Showing 901 - 920 results of 1,443 for search '"mass spectrometry"', query time: 0.08s Refine Results
  1. 901

    Simultaneous Quantitative and Qualitative Analysis of Flavonoids from Ultraviolet-B Radiation in Leaves and Roots of Scutellaria baicalensis Georgi Using LC-UV-ESI-Q/TOF/MS by Wen-Ting Tang, Min-Feng Fang, Xiao Liu, Ming Yue

    Published 2014-01-01
    “…Liquid chromatography-ultraviolet detection coupled with electrospray ionization quadrupole time-of-flight mass spectrometry (LC-UV-ESI-Q/TOF/MS) method was applied for simultaneous quantitative and qualitative analysis of flavonoids in leaves and roots of S. baicalensis by enhanced UV-B radiation. …”
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  2. 902

    Comparative proteomic analysis of astrocytoma tissues from patients with and without seizures by Thanakorn Khaosuwan, Kittinun Leetanaporn, Pongsakorn Choochuen, Raphatphorn Navakanitworakul, Anukoon Kaewborisutsakul, Thara Tunthanatip, Surasak Sangkhathat, Wararat Chiangjong, Kanitpong Phabphal

    Published 2025-01-01
    “…In this study, we performed proteomic analysis of astrocytoma tissue from patients with and without seizures using mass spectrometry-based techniques. We detected 131 differentially expressed proteins (42 upregulated and 89 downregulated). …”
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  3. 903

    Incorporation of recombinant proteins into extracellular vesicles by Lactococcus cremoris by Tina Vida Plavec, Kristina Žagar Soderžnik, Giulia Della Pelle, Špela Zupančič, Robert Vidmar, Aleš Berlec

    Published 2025-01-01
    “…The presence of vesicular structures (50–200 nm) in the samples was confirmed by transmission electron microscopy and by flow cytometry using membrane-specific stain. Mass spectrometry analyses confirmed the presence of recombinant proteins in the EVs fraction, with amounts ranging from 13.17 to 100%, highlighting their significant incorporation into the vesicles, together with intrinsic L. cremoris NZ9000 proteins that were either more abundant in the cytoplasm (ribosomal proteins, metabolic enzymes) or present in the membrane. …”
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  4. 904

    Systematic application of UPLC-Q-ToF-MS/MS coupled with chemometrics for the identification of natural food pigments from Davidson plum and native currant by Thomas Owen Hay, Melissa A. Fitzgerald, Joseph Robert Nastasi

    Published 2025-01-01
    “…The species were quantitatively assessed for colour properties using the CIELAB colour system in conjunction with Ultra Performance Liquid Chromatography-Quadrupole Time of Flight Tandem Mass Spectrometry (UPLC-Q-ToF-MS/MS). The results highlight diverse phenolic, flavonoid, and significant anthocyanin levels in Davidson plum and native currant, contributing to their robust red hues, comparable to commercial blueberry standards. …”
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  5. 905

    Lipidomic Signature of Pregnant and Postpartum Females by Longitudinal and Transversal Evaluation: Putative Biomarkers Determined by UHPLC-QTOF-ESI<sup>+</sup>-MS by Alexandra Traila, Marius Craina, Carmen Socaciu, Andreea Iulia Socaciu, Diana Nitusca, Catalin Marian

    Published 2025-01-01
    “…While metabolomics has been utilized to study pregnancy-related metabolic changes, comprehensive comparisons between pregnant and non-pregnant states, particularly using ultra-high-performance liquid chromatography coupled with mass spectrometry (UHPLC-MS), remain limited. Methods: This study aimed to explore the dynamic, longitudinal metabolic shifts during pregnancy by profiling plasma samples from 65 pregnant women across three time points (6–14 weeks, 14–22 weeks, and >24 weeks) and 42 postpartum women. …”
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  6. 906

    Fusarium oxysporum & Fusarium solani: Identification, Characterization, and Differentiation the Fungal Phenolic Profiles by HPLC and the Fungal Lipid Profiles by GC-MS by Nashwa M. Shalapy, Wenyi Kang

    Published 2022-01-01
    “…Moreover, lipid criteria of Fusarium oxysporum and Fusarium solani extracts had been displayed by gas chromatography-mass spectrometry (GC-MS) and their fatty acids had been identified to define the prolific species of the most biological and valuable fatty acids. …”
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  7. 907

    Differentiation and characterization of volatile compounds in five common milk powders using HS-GC-IMS, HS-SPME-GC–MS, and multivariate statistical approaches by Yaxi Zhou, Diandian Wang, Jian Zhao, Yu Guo, Wenjie Yan

    Published 2025-01-01
    “…This study analysed and identified the flavor characteristics of five common types of milk powders in China, including yak milk powder, donkey milk powder, camel milk powder, goat milk powder, and cow milk powder, using Headspace-Gas Chromatography-Ion Mobility Spectrometry (HS-GC-IMS), Headspace Solid-Phase Microextraction-Gas Chromatography-Mass Spectrometry (HS-SPME-GC–MS), and multivariate statistical analysis. …”
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  8. 908

    Comparative Pharmacokinetic Study of Three Major Bioactive Components in the Normal and Different Courses of Liver-Stagnation and Spleen-Deficiency Syndrome Depressive Rats after I... by Kaiwen Luo, Mengdie Wang, Xiangxiang Pan, Yadong Xing

    Published 2022-01-01
    “…To reveal the pharmacokinetic process of narirutin, naringin, and honokiol in normal and different courses of liver-stagnation and spleen-deficiency syndrome depressive rats after intragastric administration of Zhi-Zi-Hou-Po decoction (ZZHPD), a rapid ultra-high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) method was proposed in this study. …”
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  9. 909

    PFAS contamination in tap water: Target and suspect screening of zwitterionic, cationic, and anionic species across Canada and beyond by Termeh Teymoorian, Gabriel Munoz, Sébastien Sauvé

    Published 2025-01-01
    “…An additional ∼ 200 suspect-target PFAS were screened using high-resolution Orbitrap mass spectrometry. The results revealed widespread contamination of PFAS in tap water. …”
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  10. 910

    Prediction of COD Degradation in Fenton Oxidation Treatment of Kitchen Anaerobic Wastewater Based on IPSO-BP Neural Network by Tianpeng Zhang, Pengfei Ji, Dayong Tian, Rui Xu

    Published 2025-01-01
    “…Through gas chromatography-mass spectrometry (GC-MS) analysis, most organic compounds in kitchen anaerobic wastewater are oxidized and decomposed, indicating that the IPSO-BP model has good predictive quality.…”
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  11. 911

    Chemical Composition and Cytotoxic and Antioxidant Activities of Satureja montana L. Essential Oil and Its Antibacterial Potential against Salmonella Spp. Strains by Hanene Miladi, Rihab Ben Slama, Donia Mili, Sami Zouari, Amina Bakhrouf, Emna Ammar

    Published 2013-01-01
    “…The plant was collected from south France mountain, and its EO was extracted by hydrodistillation (HD) and analysed by gas chromatography/mass spectrometry (GC/MS). Thirty-two compounds were identified accounting for 99.85% of the total oil, where oxygenated monoterpenes constituted the main chemical class (59.11%). …”
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  12. 912

    Chronological Classification of Ancient Mortars Employing Spectroscopy and Spectrometry Techniques: Sagunto (Valencia, Spain) Case by M. Ramacciotti, S. Rubio, G. Gallello, M. Lezzerini, S. Columbu, E. Hernandez, A. Morales-Rubio, A. Pastor, M. de la Guardia

    Published 2018-01-01
    “…Forty-two mortar samples, from two archaeological excavations located in Sagunto (Valencian Community, Spain), were analysed by both portable energy dispersive X-ray fluorescence spectroscopy (pED-XRF) and inductively coupled plasma mass spectrometry (ICP-MS) to determine major and minor elements and traces including rare earth elements (REEs). …”
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  13. 913

    Phytochemical Constituents and Antioxidant Activity of Sweet Basil (Ocimum basilicum L.) Essential Oil on Ground Beef from Boran and Nguni Cattle by Andrew Bamidele Falowo, Felicitas Esnart Mukumbo, Emrobowansan Monday Idamokoro, Anthony Jide Afolayan, Voster Muchenje

    Published 2019-01-01
    “…The phytoconstituents of SBEO were analyzed by gas chromatography mass spectrometry. Thereafter, minced beef samples from Nguni and Boran cattle were treated with either no additives (control, C) or SBEO added at 2% (SB2), 4% (SB4), or 6% (SB6). …”
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  14. 914

    Functional-proteomics-based investigation of the cellular response to farnesyltransferase inhibition in lung cancer by Yanbo Pan, Olena Berkovska, Soumitra Marathe, Georgios Mermelekas, Greta Gudoityte, Amare D. Wolide, Taner Arslan, Brinton Seashore-Ludlow, Janne Lehtiö, Lukas M. Orre

    Published 2025-02-01
    “…Using metabolic labeling and mass spectrometry, we identified farnesylated proteins and mapped their subcellular localization. …”
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  15. 915

    Fatty Acid Composition, Phospholipid Molecules, and Bioactivities of Lipids of the Mud Crab Scylla paramamosain by Thi Phuong Lan Nguyen, Van Tuyen Anh Nguyen, Thi Thanh Trung Do, Trung Nguyen Quang, Quoc Long Pham, Tat Thanh Le

    Published 2020-01-01
    “…The composition and molecular forms of the phospholipids were identified using high-performance liquid chromatography-high-resolution mass spectrometry. Fifty-four different molecules belonging to six types of phospholipids were identified. …”
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  16. 916

    Comparative lipidome and transcriptome provide novel insights into zero-valent iron nanoparticle-treated Fremyella diplosiphon by Yavuz S. Yalcin, Samson Gichuki, Huan Chen, Anithachristy Sigamani Arumanayagam, Shyama Malika Malwalage, Viji Sitther

    Published 2024-11-01
    “…Comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry revealed a 20–25% higher percentage of FAMEs in nZVI-treated F. diplosiphon strain B481-SD compared to B481-WT. …”
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  17. 917
  18. 918

    Prevalence and methodologies for detection, characterization and subtyping of Listeria monocytogenes and L. ivanovii in foods and environmental sources by Jin-Qiang Chen, Patrick Regan, Pongpan Laksanalamai, Stephanie Healey, Zonglin Hu

    Published 2017-09-01
    “…In this review, we (A) described L. monocytogenes and L. ivanovii, world-wide incidence of listeriosis, and prevalence of various L. monocytogenes strains in food and environmental sources; (B) comprehensively reviewed different types of traditional and newly developed methodologies, including culture-based, antigen/antibody-based, LOOP-mediated isothermal amplification, matrix-assisted laser desorption ionization-time of flight-mass spectrometry, DNA microarray, and genomic sequencing for detection and characterization of L. monocytogenes in foods and environmental sources; (C) comprehensively summarized different subtyping methodologies, including pulsed-field gel electrophoresis, multi-locus sequence typing, ribotyping, and phage-typing, and whole genomic sequencing etc. for subtyping of L. monocytogenes strains from food and environmental sources; and (D) described the applications of these methodologies in detection and subtyping of L. monocytogenes in foods and food processing facilities.…”
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  19. 919

    An untargeted metabolomic analysis of acute AFB1 treatment in liver, breast, and lung cells. by Heidi H Cao, Sabrina Molina, Susan Sumner, Blake R Rushing

    Published 2025-01-01
    “…Treated and control cells' metabolomic profiles were evaluated via ultra-high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS). Univariate and multivariate analyses revealed significant alterations in metabolite concentrations from each dose of AFB1 treatment in each cell type. …”
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  20. 920