Showing 501 - 520 results of 1,810 for search '"Mass spectrometry"', query time: 0.06s Refine Results
  1. 501

    Quorum Sensing Activity of Mesorhizobium sp. F7 Isolated from Potable Water by Pei-Ling Yong, Kok-Gan Chan

    Published 2014-01-01
    “…The AHL profile of the isolate was further analyzed using high resolution triple quadrupole liquid chromatography mass spectrometry (LC/MS) which confirmed the production of multiple AHLs, namely, N-3-oxo-octanoyl-L-homoserine lactone (3-oxo-C8-HSL) and N-3-oxo-decanoyl-L-homoserine lactone (3-oxo-C10-HSL). …”
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  2. 502

    First case report of bacteremia caused by Bilophila wadsworthia in China, and literature review by Fangrong Gan, Shuang Luo, Xiaoxun Wei, Shuguang Zuo

    Published 2025-02-01
    “…Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) enabled rapid identification of the pathogen. …”
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  3. 503

    Thermal analysis study of polymer-to-ceramic conversion of organosilicon precursors by Galusek D., Lenčéš Z., Šajgalík P., Riedel Ralf

    Published 2008-01-01
    “…Decomposition of polymers and their conversion to ceramics is studied by the combination of differential thermal analysis (DTA), differential scanning calorimetry (DSC) thermogravimetry(TG), and mass spectrometry (MS). The use of these methods in study of the polymer-to-ceramic conversion is illustrated by case studies of a commercially available poly(allyl)carbosilane as the precursor of SiC, and a poly(hydridomethyl)silazane as the precursor of SiCN.…”
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  4. 504

    Direct Analysis of Pharmaceutical Drugs Using Nano-DESI MS by Carlos Cardoso-Palacios, Ingela Lanekoff

    Published 2016-01-01
    “…In this work, molecules in several pharmaceutical tablets were directly analyzed using nanospray desorption electrospray ionization mass spectrometry (nano-DESI MS). Nano-DESI is an ambient surface sampling technique which enables sampling of molecules directly from the surface of the tablets without any sample pretreatment. …”
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  5. 505

    Molecular Modelling of Selected Phthalates and Their Interactions with Stationary Phases in Solid-Phase Microextraction by Dariusz Wideł, Jerzy Oszczudłowski, Zygfryd Witkiewicz

    Published 2015-08-01
    “…Extracted samples were analyzed using gas chromatography coupled with mass spectrometry. In the analysis of phthalates extracted from methanol solution, the best extraction efficiency was obtained for the PA phase, whereas for the extraction from aqueous solution, higher efficiency was obtained for the PDMS phase.…”
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  6. 506

    Arsenic and Lead Uptake by Vegetable Crops Grown on Historically Contaminated Orchard Soils by M. B. McBride

    Published 2013-01-01
    “…The vegetables were acid-digested and analyzed for total Pb and As using ICP-mass spectrometry. Vegetable contamination was dependent on soil total Pb and As concentrations, pH, and vegetable species. …”
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  7. 507

    Phase diagram prediction and particle characterization of Sn-Ag nano alloy for low melting point lead-free solders by Sopousek J., Vrestal J., Zemanova A., Bursi J.

    Published 2012-01-01
    “…The chemical composition of the SnAg NPs was obtained by inductively coupled plasma - mass spectrometry. The prepared fine powder samples were characterized by electron microscopic technique (SEM) and thermal analysis (DSC). …”
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  8. 508

    The failure criterion based on hydrogen distribution ahead of the fatigue crack tip by Yu. G. Matvienko

    Published 2013-03-01
    “…The secondary ion mass spectrometry method has been employed to analyse the distribution of hydrogen concentration in the zone of the crack tip and at its edges. …”
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    Article
  9. 509

    Widely targeted metabolomics analysis reveals the dynamically changes in volatile metabolites during xiaoqu baijiu fermentation by Zhenbing Ma, Haibo Lan, Dong Zhao, Jingren Wei, Jia Zheng, Jian Su, Shengyuan Xiang, Zhu Luo, Rui Li, Yi Ma, Lijuan Gong

    Published 2025-01-01
    “…In this study, ultra-performance liquid chromatography–tandem mass spectrometry and gas chromatography–tandem mass spectrometry were used to analyze a widely targeted metabolome during the xiaoqu baijiu fermentation process. …”
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  10. 510
  11. 511

    Development of Tandem Ion Mobility Spectrometry with High-voltage Fragmentation Unit at Atmospheric Pressure for Explosives Detection by Kang-yi LIU, Tian-xin XIAN, Ling-feng LI, Yun-jing ZHANG, Xing-li HE, Peng LI

    Published 2025-01-01
    “…To address this issue, referencing collision-induced dissociation (CID) in mass spectrometry, explosives can be similarly dissociated under atmospheric pressure through radio frequency strong electric fields. …”
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    Article
  12. 512

    Reactivity in cell culture medium and in vitro anticancer activity of 3,5-di-tert-butylcatechol: link to metal-catechol interactions by Aviva Levina, Debbie C. Crans, Peter A. Lay

    Published 2025-02-01
    “…These results were explained by speciation studies (UV/Vis spectroscopy and mass spectrometry) of dtbH2 and dtbQ in cell culture medium, aqueous buffers, or organic solvents in the presence or absence of GSH. …”
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  13. 513

    Danggui-Shaoyao-San Can Ameliorate Alzheimer’s Disease by Inhibiting Hippocampal Neuron Apoptosis: Findings from Serum Pharmacology by Zhang KX, Zhang JW, Jiang YH, Wang YR, Liu ZL, Ding PL, Wang XY, Cui WQ, Xu XQ, Wang YH

    Published 2025-02-01
    “…Kai-Xin Zhang,1 Ji-Wei Zhang,2 Yan-Hong Jiang,1 Yi-Ran Wang,1 Zhen-Ling Liu,1 Peng-Li Ding,1 Xiang-Ying Wang,1 Wen-Qiang Cui,3 Xiang-Qing Xu,3,* Ya-Han Wang3,* 1First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250000, People’s Republic of China; 2College of Acupuncture and Massage, Shandong University of Traditional Chinese Medicine, Jinan, 250000, People’s Republic of China; 3Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250000, People’s Republic of China*These authors contributed equally to this workCorrespondence: Xiang-Qing Xu, Ya-Han Wang; Department of Neurology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250000, People’s Republic of China, Email happyxiangqing@163.com; sdwangyahan@sina.comBackground: Danggui-Shaoyao-San (DSS) is a traditional Chinese medicine prescription with a history of nearly 2000 years, originally widely used for gynecological diseases, and in recent years research has found that DSS also has a good therapeutic effect on Alzheimer’s disease (AD).Purpose: The objective is to investigate the metabolic components of the DSS in the blood and the potential mechanisms for AD.Materials and Methods: Liquid chromatography‒mass spectrometry (LC-MS) combined with gas chromatography‒mass spectrometry (GC-MS) based non-targeted metabolomics were used to conduct in-depth research. …”
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  14. 514

    One-Step Solid Extraction for Simultaneous Determination of Eleven Commonly Used Anticancer Drugs and One Active Metabolite in Human Plasma by HPLC-MS/MS by Shouhong Gao, Zhengbo Tao, Jingya Zhou, Zhipeng Wang, Yunlei Yun, Mingming Li, Feng Zhang, Wansheng Chen, Yejun Miao

    Published 2018-01-01
    “…The Agilent G6410A triple quadrupole liquid chromatography-mass spectrometry system was operated under the multiple reaction monitoring mode with an electrospray ionization in the positive mode. …”
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  15. 515
  16. 516

    Pantoea eucrina: Catheter‐Related Bloodstream Infection in a Woman With Short Bowel Syndrome by Ida Saksenborg Kølle, Lars Vinter‐Jensen, Morten Eneberg Nielsen, Hans Linde Nielsen

    Published 2025-01-01
    “…Despite presenting with only minor clinical symptoms, blood cultures from both central and peripheral sites confirmed the presence of P. eucrina, identified by matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOF MS) and whole‐genome sequencing. …”
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    Article
  17. 517

    Unraveling the redox code to improve physiological research in human health and disease by Josh Thorley

    Published 2024-11-01
    “…New techniques, such as advanced mass spectrometry and high‐throughput immunoassays, offer improved accuracy in measuring redox states and oxidative damage. …”
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  18. 518

    Photoexcitation in thin films deposited on silicon substrates by reactive pulsed laser ablation by A. Giardini Guidoni, V. Marotta, S. Orlando, G. P. Parisi

    Published 2001-01-01
    “…The reactivity of the plume has been already studied by our group in other oxides and nitrides productions and ascertained by Time of Flight Mass Spectrometry measurements [1].…”
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  19. 519

    Determination of ramipril in human plasma and its fragmentation by UPLC-Q-TOF-MS with positive electrospray ionization by Szpot Paweł, Buszewicz Grzegorz

    Published 2015-06-01
    “…This report presents the application of ultra-performance liquid chromatography coupled to quadrupole time-of-flight mass spectrometry with positive electrospray ionization, to determine ramipril in human plasma. …”
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  20. 520

    FATTY ACID COMPOSITION AND ANTIOXIDANT ACTIVITY OF CAMELLIA NINHII SEED OIL COLLECTED IN LAM DONG PROVINCE by Thi Tu Quyen Tran, Thi Diep Trinh, Thi To Uyen Nguyen, Van Son Le

    Published 2022-03-01
    “…The seed oil of Camellia ninhii was studied for the first time on its fatty acid composition by gas chromatography-mass spectrometry (GC-MS) and antioxidant activity by the DPPH method. …”
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    Article