Showing 481 - 500 results of 1,443 for search '"mass spectrometry"', query time: 0.07s Refine Results
  1. 481

    Direct Analysis of Low-Volatile Molecular Marker Extract from Airborne Particulate Matter Using Sensitivity Correction Method by Satoshi Irei

    Published 2016-01-01
    “…Analysis of artificial sample extracts was directly conducted by gas chromatography-mass spectrometry (GC-MS). After every sample injection, a standard mixture was also analyzed to make a correction on the variation of instrumental sensitivity caused by the unfavorable matrix contained in the extract. …”
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  2. 482

    Alginate Nanoparticles Containing Cuminum cyminum and Zataria multiflora Essential Oils with Promising Anticancer and Antibacterial Effects by Mahmoud Osanloo, Razieh Ranjbar, Elham Zarenezhad

    Published 2024-01-01
    “…The nanoparticles were comprehensively characterized using techniques such as gas chromatography-mass spectrometry (GC-MS), dynamic light scattering (DLS), zetasizer, attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR), and ultraviolet-visible spectroscopy (UV-Vis). …”
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  3. 483

    Network-Based Protein Biomarker Discovery Platforms by Minhyung Kim, Daehee Hwang

    Published 2016-03-01
    “…The advances in mass spectrometry-based proteomics technologies have enabled the generation of global proteome data from tissue or body fluid samples collected from a broad spectrum of human diseases. …”
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    Article
  4. 484

    Antibacterial Activity and Chemical Composition of Essential Oil of Athamanta sicula L. (Apiaceae) from Algeria by I. Labed, S. Chibani, Z. Semra, A. Kabouche, T. Aburjai, R. Touzani, Z. Kabouche

    Published 2012-01-01
    “…Tingara sicula) was analysed by gas phase chomatography coupled to mass spectrometry (GC-MS). The main constituents were: germacrene B (88.5%) and apiol (4.9%). …”
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  5. 485

    Diversity of the non-targeted metabolomic data across various varieties of Cloves (Syzygium spp.)Figshare by Jakty Kusuma, Analianasari, Anung Wahyudi, Muhammad Khalid Abdullah, Ahmad Zainul Hasan, Imam Asrowardi, Fitriani, Muhammad Tahir

    Published 2025-02-01
    “…Here, we employed a non-targeted mass-spectrometry-based metabolomics approach to characterize the metabolic profiles of leaves from ten clove varieties, including S. obtusifolium. …”
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    Article
  6. 486

    Quantitative Detection of Amino Acids and Carnitine in Human Blood and Quality Control of Peptide Drugs by Yuchun Ma, Yujie Zhu, Zhengqing Lu, Huiqing Hu, Jinmei Li, Shangqing Yang, Jiaru Han

    Published 2022-01-01
    “…First, a method for the detection of 10 amino acids and 32 acylcarnitine metabolites in human blood was established and analyzed by liquid chromatography tandem mass spectrometry. Through the experimental research on typical peptide drugs, combined with the classical synthesis process and the PLS-DA model of human body in different regions, the relevant detection methods for the quality control of peptide drugs were established, which provided a reference for the formulation of peptide drug quality standards. …”
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    Article
  7. 487

    Synthesis and evaluation of bisulfate/mesylate-conjugated chlortetracycline with high solubility and bioavailability by Liu Deng, Chen Peixing, Yang Xu, Wang Jianhua

    Published 2020-12-01
    “…Chlortetracycline bisulfate and chlortetracycline mesylate were successfully synthesized and characterized with several techniques, including spectroscopy, chromatography and mass spectrometry, which demonstrated that the C4-dimethylamino group of chlortetracycline can accept a proton from sulfuric acid and methanesulfonic acid to form the corresponding salts. …”
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  8. 488

    Gut microbiota interacting with vitamin D but not anandamide might contribute to the pathogenesis of preeclampsia: a preliminary study by Xiao-Qiang Han, Xiao-Qiang Han, Hui-Hui Jiang, Meng-Ling Chen, Meng-Ling Chen, De-Yang Han, De-Yang Han, Su-Fen Zhou, Su-Fen Zhou, Jin-Wen Wang, Shu-Shen Ji, Ling-Yun Wang, Jing-Wei Lou, Ming-Qun Li, Ming-Qun Li

    Published 2025-02-01
    “…Plasma AEA concentrations and serum VitD levels were determined by high-performance liquid chromatography-mass spectrometry (HPLC-MS) and liquid chromatography-tandem mass spectrometry (LC-MS/MS), respectively.ResultsIn this study, β diversity but not α diversity significantly differed between the LP and PE groups. …”
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  9. 489

    The Influences of Rootstock on the Performance of Pinot Noir (Vitis vinifera L.): Berry and Wine Composition by Yipeng Chen, Zijian Liang, Mark Krstic, Peter Clingeleffer, Kate Howell, Deli Chen, Pangzhen Zhang

    Published 2024-01-01
    “…The phenolic composition of the wine over the two vintages was identified and quantified by high-performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry (HPLC-QTOF-MS/MS) and HPLC with diode-array detection (HPLC-DAD). …”
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  10. 490

    Chemical Composition of Mexicali Propolis and Its Effect on Gastric Repair in an Indomethacin-Induced Gastric Injury Murine Model by Pilar Dominguez-Verano, Nadia Jacobo-Herrera, Andrés Castell-Rodríguez, Octavio Canales-Alvarez, Maria Margarita Canales-Martinez, Marco Aurelio Rodriguez-Monroy

    Published 2025-01-01
    “…The chemical composition was analysed using HPLC—TOF—MS (High—Performance Liquid Chromatography—Time—Of—Flight Mass Spectrometry) and GC—MS (Gas Chromatography–Mass Spectrometry), and a total of 52 compounds were identified. …”
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  11. 491
  12. 492

    Degradation kinetics, pathways, transformation products, and toxicity assessment of fluorochloridone in agricultural soils by Dong Zhao, Hongyu Chen, Shuo Shen, Enyu Lu, Junlong Feng, Hui Zhi, Lei Wang, Wei Li

    Published 2025-01-01
    “…High Performance Liquid Chromatography coupled with Tandem Mass Spectrometry (HPLC-MS/MS) was subsequently used for further quantification of these TPs in all samples under examination. …”
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  13. 493
  14. 494

    Ethanolamine-induced assembly of microcompartments is required for Fusobacterium nucleatum virulence by Dana S. Franklin, Yi-Wei Chen, Yimin Chen, Manuel Wittchen, Angela Agnew, Alexis Luu, Julian P. Whitelegge, Z. Hong Zhou, Andreas Tauch, Asis Das, Hung Ton-That

    Published 2025-02-01
    “…Deletion of the response regulator EutV eliminated this induction of eut mRNAs and BMCs, thus demonstrating that BMC formation is transcriptionally regulated by the TCS EutV-EutW in response to ethanolamine. Mass spectrometry of isolated BMCs unveiled the identity of the constituent proteins EutL, EutM1, EutM2, and EutN. …”
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  15. 495

    Spectroscopic, Thermal, Electrochemical, and Antimicrobial Studies of Mononuclear Manganese(II) Ditolyldithiophosphates by Ruchi Khajuria, Atiya Syed, Sandeep Kumar, Sushil K. Pandey

    Published 2013-01-01
    “…New complexes of manganese(II) corresponding to [{(ArO)2PS2}2Mn] and [{(ArO)2PS2}2Mn.nL] (Ar=o-,m-,p-CH3C6H4 and p-Cl-m-CH3C6H3; n=1, L = N2C12H8, N2C10H8; n=2, L = NC5H5, P(C6H5)3) have been synthesized and characterized by microelemental analyses (C, H, and N), magnetic susceptibility, molar conductance, thermogravimetric, cyclic voltammetry, and spectral analyses including ESI mass spectrometry, IR, and UV-visible. The presence of a four-and-six coordinated Mn atoms has been established in the complexes and adducts, respectively. …”
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  16. 496

    Impact of Aqueous Extract Artemisia Herba-Alba Leaves as a Green Inhibitor against Acid Activation of 2024 Aluminum Alloy by Nacer Hechiche, Gérald Culioli, Abdelaziz Kadri, Dalila Boughrara, Amar Saal, F. Xavier Perrin

    Published 2024-01-01
    “…Liquid chromatography/high resolution mass spectrometry is used to identify the chemical constituents of the natural extract, and the most abundant phytochemicals for each subclass of metabolite are investigated using density functional theory (DFT) calculations. …”
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  17. 497

    Analytical protocol for measuring micro-molar quantities of sulfur volatile species in experimental high pressure and temperature fluids by Arianna Secchiari, Luca Toffolo, Sandro Recchia, Simone Tumiati

    Published 2025-01-01
    “…We demonstrate that ex-situ measurements of these fluids by quadrupole mass spectrometry ensure accurate and precise analysis, confirming predicted thermodynamic compositions. …”
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  18. 498

    Two-Component Signal Transduction System SaeRS Positively Regulates Staphylococcus epidermidis Glucose Metabolism by Qiang Lou, Yijun Qi, Yuanfang Ma, Di Qu

    Published 2014-01-01
    “…In this study, we performed a proteomic analysis of differences in expression between the S. epidermidis 1457 wild-type and saeRS mutant to identify candidates regulated by saeRS using two-dimensional gel electrophoresis (2-DE) combined with matrix-assisted laser desorption/lonization mass spectrometry (MALDI-TOF-MS). Of 55 identified proteins that significantly differed in expression between the two strains, 15 were upregulated and 40 were downregulated. …”
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  19. 499

    Liquid-Phase Ethanol Oxidation and Gas-Phase CO Oxidation Reactions over M Doped (M = Ag, Au, Pd, and Ni) and MM′ Codoped CeO2 Nanoparticles by Yohan Park, Yulri Na, Debabrata Pradhan, Youngku Sohn

    Published 2016-01-01
    “…Herein, M doped (M = Ag, Au, Pd, and Ni) and MM′ codoped CeO2 nanoparticles (NPs) were prepared by a hydrothermal method and their liquid-phase ethanol and gas-phase CO oxidation performances were examined by UV-visible absorption spectroscopy and temperature programmed mass spectrometry, respectively. The ethanol and CO oxidation performances were enhanced greatly by metal-doping and were dependent on the relative concentration of codoped metals. …”
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    Article
  20. 500

    Update on New Antigens in the Pathogenesis of Membranous Nephropathy by Maurizio Salvadori, Aris Tsalouchos

    Published 2022-09-01
    “…The availability of novel techniques such as laser micro-dissection and tandem mass spectrometry, as well as immunochemistry with antibodies directed against novel proteins, allowed the confirmation of new antigens involved. …”
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