Analytical Sciences最新文献_第6页

Determination of volatile organic compounds released by Trichoderma species and plant endophytic fungi using a needle-type extraction device and gas chromatography-mass spectrometry. 针式萃取-气相色谱-质谱联用法测定木霉和植物内生真菌释放的挥发性有机物。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-30 DOI: 10.1007/s44211-025-00783-z

Ikuo Ueta, Suguru Masuda, Ryota Kataoka

{"title":"Determination of volatile organic compounds released by Trichoderma species and plant endophytic fungi using a needle-type extraction device and gas chromatography-mass spectrometry.","authors":"Ikuo Ueta, Suguru Masuda, Ryota Kataoka","doi":"10.1007/s44211-025-00783-z","DOIUrl":"https://doi.org/10.1007/s44211-025-00783-z","url":null,"abstract":"This study proposes a method for the extraction of volatile organic compounds (VOCs) generated by Trichoderma species and plant endophytic fungi. In this method, generated VOCs are extracted using a needle-type extraction device and analyzed using gas chromatography-mass spectrometry. To extract VOCs generated by a single cultured fungi species, each fungi species was cultivated in a sealed 100 mL polypropylene bottle. Before cultivation, two silicone septa were attached to the bottle and cap. After the preparation of the culture media in the bottle, the bottle was autoclaved and the fungi were inoculated. The bottle was then sealed with a cap, and the air in the bottle was replaced with clean air. The surfaces of the extraction needle and a gas supply needle were sterilized with ethanol and inserted into the bottle via the two silicone septa. A gas sampling bag filled with pure air was connected to the gas supply needle, and clean air was continuously supplied to the bottle as the purge gas during the gas sampling. As the extraction needle, a double-bed-type adsorbent, Carbopack-X and a carbon molecular sieve, was used 3-Methyl butanol and 2-methyl butanol were detected for 41 species, and 2-pentylfran and 6-pentyl-2-pyrone were detected for 2 species among the 46 considered Trichoderma species. Monoterpenes and sesquiterpenes were detected for a single plant endophytic fungus species. The limit of detection of standard 3-methyl butanol and 2-methyl butanol in the proposed method was 0.5 ng mL-1. The performance of the proposed method was compared with that of the commercial MonoTrap method.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143952775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Control of Pt···Pt interactions in Pt(II) complex crystals as luminescence sensors for the detection of external stimuli: recent achievements and perspectives. 控制Pt（II）复合体晶体中Pt···Pt相互作用作为检测外部刺激的发光传感器：最近的成就和观点。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-30 DOI: 10.1007/s44211-025-00778-w

Masaki Yoshida, Masako Kato

{"title":"Control of Pt···Pt interactions in Pt(II) complex crystals as luminescence sensors for the detection of external stimuli: recent achievements and perspectives.","authors":"Masaki Yoshida, Masako Kato","doi":"10.1007/s44211-025-00778-w","DOIUrl":"https://doi.org/10.1007/s44211-025-00778-w","url":null,"abstract":"This review summarizes recent advances in the control of the luminescent chromic behavior of Pt(II) complex crystals, focusing on the design strategies of their molecular and packing structures. Square-planar Pt(II) complexes exhibit unique chromic luminescence owing to flexible Pt···Pt interactions, enabling their use as highly sensitive optical sensors to visualize external stimuli and environmental changes. However, the energy of the Pt···Pt interaction is relatively weak, making it difficult to precisely design and control the chromic luminescence based on the Pt···Pt interactions. This review discusses the challenging control of Pt···Pt interactions based on molecular assembly and presents design strategies using hydrogen bonding, halogen interactions, π-π stacking, and ion-pairing and counterion effects, with specific examples for each approach. Future research will focus on expanding analytical approaches, integrating these materials into sensing devices, and exploring synergies between chromic luminescence and other physical properties such as magnetism and conductivity. These advancements are expected to lead to innovative sensing technologies and significant breakthroughs in analytical chemistry and materials science.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143962819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessment of the X-ray-induced damage to sulfur in glass by laboratory X-ray fluorescence and wet chemical analysis. 用实验室x射线荧光和湿化学分析评价x射线对玻璃中硫的损伤。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-29 DOI: 10.1007/s44211-025-00777-x

Yoshitaka Saijo, Hiroyuki Hijiya

{"title":"Assessment of the X-ray-induced damage to sulfur in glass by laboratory X-ray fluorescence and wet chemical analysis.","authors":"Yoshitaka Saijo, Hiroyuki Hijiya","doi":"10.1007/s44211-025-00777-x","DOIUrl":"https://doi.org/10.1007/s44211-025-00777-x","url":null,"abstract":"Accurate valence state analysis of sulfur in glass is crucial because sulfur, a multivalent element, plays a pivotal role in regulating glass properties. X-ray analysis is a key technique for determining the valence state of sulfur; however, high-brightness synchrotron X-ray analysis can induce damage to sulfur in glass, reducing result reliability. Laboratory wavelength-dispersive X-ray fluorescence with a single crystal (single-crystal WD-XRF) is useful for routine analysis of average sulfur valence in glass samples; however, potential damage has not been reported. In this study, the stability of sulfur valence states in glass samples subjected to X-ray irradiation was investigated. WD-XRF measurements were conducted for up to 50 h, allowing in situ observation of sulfur damage. Wet chemical analysis was subsequently performed to verify the average sulfur valence in the irradiated areas. Two types of standard soda-lime silicate glasses, SRM 1831 (clear glass, high sulfur valence) and SGT10 (amber glass, low sulfur valence), were analyzed. Average sulfur valence remained stable in SRM 1831 but was gradually oxidized in SGT10 by X-ray irradiation. Wet chemical analyses confirmed these results, indicating that the sulfur valence change in SGT10 was actual. These analyses suggest that the oxidized layer of SGT10 was limited to the surface layer of the glass. This study highlights the importance of the conditions of WD-XRF analysis for the accurate determination of sulfur valence in glass, and the need for cross-validation with wet chemical analysis.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of ultra-thin glass sheets and their application to MEMS devices. 超薄玻璃片的制备及其在MEMS器件中的应用。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-26 DOI: 10.1007/s44211-025-00774-0

Yo Tanaka

引用次数: 0

Advancement of microchip electrophoresis coupled with capacitively coupled contactless conductivity detection-from design to application (2018-2024). 微芯片电泳耦合电容耦合非接触电导率检测的进展-从设计到应用（2018-2024）。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-25 DOI: 10.1007/s44211-025-00771-3

Mingpeng Yang, Chaofan Wang, Jun Cai, Xiaochen Lai, Mingyi Cao, Xingqiang Zhao

{"title":"Advancement of microchip electrophoresis coupled with capacitively coupled contactless conductivity detection-from design to application (2018-2024).","authors":"Mingpeng Yang, Chaofan Wang, Jun Cai, Xiaochen Lai, Mingyi Cao, Xingqiang Zhao","doi":"10.1007/s44211-025-00771-3","DOIUrl":"https://doi.org/10.1007/s44211-025-00771-3","url":null,"abstract":"Over the past three decades, microchip electrophoresis coupled with capacitively coupled contactless conductivity detection (ME-C4D) has garnered considerable interest due to its various merits, including minimal sample consumption, compact structure, immediate detection, and high analytical precision. Continuous technological innovation and improvement have significantly advanced ME-C4D in structural design, fabrication processes, and experimental methodologies. As a result, the application of this technology has expanded into a wider range of electrochemical analysis fields, including disease diagnosis, food safety assessment, environmental pollutant detection, and soil nutrient analysis. This review meticulously examines the forefront of ME-C4D over the last five years. It methodically categorizes and scrutinizes advancements from various dimensions, including newly emerged ME microchips, C4D electrodes, experimental protocols, and pioneering applications. Moreover, this paper critically summarizes these developments, identifying the prevailing limitations and challenges within ME-C4D. Ultimately, it projects potential future trajectories for innovation in the field of ME-C4D, suggesting pathways to overcome existing hurdles and hinting at the untapped possibilities that lie ahead.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143960292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of rust due to freshwater on the provenance determination of unearthed iron artifacts using nondestructive X-ray fluorescence spectrometry. 淡水生锈对出土铁器物源测定的影响——无损x射线荧光光谱法

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-25 DOI: 10.1007/s44211-025-00773-1

Shintaro Ichikawa, Kanon Sato, Yusuke Momosaki, Tsutomu Kurisaki

{"title":"Effect of rust due to freshwater on the provenance determination of unearthed iron artifacts using nondestructive X-ray fluorescence spectrometry.","authors":"Shintaro Ichikawa, Kanon Sato, Yusuke Momosaki, Tsutomu Kurisaki","doi":"10.1007/s44211-025-00773-1","DOIUrl":"https://doi.org/10.1007/s44211-025-00773-1","url":null,"abstract":"We examined the effect of rust due to freshwater on the provenance determination of iron artifacts, which is typically conducted based on elemental concentrations determined using nondestructive X-ray fluorescence (XRF) spectrometry. This was achieved by comparing a rusted iron sickle collected from farmland in Fukuoka, Japan before and after rust removal. The data were collected at 30 positions on the surface of the sample using nondestructive XRF spectrometry before and after rust removal. The concentration distributions of all elements in the sample before and after rust removal were considerably different. The escape depths of the fluorescent X-rays were calculated based on the median chemical composition of the rusted sample and then compared, and the rust thickness was estimated based on the sample thickness before and after rust removal. The fluorescent X-rays emitted from the sample, except Ba Kα, reflected only information from the rusted part not the uncorroded metal part. The As/Sb scatter plots, which are often used in provenance determination of iron artifacts, were created to compare the sample before and after rust removal. The As/Sb values measured at 30 positions after rust removal were normally distributed, whereas those measured before rust removal were not. Similarly, the scatter plots obtained in both cases exhibited different distributions. Therefore, the provenance determination of ironware using nondestructive XRF spectrometry would be affected by its rusting due to freshwater.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emergent mutual separation strategy for rare-earth elements based on crystallization of coordination compounds. 基于配位化合物结晶的稀土元素紧急互分离策略。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-23 DOI: 10.1007/s44211-025-00768-y

Atsuko Masuya-Suzuki

{"title":"Emergent mutual separation strategy for rare-earth elements based on crystallization of coordination compounds.","authors":"Atsuko Masuya-Suzuki","doi":"10.1007/s44211-025-00768-y","DOIUrl":"https://doi.org/10.1007/s44211-025-00768-y","url":null,"abstract":"Over the past several decades, rare-earth (RE) elements have been widely used in industrial products due to their exceptional physical, chemical, and mechanical properties. The discovery and industrial applications of RE elements have largely been driven by advances in their mutual separation, as RE ions exhibit highly similar chemical properties. In recent years, the growing production of RE-based products has highlighted concerns over supply risks. Recovering RE ions from end-of-life industrial products, often referred to as \"urban mines,\" offers a sustainable solution and supports a circular RE economy. To promote RE recycling, there is a pressing need to develop separation methods with higher selectivity and lower environmental impact. This mini-review focuses on a novel strategy for RE separation based on the crystallization of coordination compounds, as reported over the past decade. First, separation systems utilizing the crystallization of coordination polymers constructed with RE ions and organic bridging ligands are summarized. Then, separation through the crystallization of discrete RE complexes with organic ligands is described, with particular emphasis on ligand structure, separation factors, and crystallization conditions.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143957177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Surface plasmon resonance (SPR) sensing utilizing far- and deep-ultraviolet light. 利用远紫外光和深紫外光的表面等离子体共振（SPR）传感。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-22 DOI: 10.1007/s44211-025-00772-2

Ichiro Tanabe

引用次数: 0

Microfluidic technologies for protein crystallography: advances and applications. 蛋白质晶体学的微流控技术：进展与应用。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-21 DOI: 10.1007/s44211-025-00767-z

Masatoshi Maeki, Akihiko Ishida, Manabu Tokeshi

{"title":"Microfluidic technologies for protein crystallography: advances and applications.","authors":"Masatoshi Maeki, Akihiko Ishida, Manabu Tokeshi","doi":"10.1007/s44211-025-00767-z","DOIUrl":"https://doi.org/10.1007/s44211-025-00767-z","url":null,"abstract":"Three-dimensional protein structure determination by X-ray crystallography is essential for understanding biological function and accelerating drug discovery. However, obtaining high-quality protein crystals remains a significant bottleneck. The conventional crystallization methods are often labor-intensive, require large sample volumes, and offer limited control over the crystallization environment. This review summarizes the application of microfluidic technologies to protein crystallography with a focus on their advantages over the conventional crystallization methods. Microfluidic devices enable nanoliter-scale sample handling, precise control over crystallization conditions, and high-throughput screening, addressing major limitations of the conventional approaches. This review introduces various microfluidic platforms, including droplet-based and microwell-based systems, for protein crystallization, crystal growth control, and on-chip X-ray diffraction analysis. The review also covers the use of microfluidics for creating diffusion-controlled crystal growth environments, real-time crystal growth measurement, on-chip X-ray diffraction measurement, and room-temperature X-ray crystallography with automated data processing.","PeriodicalId":7802,"journal":{"name":"Analytical Sciences","volume":" ","pages":""},"PeriodicalIF":1.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143964323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidic paper-based analytical devices: proven applications and future prospects in therapeutic drug monitoring, homeland security, and chemical education. 微流控纸基分析装置：在治疗药物监测、国土安全和化学教育方面的成熟应用和未来前景。

IF 1.8 4区化学

Analytical Sciences Pub Date : 2025-04-19 DOI: 10.1007/s44211-025-00758-0

Manabu Tokeshi

引用次数: 0