Showing 141 - 160 results of 340 for search '"Nuclear magnetic resonance"', query time: 0.07s Refine Results
  1. 141

    Antioxidant Activity and Isolation of Luteoline from Centaurea behen L. Grown in Iran by Akbar Esmaeili, Zahra Mousavi, Maryam Shokrollahi, Ali Shafaghat

    Published 2013-01-01
    “…The structures involved were elucidated by 1H and 13C nuclear magnetic resonance (NMR) and heteronuclear multiple-bond correlation (HMBC) spectra. …”
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    Article
  2. 142

    Bio-inspired novel choline ester ionic liquid gel polymer electrolytes for safer lithium-ion batteries by Tommy Hoong Wy Lee, Phei Li Lau, Ianatul Khoiroh

    Published 2025-06-01
    “…Structural confirmation via Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance (NMR) spectroscopy verified successful synthesis, while the thermogravimetric analyzer (TGA) revealed their promising thermal stability. …”
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    Article
  3. 143

    Remarkable Conversion of 2-Thioxo-2,3-dihydroquinazolin-4(1H)-ones into the Corresponding Quinazoline-2,4(1H,3H)-diones: Spectroscopic Analysis and X-Ray Crystallography by Adel S. El-Azab, Nasr Y. Khalil, Alaa A.-M. Abdel-Aziz

    Published 2021-01-01
    “…The structure of the newly synthesized compounds was determined by infrared spectroscopy, UV-visible spectroscopy, nuclear magnetic resonance, and single-crystal X-ray crystallographic analysis. …”
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    Article
  4. 144

    Synthesis of Cationic Waterborne Polyurethanes from Waste Frying Oil as Antibacterial Film Coatings by Sivaphol Phunphoem, Onusa Saravari, Pitt Supaphol

    Published 2019-01-01
    “…CWPUs were successfully synthesized as confirmed by proton nuclear magnetic resonance spectroscopy (1H-NMR) and Fourier transform infrared spectroscopy (FT-IR). …”
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    Article
  5. 145

    NMR-Based Plasma Metabolomics at Set Intervals in Newborn Dairy Calves with Severe Sepsis by Abdullah Basoglu, Ismail Sen, Gaia Meoni, Leonardo Tenori, Amir Naseri

    Published 2018-01-01
    “…To our knowledge, this is the first study presenting an NMR- (nuclear magnetic resonance-) based plasma metabolomics at set intervals in neonatal septic calves. …”
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    Article
  6. 146

    Synthesis of Functional Polyester Based on Polylactic Acid and Its Effect on PC12 Cells after Coupling with Small Peptides by Na Qiang, Shuo Tang, Xiang Liao, Hao Liang, Fang Xie, Ji-xiang Zhu

    Published 2016-01-01
    “…Copolymer structure was characterized by 1H nuclear magnetic resonance (1H NMR), gel permeation chromatography (GPC), and differential scanning calorimetry (DSC) analyses. …”
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    Article
  7. 147

    Peat Characterization and Uptake of Nickel (II) and Cobalt (II) in a Saprist Peat Column by E.S. Asapo, C.A. Coles

    Published 2012-05-01
    “…Results of Fourier transform infrared spectroscopy and 13 carbon nuclear magnetic resonance suggested the presence of carboxylic acid, alcoholic hydroxyl, phenolic hydroxyl, amine and amide functional groups in both peats. …”
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    Article
  8. 148

    A Comparison of the Physicochemical Properties and Fatty Acid Composition of Indaiá (Attalea dubia) and Babassu (Orbignya phalerata) Oils by Bianca Silva Ferreira, Lara Pereira Faza, Mireille Le Hyaric

    Published 2012-01-01
    “…The oil was also analyzed using infrared and nuclear magnetic resonance spectroscopy. The fatty acid profile of the oil was determined by GC-MS. …”
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    Article
  9. 149

    A digital platform for automated analysis of 1H NMR data: prototype framework of digital reference standard by Sunil Babu Paudel, Joo-Won Nam, Gonzalo R. Malca Garcia, Ben Shapiro, Pekka Laatikainen, Yang Liu

    Published 2025-01-01
    “…Abstract This study introduces an innovative approach to automatically analyzing 1H nuclear magnetic resonance (NMR) data, integrating a quantum mechanical spectral analysis (QMSA) to enhance efficiency over manual data analysis in NMR. …”
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    Article
  10. 150

    Bioactive sorbicillinoid derivatives from an endophytic fungus Trichoderma citrinoviride by Yan-Ping Xia, Yan Xie, Li Rao, Guo-Ping Yin

    Published 2025-01-01
    “…Their structures were elucidated through extensive analyses of spectroscopic data, computer-assisted structure elucidation (ACD/Structure Elucidator), density functional theory (DFT) calculations of the nuclear magnetic resonance (NMR) spectra, and electronic circular dichroism (ECD). …”
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    Article
  11. 151

    Genome-wide characterization of 54 urinary metabolites reveals molecular impact of kidney function by Erkka Valo, Anne Richmond, Stefan Mutter, Emma H. Dahlström, Archie Campbell, David J. Porteous, James F. Wilson, FinnDiane Study Group, Per-Henrik Groop, Caroline Hayward, Niina Sandholm

    Published 2025-01-01
    “…Abstract Dissecting the genetic mechanisms underlying urinary metabolite concentrations can provide molecular insights into kidney function and open possibilities for causal assessment of urinary metabolites with risk factors and disease outcomes. Proton nuclear magnetic resonance metabolomics provides a high-throughput means for urinary metabolite profiling, as widely applied for blood biomarker studies. …”
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    Article
  12. 152

    Purification, structural elucidation, and in vitro antitumor effects of novel polysaccharides from Bangia fuscopurpurea by Jingna Wu, Xiaoting Chen, Kun Qiao, Yongchang Su, Zhiyu Liu

    Published 2021-01-01
    “…The structural characteristics of BFP-3 were investigated by chemical and spectroscopic methods, including partial acid hydrolysis, methylation analysis, one- and two-dimensional nuclear magnetic resonance, and gas chromatography-mass spectrometry. …”
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    Article
  13. 153

    Deciphering Metabolic Responses in Traumatic Brain Injury Patients With Different Severity Using 1H NMR-Based Serum Metabolomics by Huan Zhou, Dongdong Sun, Dongmei Wang, Zirui Zhu, Xuelian Hong, Rui Fang, Hua Wang, Minghui Li

    Published 2025-01-01
    “…In order to elucidate the underlying pathophysiologic mechanisms and identify serum biomarkers associated with TBI, we conducted a comprehensive investigation utilizing a 1H nuclear magnetic resonance (NMR)–based metabolomics approach and ELISA analysis of serum samples obtained within 24 h postinjury from a cohort of participants with varying degrees of TBI severity. …”
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    Article
  14. 154

    Blasting-Induced Permeability Enhancement of Ore Deposits Associated with Low-Permeability Weakly Weathered Granites Based on the Split Hopkinson Pressure Bar by Lei Yan, Wenhua Yi, Liansheng Liu, Jiangchao Liu, Shenghui Zhang

    Published 2018-01-01
    “…By combining nuclear magnetic resonance (NMR) and triaxial seepage tests, this study investigated the change laws in the mechanical properties, porosity evolution, and permeability coefficients of the samples under cyclic impacts. …”
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    Article
  15. 155

    Effect of Bentonite Prehydration Time on the Stability of Lightweight Oil-Well Cement System by Stephen Adjei, Salaheldin Elkatatny, Abdulaziz Al-Majed

    Published 2021-01-01
    “…Density measurements and pore space analysis with the nuclear magnetic resonance (NMR) technique were used to investigate the homogeneity of cement-based cores. …”
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    Article
  16. 156

    Benchtop 1H NMR spectroscopy as a practical tool for characterization of chemically ex-changing systems in Ascorbic acid by Sevil Cikrikci

    Published 2021-03-01
    “…Nuclear magnetic resonance (NMR) spectra and its action on characterization of pH dependent systems are among the most useful tools in spectroscopic techniques. …”
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    Article
  17. 157

    A Promising Material by Using Residue Waste from Bisphenol A Manufacturing to Prepare Fluid-Loss-Control Additive in Oil Well Drilling Fluid by Zhi-Lei Zhang, Feng-Shan Zhou, Yi-He Zhang, Hong-Wei Huang, Ji-Wu Shang, Li Yu, Hong-Zhen Wang, Wang-Shu Tong

    Published 2013-01-01
    “…Fourier transform infrared (FTIR) spectroscopy, gas chromatography-mass spectrometry (GC-MS), and nuclear magnetic resonance (NMR) were used to characterize the residues. …”
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  18. 158

    Time-Varying Compressive Strength Model of Aeolian Sand Concrete considering the Harmful Pore Ratio Variation and Heterogeneous Nucleation Effect by Yugen Li, Huimei Zhang, Xiaoyu Liu, Guangxiu Liu, Dawei Hu, Xiangzhen Meng

    Published 2019-01-01
    “…Influence mechanism of aeolian sand on the strength of concrete was revealed by using the nuclear magnetic resonance (NMR) to analyze the pore ratio and structures of aeolian sand concrete (ASC) and using the X-ray single crystal diffraction (XRD) to calculate the relative contents of hydration products semiquantitatively. …”
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    Article
  19. 159

    Method of Calculating Secondary Porosity of Reef Limestone Reservoir by Casting Thin Section Calibrating Nuclear Magnetic T2 Spectrum by Bin Zhao, Zhaoping Li, Chuqiao Gao, Guoyi Zhang, Jinbo Wu, Gang Gao, Yang Tang

    Published 2021-01-01
    “…We present a new method for calculating secondary porosity of reef limestone reservoir by the nuclear magnetic resonance T2 spectrum which is calibrated by casting thin section. …”
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  20. 160

    Identification of Imitation Cheese and Imitation Ice Cream Based on Vegetable Fat Using NMR Spectroscopy and Chemometrics by Yulia B. Monakhova, Rolf Godelmann, Claudia Andlauer, Thomas Kuballa, Dirk W. Lachenmeier

    Published 2013-01-01
    “…In this study, 400 MHz nuclear magnetic resonance (NMR) spectroscopy of the fat fraction of the products was used in the context of food surveillance to validate the labeling of milk-based products. …”
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    Article