Showing 201 - 220 results of 487 for search '"Ionization"', query time: 0.05s Refine Results
  1. 201

    Comparative Pharmacokinetic Studies of Four Ginsenosides in Rat Plasma by UPLC-MS/MS after Oral Administration of Panax quinquefolius-Acorus gramineus and Panax quinquefolius Extra... by Hailong Xie, Dongxue Wang, Wenjun Zhang, Xinjia Yan, Ying Zhao

    Published 2019-01-01
    “…Plasma specimens were purified by using the solid-phase extraction procedure, and separation was performed on Waters ACQUITY UPLC BEH C18 (100 mm × 2.1 mm, 1.7 μm) in multiple reaction monitoring (MRM) mode and negative electrospray ionization (ESI) mode. The established UPLC-MS/MS method showed good linear correlation (r ≥ 0.9978), stability (−11.93 to 12.11%), precision (RSD < 14.63%), and recovery (76.43%–95.20%). …”
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  2. 202

    Determination of 13 Aminoglycoside Residues in Milk by Weak Cation Exchange Solid Phase Extraction Coupled with Ultra-high Performance Liquid Chromatography-Tandem Mass Spectrometr... by HE Jinlin, SHEN Luying, SUN Ting, FU Jianwei, YAN Lijuan, XU Dunming

    Published 2025-02-01
    “…Detection was accomplished using an electrospray ionization source (EIS) in the positive ion mode, and quantification was carried out using a matrix-matched external standard method. …”
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  3. 203

    Metabolites Profiling of Manilkara mabokeensis Aubrév Bark and Investigation of Biological Activities by Xavier Worowounga, Rami Rahmani, Armel-Frederic Namkona, Sylvie Cazaux, Jean-Laurent Syssa-Magalé, Hubert Matondo, Jalloul Bouajila

    Published 2022-01-01
    “…Interestingly, gas chromatography-flame ionization detector (GC-FID) and gas chromatography-mass spectrometry (GC-MS) analysis were enabled to identify 23 compounds in the essential oil of M. mabokeensis Aubrév bark, which have not been previously described in the literature. …”
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  4. 204

    Growth Phase-Dependent Proteomes of the Malaysian Isolated Lactococcus lactis Dairy Strain M4 Using Label-Free Qualitative Shotgun Proteomics Analysis by Theresa Wan Chen Yap, Amir Rabu, Farah Diba Abu Bakar, Raha Abdul Rahim, Nor Muhammad Mahadi, Rosli Md. Illias, Abdul Munir Abdul Murad

    Published 2014-01-01
    “…In this study, ultraperformance liquid chromatography nanoflow electrospray ionization tandem mass spectrometry (UPLC- nano-ESI-MSE) approach was used for qualitative proteomic analysis. …”
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  5. 205

    Simultaneous Determination of Six Components in Beagle Dog Plasma by UPLC-MS/MS and Its Application to a Comparative Pharmacokinetic Study of Three Different Yuanhu Zhitong Prepara... by Yang Wang, Zhaorui Yin, Kai Zhang, Qingfen Meng, Jianli Guan, Guanwei Fan

    Published 2022-01-01
    “…Detection was conducted by multiple reaction monitoring mode in the positive ionization. The calibration curves showed good linearity (r > 0.9920). …”
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  6. 206

    Application of Monoclonal Antibodies against Bioactive Natural Products: Eastern Blotting and Preparation of Knockout Extract by Hiroyuki Tanaka, Osamu Morinaga, Takuhiro Uto, Shunsuke Fuji, Frederick Asare Aboagye, Nguyen Huu Tung, Xiao Wei Li, Waraporn Putalun, Yukihiro Shoyama

    Published 2012-01-01
    “…Matrix-assisted laser desorption/ionization (MALDI) tof mass spectrometry was used for the confirmation of hapten number in synthesized antigen. …”
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  7. 207

    Comparison of BTX Profiles and Their Mutagenicity Assessment at Two Sites of Agra, India by Vyoma Singla, Tripti Pachauri, Aparna Satsangi, K. Maharaj Kumari, Anita Lakhani

    Published 2012-01-01
    “…VOCs were collected using SKC-activated charcoal tubes and SKC personal sampler and characterized by gas chromatograph using flame ionization detector. Among BTX, benzene had the highest concentration. …”
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  8. 208

    Gadolinium(III) Complexes with N-Alkyl-N-methylglucamine Surfactants Incorporated into Liposomes as Potential MRI Contrast Agents by Simone Rodrigues Silva, Érica Correia Duarte, Guilherme Santos Ramos, Flávio Vinícius Crizóstomo Kock, Fabiana Diuk Andrade, Frédéric Frézard, Luiz Alberto Colnago, Cynthia Demicheli

    Published 2015-01-01
    “…Complexes of gadolinium(III) with N-octanoyl-N-methylglucamine (L8) and N-decanoyl-N-methylglucamine (L10) with 1 : 2 stoichiometry were synthesized and characterized by elemental analysis, electrospray ionization-tandem mass spectrometry (ESI-MS), infrared (IR) spectroscopy, and molar conductivity measurements. …”
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  9. 209

    Influence of Solar Wind High‐Speed Streams on the Brazilian Low‐Latitude Ionosphere During the Descending Phase of Solar Cycle 24 by S. P. Moraes‐Santos, C. M. N. Cândido, F. Becker‐Guedes, B. Nava, V. Klausner, C. Borries, F. S. Chingarandi, T. O. Osanyin

    Published 2024-12-01
    “…We analyze the variations in Vertical Total Electron Content (VTEC) at three representative regions: bele, over the equatorial region; boav and cuib, at the northern and southern crests of the Equatorial Ionization Anomaly. Our findings reveal the role of High‐Speed Solar Wind Streams and Corotating Interaction Region—driven geomagnetic storms. …”
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  10. 210

    Infections Caused by Actinomyces neuii: A Case Series and Review of an Unusual Bacterium by Nathan Zelyas, Susan Gee, Barb Nilsson, Tracy Bennett, Robert Rennie

    Published 2016-01-01
    “…Isolates’ identities were confirmed by matrix-assisted laser desorption ionization time-of-flight mass spectrometry microbial identification system (MALDI-TOF MS MIS; bioMérieux) and/or DNA sequencing. …”
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  11. 211

    Rapid detection of Tulipalin A with SESI-Orbitrap MS: an exploration across spring flowers by An N. T. Phan, Roy Eerlings, Hendrik G. Mengers, Lars M. Blank

    Published 2025-02-01
    “…Results Here, we demonstrated the secondary electrospray ionization coupled Orbitrap mass spectrometry (SESI-Orbitrap MS) methodology for quantifying tulipalin A release from plants upon injury. …”
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  12. 212

    Identification of In Vivo Metabolites of Dictamnine in Mice Using HPLC-LTQ-Orbitrap Mass Spectrometry by Yudong Fu, Yujie Deng, Qing Yu, Xuxia Meng, Dabo Wang, Pei Wang, Ping Wang

    Published 2018-01-01
    “…To investigate the in vivo metabolic pathways of DIC, metabolism of DIC in mice was studied using a high-performance liquid chromatography coupled to electrospray ionization of hybrid linear trap quadrupole orbitrap (HPLC-LTQ-Orbitrap) mass spectrometer. …”
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  13. 213

    Rapid analysis of fifteen sulfonamide residues in pork and fish samples by automated on-line solid phase extraction coupled to liquid chromatography–tandem mass spectrometry by Junmei Ma, Sufang Fan, Lei Sun, Liangna He, Yan Zhang, Qiang Li

    Published 2020-12-01
    “…Mass spectrometric data was acquired under multiple reaction monitoring (MRM) mode using positive ionization electrospray. Internal standard method was used in the quantification, good linear relationship was got in range of 0.1–100 ng/mL and correlation coefficient was higher than 0.9990. …”
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    Article
  14. 214

    Determination of Crizotinib in Mouse Tissues by LC-MS/MS and Its Application to a Tissue Distribution Study by Fang Zhao, Yuan Wei, Yiming Yan, Han Liu, Sitong Zhou, Bo Ren, Ruijuan Liu

    Published 2020-01-01
    “…Tandem mass spectrometric detection was conducted using multiple reaction monitoring via an electrospray ionization source in the positive mode. The monitored ion transitions were m/z 450.1 ⟶ 260.2 for crizotinib and m/z 398.2 ⟶ 212.0 for apatinib. …”
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  15. 215

    SOFCs integrated with SMES under dynamic power control using Chernobyl disaster optimizer by Sameh I. Selem, Attia A. El-Fergany, Eid A. Gouda, Mohamed F. Kotb, Islam Ismael

    Published 2025-01-01
    “…The procedures of the CDO is based on physical behavior of the elaborated radiations from the well-known Chernobyl disaster according to their mass, speed, frequency, and degree of ionization. The sum of square errors (SMSE) among the estimated and the real measured output voltage datasets of SOFCs is minimized employing the CDO. …”
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  16. 216

    NEUTRON CAPTURE GAMMA RAY FIELD WITH ENERGY TO 10 MeV FOR METROLOGICAL SUPPORT OF RADIATION PROTECTION DEVICES by D. I. Komar, R. V. Lukashevich, V. D. Guzov, S. A. Kutsen

    Published 2016-12-01
    “…Therefore, we have a need to calibrate spectrometric and dosimetric ionization measurement instruments for the energies to 10 MeV. …”
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  17. 217

    An UPLC-MS/MS Method for Determination of Osimertinib in Rat Plasma: Application to Investigating the Effect of Ginsenoside Rg3 on the Pharmacokinetics of Osimertinib by Zhenzhen Ying, Jingyao Wei, Ruijuan Liu, Fang Zhao, Yifang Yu, Xin Tian

    Published 2020-01-01
    “…Detection was carried out on a triple quadrupole tandem mass spectrometer equipped with electrospray ionization in the MRM mode. The method was validated over a concentration range of 1–400 ng/mL for osimertinib. …”
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    Article
  18. 218

    Immunoassay–mass spectrometry to identify Brucella melitensis by Amirreza Sharif, Ramin Bagheri Nejad, Alireza Ghassempour

    Published 2025-02-01
    “…Two factors frequently impede accurate bacterial identification using matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS): inadequate bacterial abundance in real samples and bacterial combinations. …”
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    Article
  19. 219

    Super‐Intense Geomagnetic Storm on 10–11 May 2024: Possible Mechanisms and Impacts by S. Tulasi Ram, B. Veenadhari, A. P. Dimri, J. Bulusu, M. Bagiya, S. Gurubaran, N. Parihar, B. Remya, G. Seemala, Rajesh Singh, S. Sripathi, S. V. Singh, G. Vichare

    Published 2024-12-01
    “…Further, an HF radio blackout was found to occur in the 2–12 MHz frequency band due to strong D‐ and E‐region ionization resulting from a solar flare prior to this storm.…”
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  20. 220

    Synthesis and Evaluation of In Vitro Antibacterial and Antitumor Activities of Novel N,N-Disubstituted Schiff Bases by Heng Luo, Yu-fen Xia, Bao-fei Sun, Li-rong Huang, Xing-hui Wang, Hua-yong Lou, Xu-hui Zhu, Wei-dong Pan, Xiao-dong Zhang

    Published 2017-01-01
    “…We used the reaction between salicylaldehyde and different diamine compounds, including diamine, ethanediamine, and o-phenylenediamine, determining the structure of obtained molecules by nuclear magnetic resonance spectroscopy and electrospray ionization mass spectroscopy. We thus evaluated the microbicidal and antitumor activity of these compounds, showing that salicylaldehyde-hydrazine hydrate Schiff base (compound 1a) significantly inhibited the growth of S. aureus; salicylaldehyde-o-phenylenediamine Schiff base (compound 1c) displayed a strong capability to inhibit the proliferation of leukemia cell lines K562 and HEL. …”
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