.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Ruiqi Zhang, Peter Gethin
Summary: The earliest use of cobalt on porcelain can be traced back to the Tang dynasty, but it was not until the late Yuan dynasty that the production of widely known blue-and-white porcelain in Jingdezhen matured. Studies have focused on the sources of blue pigments used in the Yuan and Ming dynasties. Analysis of blue-and-white porcelain fragments from Jingdezhen minyao sites revealed a closer correlation of cobalt pigments used during the Kangxi, Yongzheng, and Qianlong reigns to Yunnan asbolites rather than the previously accepted Zhejiang asbolites.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Qijiang Li, Maolin Zhang, Lihua Wang, Yongbin Yu, Lu Xiong, Jie Zhou, Feng Yuan
Summary: This study used Energy Dispersive X-Ray Fluorescence, field emission scanning electron microscopy, and X-ray Absorption Fine Structure analysis to investigate the formation mechanism of 'Huoshihong' on the blue-and-white porcelain body of the Yuan Dynasty. The results showed that the formation of 'Huoshihong' is dependent on the presence of a liquid phase and the occurrence and re-oxidation of Fe2+.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Jiayu Hou, Qijiang Li, Jin Zhao, He Li, Baoqiang Kang
Summary: The Jingdezhen Imperial Kiln made unprecedented achievements in the firing of colour glazed porcelain during the Qing Dynasty. The beige-glazed porcelain imitated the glaze color of the Song Dynasty, while also innovating with a purple-gold glaze layer, showcasing the high production technology and innovation spirit of the Jingdezhen Imperial Kiln in the Qing Dynasty.
CERAMICS INTERNATIONAL
(2021)
Article
Agriculture, Multidisciplinary
Kristian von Wuthenau, Marie-Sophie Mueller, Lina Cvancar, Marie Oest, Markus Fischer
Summary: Food fraud, especially misdeclaration due to regional price differences, is a growing problem. Fast, powerful, and cost-effective analytical methods are necessary to tackle this issue. In this study, the isotopolome was analyzed using laser ablation inductively coupled plasma mass spectrometry, achieving an origin predictive accuracy of 85.2 +/- 1.2%.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Spectroscopy
Philippe Colomban, Michele Gironda, Howell G. M. Edwards, Viviane Mesqui
Summary: This study examines the early European porcelains made before the discovery of kaolin in Saxony, Germany. Analysis of blue-and-white artifacts from French national collection revealed different factories of origin and enamel types used. Mobile XRF and Raman instruments proved useful for on-site classification of artifacts.
JOURNAL OF RAMAN SPECTROSCOPY
(2021)
Article
Materials Science, Ceramics
Qianying Hoo, Xiaohu Wang, Feng Yuan, Xuewei Cao, Tiewa Cao, Maolin Zhang
Summary: This study investigates iron-spot decorations on the bluish white porcelains from Jingdezhen, uncovering the decreasing iron content during the transition of glaze colors and identifying a rare magnetic material, c-Fe2O3. The findings provide insights into the coloring mechanism of iron-spot decorations and the physical form of iron oxide crystals, suggesting the presence of a partially reducing atmosphere during the firing process.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
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)
Article
Chemistry, Analytical
Nicole M. Ralbovsky, Lanfang Zou, Bingming Chen, Nanyan Rena Zhang, Catherine D. G. Hines, Marissa Vavrek, Wendy Zhong, Joseph P. Smith, Xiaodong Bu
Summary: Spatial distribution analysis of metals, metalloids, and non-metals in biological tissues is important in life sciences to understand their roles in biological pathways. Chemical imaging methods can reveal individual spatial distributions of analytes, while LA-ICP-MS is effective for direct elemental analysis with high precision.
Article
Chemistry, Analytical
Zsolt Varga, Maria Wallenius, Adrian Nicholl, Klaus Mayer
Summary: A reliable and accurate laser ablation multi-collector inductively coupled plasma mass spectrometry method was developed for analysis of inhomogeneous samples containing uranium particles or aggregates of various enrichments. The results demonstrate that this method can accurately and precisely determine the various constituents of the sample.
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Dino Metarapi, Johannes T. van Elteren, Martin Sala, Katarina Vogel-Mikus, Iztok Arcon, Vid S. Selih, Mitja Kolar, Samo B. Hocevar
Summary: Advanced data processing and visualization techniques were applied to analyze the uptake and transformation of ionic silver to silver nanoparticles in sunflower roots, revealing that the size of the biosynthesized AgNPs is predisposed by the reducing power of specific root compartments. This multimodality information can only be obtained by combining the results of techniques from several complementary platforms.
ENVIRONMENTAL SCIENCE-NANO
(2021)
Article
Agriculture, Multidisciplinary
Jianzong Zhou, Wei Guo, Lanlan Jin, Shenghong Hu
Summary: A reliable LA-ICP-MS method for analyzing food materials was developed by using fine food powder pellets as the external standard and average C content as the internal standard. This method provides accuracy and precision and is suitable for high-throughput analysis in food safety laboratories.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2022)
Article
Chemistry, Analytical
Yun-Nam Chan, Judy Tsz-Shan Lum, Kelvin Sze-Yin Leung
Summary: Hair and nails are increasingly being used in human biomonitoring due to their non-invasive sampling, stability, and ease of storage. However, the lack of standardized analytical protocols has hindered the use of laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) for elemental analysis of these samples. In this study, analytical methods were developed for the analysis of model elements in hair and nails using LA-ICP-MS. Critical aspects of the method, such as line scan vs. spot scan and sample cleaning, were evaluated. The study demonstrates the potential application of LA-ICP-MS in high throughput elemental analysis of hair and nail samples for future biomonitoring studies.
MICROCHEMICAL JOURNAL
(2023)
Article
Geochemistry & Geophysics
Shuoyun Tong, Guodong Chen, Weikang Hu, Shiyang Pan, Dan Zhu, Shuang Liu, Li Lu, Shunchao Zhou, Wanfeng Zhou
Summary: Microsampling elemental analysis combined with chemometrics is used to establish an origin identification model for turquoise samples. The model improves traceability efficiency and accuracy, demonstrating the feasibility of identifying the origin of turquoise samples through elemental fingerprint information.
Article
Chemistry, Analytical
Mathilda L. Coutinho, Joao Pedro Veiga, Andreia Ruivo, Teresa P. Silva, Eduardo Salas-Colera, Silvia Bottura-Scardina, Augusta Lima, Elin Figueiredo, Marine Cotte, Maria Margarida R. Lima
Summary: Chinese blue-and-white porcelain is significant evidence of global trade routes and cultural exchange. Research has shown that the blue color of the porcelain is determined by the speciation of cobalt and iron, which can also be affected by the firing atmosphere conditions.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Geochemistry & Geophysics
Zhian Bao, Nan Lv, Kaiyun Chen, Yan Luan, Xiaohui Sun, Chunlei Zong, Honglin Yuan
Summary: The newly prepared natural chalcopyrite reference material TC1725 is homogeneous and suitable for microanalysis reference for Cu isotope measurement with good measurement precision. The mean delta Cu-65 value for this chalcopyrite material is consistent and reliable for bulk and single-grain isotope analyses performed by different techniques.
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2021)
Article
Geochemistry & Geophysics
Kai Wu, Lipeng Zhang, Honglin Yuan, Weidong Sun, Jianghong Deng, Robert E. Zartman, Jia Guo, Zhian Bao, Chunlei Zong
Summary: Hydrous minerals in the subduction zone are crucial in the recycling of boron, arsenic, and antimony. Variations in the composition and reactions of serpentinites formed at different depths provide important insights into material exchange in the subduction zone.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Spectroscopy
Kaivun Chen, Honglin Yuan, Zhi'an Bao, Nan Lv
Summary: This study explored the feasibility of Fe isotopic analysis in Fe-dominated minerals using 193 nm excimer ns laser ablation combined with high resolution MC-ICP-MS, finding that wet plasma conditions can significantly reduce matrix effects.
ATOMIC SPECTROSCOPY
(2021)
Article
Geochemistry & Geophysics
Chen Zhu, Yilun Zhang, J. Donald Rimstidt, Lei Gong, Joseph A. C. Burkhart, Kaiyun Chen, Honglin Yuan
Summary: The study demonstrates the advantages of using isotope tracers to test hypotheses of reaction mechanisms near-equilibrium. The results show that there is no major switch of reaction mechanisms near-equilibrium and suggest the dominance of an H2O-catalyzed reaction mechanism at pH 5-8.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Spectroscopy
Xiaojuan Nie, Zhian Bao, Peng Liang, Kaiyun Chen, Chunlei Zong, Honglin Yuan
Summary: This study proposes a highly efficient method for direct determination of Zn isotopes in Zn-rich minerals using MC-ICP-MS without the need for column chromatography. The experimental results show that non-deviated Zn isotopic ratios can be obtained by correcting instrumental mass bias. The method demonstrates good long-term reproducibility and little drift in Zn isotopic ratios in Zn-rich minerals.
ATOMIC SPECTROSCOPY
(2022)
Article
Chemistry, Analytical
Kaiyun Chen, Zhian Bao, Honglin Yuan, Nan Lv
Summary: This study presents a practical method for high-precision Fe isotope determination without column chromatography purification using multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS). The results of comparable experiments show that non-deviated Fe isotope ratios can be obtained directly by MC-ICP-MS using standard-sample bracketing without column chromatography purification. This method simplifies the chemical procedure and improves the efficiency of iron-dominated mineral Fe isotope analysis.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2022)
Article
Spectroscopy
Kaiyun Chen, Zhian Bao, Peng Liang, Xiaojuan Nie, Chunlei Zong, Honglin Yuan
Summary: A method for solidifying sulfide and sulfate nanoparticulate powder using epoxy resin was developed, allowing for in situ S isotopic analysis using LA-MC-ICP-MS. This method provides the opportunity to prepare bracketing standards and samples for a wide range of sulfur-bearing materials, particularly for samples with complex matrices. The precision of the S isotopic results obtained using LA-MC-ICP-MS was evaluated and found to be better than 0.47%. The in situ S isotope results were consistent with those obtained using SN-MC-ICP-MS. This method also offers new prospects for the preparation of homogenized reference materials from natural minerals.
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
(2022)
Article
Geochemistry & Geophysics
Long Ma, Youbin Sun, Zhangdong Jin, Zhian Bao, Honglin Yuan, Pan Zhang, Kang-Jun Huang
Summary: The study verifies precipitation proxies in Chinese loess eolian deposits, revealing staged enhancement of East Asian Summer Monsoon precipitation in the mid-Miocene and Quaternary periods, influenced by global warming and cooling, respectively. The research provides new insights into the evolution of EASM and its dynamic linkage with global climate changes.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2022)
Article
Geochemistry & Geophysics
Nan Lv, Zhian Bao, Kaiyun Chen, Chunlei Zong, Yan Zhang, Honglin Yuan
Summary: This study analysed four sulfide specimens and confirmed their potential as reference materials for sulfur isotope determination, showing comparable accuracy and precision.
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2022)
Article
Geochemistry & Geophysics
Zhian Bao, Xiaojuan Nie, Kaiyun Chen, Chunlei Zong, Nan Lv, Honglin Yuan
Summary: This study examined the micro-homogeneity of zinc isotope composition of the NIST SRM 683 and NBS 123 reference materials using fsLA-MC-ICP-MS. The results showed that NIST SRM 683 and NBS 123 are homogeneous in zinc isotope composition and have good in situ measurement precision. The study also confirmed the suitability of fsLA-MC-ICP-MS for measuring zinc isotopic ratios in zinc-rich materials.
GEOSTANDARDS AND GEOANALYTICAL RESEARCH
(2022)
Article
Geosciences, Multidisciplinary
Nan Lv, Zhian Bao, Kaiyun Chen, Kai Wu, Honglin Yuan
Summary: This study determined the copper isotopic compositions of 12 copper-rich minerals using a UV-fs-LA-MC-ICP-MS. It was found that matrix-matched standards were necessary for reliable results under dry plasma condition. The use of Ga as an internal standard did not reduce the deviation caused by matrix effect. However, adding water into the carrier gas in wet plasma mode significantly suppressed the matrix effect.
SCIENCE CHINA-EARTH SCIENCES
(2022)
Article
Chemistry, Analytical
Yang Fang, Kaiyun Chen, Zhian Bao, Chunlei Zong, Honglin Yuan, Nan Lv
Summary: A new protocol for antimony isotopic analysis using AGSOW-X8 resin and antimony standard doping is proposed in this study, which effectively separates antimony from matrices and calculates the accurate antimony isotope composition. The methodology has been testified by geological samples, yielding consistent results with previous studies.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Analytical
Peng Liang, Zhian Bao, Wenqiang Yang, Chunlei Zong, Kaiyun Chen, Yan Zhang, Honglin Yuan
Summary: This study presents the preparation of a new natural calcite reference material called MNP for in situ Sr isotope measurement. Various methods were used to examine the homogeneity and reliability of MNP calcite, and the results confirmed its potential as a reference material for microbeam Sr isotopic analysis.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Geochemistry & Geophysics
Kai Wu, Meijun Gong, Xiaoyan Jiang, Mingxing Ling, Honglin Yuan, Jaroslav Dostal
Summary: This study investigates the origin and magmatic processes of the North Kudi pluton in the Western Kunlun orogen, revealing its affinity to aluminous A-type granites and suggesting its derivation from partial melting of the metasomatized lithospheric mantle during the post-collisional stage.
Article
Chemistry, Analytical
Zhian Bao, Kaiyun Chen, Lei Kang, Chunlei Zong, Xiaojuan Nie, Nan Lv, Peng Liang, Honglin Yuan
Summary: This study compares three zircon synthesis techniques for the preparation of reference materials for Hf isotope analysis of zircon. The high-temperature and high-pressure sintered zircon samples show similar features to natural zircons, while the fast hot-pressing sintered zircon samples exhibit slight differences. All preparation techniques give reliable LA-MC-ICP-MS results, suggesting the potential of synthetic zircon samples as both tools for in situ method development and isotopic reference materials.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2023)
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)