Showing 241 - 260 results of 487 for search '"Ionization"', query time: 0.05s Refine Results
  1. 241

    Detection of early relapse in multiple myeloma patients by Tereza Růžičková, Monika Vlachová, Lukáš Pečinka, Monika Brychtová, Marek Večeřa, Lenka Radová, Simona Ševčíková, Marie Jarošová, Josef Havel, Luděk Pour, Sabina Ševčíková

    Published 2025-01-01
    “…At the same time, differences in the mass spectra between groups were identified using matrix-assisted laser desorption/ionization time of flight mass spectrometry. All results were analyzed by machine learning. …”
    Get full text
    Article
  2. 242

    Influences of multi-pass friction stir alloying on characterization of AZ91D alloy-based dual reinforcement bio-ceramic nano-composites by Surendra Kumar Patel, Guoxin Dai, Lu Liu, Zhen Sun, Lei Shi

    Published 2025-01-01
    “…The typically worn surface revealed reduced deep pits, pits and cracks due to better ionization of the hydrogen generated during immersion. …”
    Get full text
    Article
  3. 243

    Determination of Carrageenan in Livestock and Poultry Meat by Ultrahigh-Performance Liquid Chromatography-Tandem Mass Spectrometry by Yanqin Sun, Xudong Zhu, Xixi Shen, Wei Wang

    Published 2021-01-01
    “…The quantitative analysis was executed using a triple quadrupole mass spectrometer in which electrospray ionization, multiple reaction monitoring, and negative mode were operated. …”
    Get full text
    Article
  4. 244

    Characterization of phenolic compounds and evaluation of anti-diabetic potential in Cannabis sativa L. seeds: In vivo, in vitro, and in silico studies by El-Mernissi Rafik, El Menyiy Naoual, Metouekel Amira, Zouhri Aziz, El-Mernissi Yahya, Siddique Farhan, Nadeem Sumaira, Amhamdi Hassan, Abboussi Oualid, Alsahli Abdulaziz Abdullah, Bourhia Mohammed, Dauelbait Musaab, Shazly Gamal A., Hajji Lhoussain

    Published 2024-12-01
    “…Ultra-high-performance liquid chromatography with diode array detection and electrospray ionization mass spectrometry analysis revealed a rich phenolic composition, including benzoic acid, cannabisin B, genistein, and epicatechin. …”
    Get full text
    Article
  5. 245

    X-ray emission from hot gas and XRBs in the NGC 5846 galaxy by Kyadampure Anil, Vagshette Nilkanth, Patil Madhav

    Published 2025-01-01
    “…The larger values of emission line flux density ratio log([N II]Hα\alpha ) and floor in the entropy profile of the plasma collectively point toward a nonthermal ionization source of gas heating like a low-level AGN activity.…”
    Get full text
    Article
  6. 246

    Effects of Soursop flowers (Annona muricata L.) extract on chemical changes of refined palm olein stored at frying temperature by Tonfack Djikeng Fabrice, Womeni Hilaire Macaire, Bala Krishna Marrapu, Mallampalli Sri Lakshmi Karuna, Rachapudi Badari Narayana Prasad, Linder Michel

    Published 2017-12-01
    “…Additionally, the evolution of the fatty acid composition of each oil sample during the storage was assessed by gas-chromatography using a flame ionization detector (GC/FID). Generally, palm olein samples containing the natural extract have exhibited the lowest rate of oxidation, and were efficient in limiting the destruction of unsaturated fatty acids in oil at frying temperature. …”
    Get full text
    Article
  7. 247

    Pharmacokinetics and Bioavailability Study of Tubeimoside I in ICR Mice by UPLC-MS/MS by Lianguo Chen, Qinghua Weng, Feifei Li, Jinlai Liu, Xueliang Zhang, Yunfang Zhou

    Published 2018-01-01
    “…The TBMS-I and ardisiacrispin A (internal standard (IS)) were quantitatively detected by a tandem mass spectrometry equipped with an electrospray ionization (ESI) in a positive mode by multiple reaction monitoring (MRM). …”
    Get full text
    Article
  8. 248

    Unveiling cellular changes in leukaemia cell lines after cannabidiol treatment through lipidomics by David Chamoso-Sanchez, Martina Panini, Clarissa Caroli, Matilde Marani, Lorenzo Corsi, Francisco J Rupérez, Antonia Garcia, Federica Pellati

    Published 2025-01-01
    “…After the extraction of the lipid content from cell lysates, the samples were analysed by UHPLC-QTOF-MS/MS both in the positive and the negative ionization modes. The comprehensive characterization of cellular lipids unveiled several classes significantly affected by CBD treatment. …”
    Get full text
    Article
  9. 249

    Pharmacokinetics of Eight Flavonoids in Rats Assayed by UPLC-MS/MS after Oral Administration of Drynariae rhizoma Extract by Zhan-Ling Xu, Ming-Yue Xu, Hai-Tao Wang, Qing-Xuan Xu, Ming-Yang Liu, Chun-Peng Jia, Fang Geng, Ning Zhang

    Published 2018-01-01
    “…The detection was performed using a triple quadrupole tandem mass spectrometer equipped with an electrospray ionization interface (ESI) by multiple reaction monitoring (MRM) in the positive ion mode. …”
    Get full text
    Article
  10. 250

    Cell-free supernatants from plant growth-promoting rhizobacteria Bacillus albus strains control Aspergillus flavus disease in peanut and maize seedlings by Lai Loi Trinh, Kim Ngoc Le, Hoang Anh Le Lam, Hoai Huong Nguyen

    Published 2025-01-01
    “…These were characterized using rapid chemical assays and ultra-high-performance liquid chromatography-electrospray ionization-quadrupole time-of-flight/mass spectrometry (UHPLC-ESI-QTOF/MS), combined with bioinformatic tools such as Global Natural Product Social Molecular Networking (GNPS) and Natural Products Atlas (NPAtlas). …”
    Get full text
    Article
  11. 251

    Assessment of the Chemical Diversity and Functional Properties of Secondary Metabolites from the Marine Fungus <i>Asteromyces cruciatus</i> by María Paz González-Troncoso, Catalina Landeta-Salgado, Javiera Munizaga, Ruth Hornedo-Ortega, María del Carmen García-Parrilla, María Elena Lienqueo

    Published 2024-12-01
    “…Crude extracts of fungal biomass were analyzed for total phenolic content (TPC), antioxidant capacity (TAC), toxicity, and phenolic compound identification using ultra-high-performance liquid chromatography coupled with high-resolution electrospray ionization mass spectrometry (UHPLC-MS/MS). The analysis revealed the presence of anthraquinone compounds, including emodin (0.36 ± 0.08 mg/g DW biomass) and citrereosein in glucose medium and citrereosein and endocrocin in <i>M. pyrifera</i> medium. …”
    Get full text
    Article
  12. 252

    Evaluation of Antibiotic Resistance and Biofilm Production among Clinical Strain Isolated from Medical Devices by Veronica Folliero, Gianluigi Franci, Federica Dell’Annunziata, Rosa Giugliano, Francesco Foglia, Rossella Sperlongano, Anna De Filippis, Emiliana Finamore, Massimiliano Galdiero

    Published 2021-01-01
    “…Identification of isolates and antibiotic susceptibility testing were performed using Matrix Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-TOF MS) and Phoenix Becton Dickinson, respectively. …”
    Get full text
    Article
  13. 253

    Biotechnological Approach for Development and Characterization of Protein Feed for <i>Melipona quadrifasciata</i> by Patrícia Miranda-Pinto, Jullio Kennedy Castro Soares, Irys Hany Lima Gonzalez, Yuri Ribeiro Diogo, Lívia Soman de Medeiros, Luciana Chagas Caperuto, Patrícia Locosque Ramos, Tiago Maurício Francoy, Michelle Manfrini Morais

    Published 2025-01-01
    “…The metabolomic analysis identified 85 compounds in positive and 102 in negative ionization modes. Shared metabolites, such as isoquercetin and palatinose, highlighted similarities between the feed and natural fermented pollen. …”
    Get full text
    Article
  14. 254

    Simultaneous Quantification of Aspirin, Its Metabolite Salicylic Acid, and Salvianolic Acid B in Human Plasma Using UPLC-MS/MS by Weiyi Cao, Hezhi Yao, Zhenzhen Qian, Yi Wu, Shuge Wang, Rui Li, Rui Gao

    Published 2021-01-01
    “…Salvianolic acid B, acetylsalicylic acid, and salicylic acid were quantified in multiple-reaction monitoring mode with negative ion electrospray ionization. The method was fully validated according to the current regulatory guidance for bioanalysis. …”
    Get full text
    Article
  15. 255

    Antioxidant and Chelating Activity of Nontoxic Jatropha curcas L. Protein Hydrolysates Produced by In Vitro Digestion Using Pepsin and Pancreatin by Santiago Gallegos Tintoré, Cristina Torres Fuentes, Javier Solorza Feria, Manuel Alaiz, Julio Girón Calle, Alma Leticia Martínez Ayala, Luis Chel Guerrero, Javier Vioque

    Published 2015-01-01
    “…Peptidic fractions with higher radical scavenging activity were analysed by matrix-assisted laser desorption/ionization mass spectrometry. The antioxidant activity was determined by measuring inhibition of the oxidative degradation of β-carotene and by measuring the reactive oxygen species (ROS) in Caco-2 cell cultures. …”
    Get full text
    Article
  16. 256

    Identification of Potential Serum Metabolic Biomarkers of Diabetic Kidney Disease: A Widely Targeted Metabolomics Study by Hang Zhang, Jing-jing Zuo, Si-si Dong, Yuan Lan, Chen-wei Wu, Guang-yun Mao, Chao Zheng

    Published 2020-01-01
    “…The ultraperformance liquid chromatography-electrospray ionization-tandem mass spectrometry system was applied for the assessment of the serum metabolic profiles. …”
    Get full text
    Article
  17. 257

    Pharmacokinetic Analysis of Diosgenin in Rat Plasma by a UPLC-MS/MS Approach by Pei Liu, Lin Xu, Jing-han Guo, Jin-hua Chang, Xi-gang Liu, He-fei Xue, Ru-xing Wang, Zhong-si Li, Guang-xin Miao, Cui-zhe Liu, Jian-yu Zhou

    Published 2022-01-01
    “…MS with positive electron spray ionization in multiple reaction monitoring modes was applied to determine diosgenin and IS with m/z 415.2⟶271.2 and m/z 295.2⟶277.1, respectively. …”
    Get full text
    Article
  18. 258

    Development and Application of a LC-MS/MS Method for Simultaneous Quantification of Four First-Line Antituberculosis Drugs in Human Serum by Yunliang Zheng, Nana Xu, Xingjiang Hu, Qiao Zhang, Yanpeng Liu, Qingwei Zhao

    Published 2020-01-01
    “…MS detection was performed by a triple quadrupole tandem mass spectrometer in the multiple reaction monitoring mode with a positive electrospray ionization source. Isotope-labeled internal standard, especially rifampicin-D8, was applied to adjust for the loss during sample treatment. …”
    Get full text
    Article
  19. 259

    The transport of polyphenols from Camellia fascicularis in Caco-2 cells based on UPLC-ESI-MS/MS by Shengjiang Duan, Hao Zheng, Junrong Tang, Huan Kan, Changwei Cao, Zhijiao Shi, Yun Liu

    Published 2025-01-01
    “…Herein, digestion samples (DS) of C. fascicularis polyphenols (CFPs) were metabolically analyzed based on their bidirectional translocation in Caco-2 cells using ultraperformance liquid chromatography-electrospray ionization-tandem mass spectrometry. The results indicated that after DS transported via Caco-2 cell monolayer models nine polyphenol compounds in transit solution (TSB) from apical (AP) to basolateral (BL) side were upregulated, whereas seven in the transit solution (TSA) from BL to AP side were upregulated. …”
    Get full text
    Article
  20. 260

    Comparative analysis of phytonutrients of Moringa oleifera leaves from South Africa and Nigeria, and their antimicrobial and antioxidant potentials by UPLC-ESI-QToF-MS and OPLS-DA... by Jonathan Kayembe, Cosa Sekelwa, Kokoette Bassey

    Published 2025-01-01
    “…This study aimed to conduct a comparative analysis of the phytonutrients (nutrients protectors) or supplements, antioxidant, and antimicrobial potentials of M. oleifera leaves from Nigeria and South Africa to benchmark quality control protocols for commercial beverages such as Moringa porridge.MethodsStandard techniques, including high-performance liquid chromatography-photodiode array and ultra-high-performance liquid chromatography electrospray ionization quadruple time-of-flight mass spectrometry (UPLC-ESI-QToF-MS) and chemometrics orthogonal partial least square discriminant analysis (OPLS-DA) were employed for phytoconstituents fingerprinting. …”
    Get full text
    Article