Showing 781 - 800 results of 1,443 for search '"mass spectrometry"', query time: 0.11s Refine Results
  1. 781

    Development and Validation of an UHPLC-QqQ-MS Technique for Simultaneous Determination of Ten Bioactive Components in Fangji Huangqi Tang by Xiaoli Wang, Xiao Liu, Tingting Zhu, Baochang Cai

    Published 2016-01-01
    “…The aim of this study is to develop an ultrahigh performance liquid chromatography method coupled with triple quadrupole mass spectrometry for simultaneous determination of tetrandrine, fangchinoline, atractylenolide I, atractylenolide III, calycosin-7-O-β-D-glucoside, glycyrrhizin, liquiritin, isoliquiritin, liquiritigenin, and isoliquiritigenin in Fangji Huangqi Tang (FHT). …”
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  2. 782

    Genotoxic Effects of Etoposide, Bleomycin, and Ethyl Methanesulfonate on Cultured CHO Cells: Analysis by GC-MS/MS and Comet Assay by Donald H. Atha, Erdem Coskun, Onur Erdem, Alessandro Tona, Vytas Reipa, Bryant C. Nelson

    Published 2020-01-01
    “…To evaluate methods for analysis of genotoxic effects on mammalian cell lines, we tested the effect of three common genotoxic agents on Chinese hamster ovary (CHO) cells by single-cell gel electrophoresis (comet assay) and gas chromatography-tandem mass spectrometry (GC-MS/MS). Suspension-grown CHO cells were separately incubated with etoposide, bleomycin, and ethyl methanesulfonate and analyzed by an alkaline comet assay and GC-MS/MS. …”
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  3. 783

    Use of aldol condensation between furfural and acetone for biofuel production: A review by Tayla Luiza Pereira Borges, Rejane de Castro Santana, André Gustavo Sato, Fábio de Ávila Rodrigues

    Published 2024-12-01
    “…Advances in analytical techniques, such as gas chromatography-mass spectrometry (GC-MS) and other state-of-the-art methods, have been instrumental in refining the characterization of heterogeneous catalysts, ensuring improved product quality and process optimization. …”
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    Article
  4. 784

    Thermal Emission of Alkali Metal Ions from Al30-Pillared Montmorillonite Studied by Mass Spectrometric Method by V. B. Motalov, N. S. Karasev, N. L. Ovchinnikov, M. F. Butman

    Published 2017-01-01
    “…The thermal emission of alkali metal ions from Al30-pillared montmorillonite in comparison with its natural form was studied by mass spectrometry in the temperature range 770–930 K. The measurements were carried out on a magnetic mass spectrometer MI-1201. …”
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  5. 785
  6. 786

    Analysis of Five Earthy-Musty Odorants in Environmental Water by HS-SPME/GC-MS by Zhen Ding, Shifu Peng, Weiwen Xia, Hao Zheng, Xiaodong Chen, Lihong Yin

    Published 2014-01-01
    “…A simple and sensitive method for simultaneous analysis of five odorants in environmental water was developed by headspace solid-phase microextraction (HS-SPME) coupled to chromatography-mass spectrometry (GC-MS), including geosmin (GSM) and 2-methylisoborneol (2-MIB), as well as dimethyl trisulfide (DMTS), β-cyclocitral, and β-ionone. …”
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  7. 787

    Impaired Hippocampal Glutamate and Glutamine Metabolism in the db/db Mouse Model of Type 2 Diabetes Mellitus by Jens Velde Andersen, Jakob Dahl Nissen, Sofie Kjellerup Christensen, Kia Hjulmand Markussen, Helle Sønderby Waagepetersen

    Published 2017-01-01
    “…In addition, acutely isolated cerebral cortical and hippocampal slices were incubated with [U-13C]glutamate and [U-13C]glutamine, and tissue extracts were analyzed by gas chromatography-mass spectrometry. The oxygen consumption rate using glutamate and glutamine as substrates was not different in isolated cerebral mitochondria of db/db mice compared to controls. …”
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  8. 788
  9. 789
  10. 790
  11. 791

    UPLC-MS metabolite profiling and antioxidant activity of Sanghuangporus sanghuang extract by Weike Wang, Na Lu, Cheng Jiang, Guanping Chen

    Published 2025-01-01
    “…A total of 491 metabolites were investigated by Ultra-performance liquid chromatography-mass spectrometry (UPLC-MS). Most of the top 20 compounds were predicted to have various functions like antioxidant, anti-cancer and anti-inflammatory. …”
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    Article
  12. 792

    Highly Sensitive Colorimetric Assay for Determining Fe3+ Based on Gold Nanoparticles Conjugated with Glycol Chitosan by Kyungmin Kim, Yun-Sik Nam, Yeonhee Lee, Kang-Bong Lee

    Published 2017-01-01
    “…Time-of-flight secondary ion mass spectrometry showed that the bound Fe3+ was coordinated to the oxygen atoms of the ethylene glycol in GC, which resulted in a significant color change from light red to dark midnight blue due to aggregation. …”
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  13. 793

    Rapid Determination of the Furaltadone Metabolite in Aquatic Products Based on Fe3O4@AuNPs/MWCNTs-COOH Immunosensor by LI Ting, HE Huange, LU Hang, LI Shuguo

    Published 2025-01-01
    “…The recovery rates of spiked crucian carp samples were between 92.78% and 102.61%, which was basically consistent with the results of high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Furthermore, the immunosensor method has the advantages of simple pre-treatment and fast detection speed, and can be used for the rapid detection of AMOZ in actual aquatic products.…”
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  14. 794

    Nematicidal potential of Microbacterium maritypicum Sneb159 against Heterodera glycines and the complete genome sequence analysis by Jing Zhao, Jing Zhao, Jing Zhao, Zhifu Xing, Aatika Sikandar, Yuxi Duan

    Published 2025-02-01
    “…Biological control provides a strategy for sustainable and environmentally friendly nematode management.MethodsIn this study, solid-phase microextraction gas chromatography-mass spectrometry (SPME-GC-MS) was used to reveal the volatile nematicidal compounds of Microbacterium maritypicum Sneb159 and the mode of action was further elucidated via whole genome sequencing.ResultsThe present study demonstrated that M. maritypicum Sneb159 fermentation broth showed strong nematicidal activities against H. glycines. …”
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  15. 795

    The effects of processing steps on avenanthramides, avenacosides and β-glucan content during the production of oat-based milk alternatives by Roisin McCarron, Lisa Methven, Sameer Khalil Ghawi, Stephanie Grahl, Ruan Elliott, Stella Lignou

    Published 2025-03-01
    “…Avenanthramides and avenacosides were measured using liquid chromatography-mass spectrometry, with β-glucan determined spectrophotometrically using a modified enzymatic assay.An overall reduction of 42 % was observed in measured β-glucan, with a decanting stage a main contributing factor. …”
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  16. 796

    Systematic Characterization of the Chemical Components of Canna edulis Ker-Gawl Based on UHPLC Q-Exactive Orbitrap MS Technology by Liqiao Lv, Chi Zhang, Jiahui Wu, Dachuan Zhang, Fangyuan Zhao, Lv Bu Aga, Nan Wang, Junling Li, Leimengyuan Tang, Baosheng Zhao, Chunguo Wang, Xueyong Wang

    Published 2023-01-01
    “…An efficient approach based on ultrahigh-performance liquid chromatography coupled with Q-Exactive Orbitrap tandem mass spectrometry (UHPLC Q-Exactive Orbitrap MS) was used to analyze the chemical components systematically. …”
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  17. 797

    Detection of HIV-1 and Human Proteins in Urinary Extracellular Vesicles from HIV+ Patients by Samuel I. Anyanwu, Akins Doherty, Michael D. Powell, Chamberlain Obialo, Ming B. Huang, Alexander Quarshie, Claudette Mitchell, Khalid Bashir, Gale W. Newman

    Published 2018-01-01
    “…EVs were isolated by ultrafiltration and characterized using transmission electron microscopy, tandem mass spectrometry (LC/MS/MS), and nanoparticle tracking analysis (NTA). …”
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  18. 798

    Antihuman Immunodeficiency Virus Type 1 (HIV-1) Activity of Rare Earth Metal Complexes of 4-Hydroxycoumarins in Cell Culture by Ilia Manolov, Sevda Raleva, Petya Genova, Alexey Savov, Liliana Froloshka, Daniela Dundarova, Radka Argirova

    Published 2006-01-01
    “…The complexes were characterized by different physicochemical methods: mass spectrometry, ¹H NMR, ¹³C NMR, and IR spectroscopy. …”
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  19. 799

    Multiomics-based assessment of the impact of airflow on diverse plant callus cultures by June-Sik Kim, Muneo Sato, Mikiko Kojima, Muchamad Imam Asrori, Yukiko Uehara-Yamaguchi, Yumiko Takebayashi, Thi Nhung Do, Thi Yen Do, Kieu Oanh Nguyen Thi, Hitoshi Sakakibara, Keiichi Mochida, Shinjiro Ogita, Masami Yokota Hirai

    Published 2025-02-01
    “…For each sample, gene expression was profiled with high-throughput RNA sequencing, 442 metabolites were measured using liquid chromatography (LC) with triple-quadrupole mass spectrometry (LC–QqQMS), and 31 phytohormones were quantified using ultra-performance LC coupled with a tandem quadrupole mass spectrometer equipped with an electrospray interface (UPLC-ESI-qMS/MS) and ultra-high-performance LC–orbitrap MS (UHPLC-Orbitrap MS). …”
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  20. 800

    Chemical Constituent and Antioxidant Activity of Clove (Syzygium aromaticum) Bud and Leaf Essential Oils from Bali by I Wayan Muderawan, Pande Putu Diah Suci Laksmi, I Wayan Mudianta, Ni Wayan Martiningsih

    Published 2025-01-01
    “…The constituents of the clove essential oils were analyzed by using gas chromatography-mass spectrometry (GC-MS). Thirty-six and twenty-nine constituents were identified based on GC-MS from the clove bud and leaf essential oils, respectively. …”
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    Article