Showing 581 - 600 results of 969 for search '"liquid chromatography"', query time: 0.09s Refine Results
  1. 581

    High-resolution mass spectrometry measurement of N-terminal carbamylated hemoglobin as a potential marker for chronic diseases with elevated blood urea levels by Fangjun Chen, Priscilla S.-W. Yeung, Carolyn V. Wong, Ruben Y. Luo

    Published 2025-01-01
    “…Introduction: N-terminal carbamylated hemoglobin (CarHb) reflects long-term blood urea levels and has potential as a marker for chronic kidney disease (CKD) and other chronic conditions with elevated blood urea levels. A liquid chromatography-high-resolution mass spectrometry (LC-HR-MS) method was developed to measure CarHb. …”
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  2. 582

    Journal of Food Quality Evaluation of Effect of Extraction Solvent on Selected Properties of Olive Leaf Extract by Won-Young Cho, Da-Hee Kim, Ha-Jung Lee, Su-Jung Yeon, Chi-Ho Lee

    Published 2020-01-01
    “…Extracts were analyzed for their oleuropein, hydroxytyrosol, and tyrosol contents by high-performance liquid chromatography (HPLC). The highest extraction yield of 20.41% was obtained when using 90 vol% methanol, while the highest total polyphenol contents of 232 and 231 mggallic-acid-equivalent/100 g were obtained for 90 vol% methanol and 90 vol% ethanol, respectively. …”
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  3. 583

    Resistance of Biomphalaria alexandrina to Schistosoma mansoni and Bulinus truncatus to Schistosoma haematobium Correlates with Unsaturated Fatty Acid Levels in the Snail Soft Tissu... by Marian Elias, Rasha S. Hanafi, Samia El-Bardicy, Ebtisam A. Hafez, Rashika El Ridi

    Published 2020-01-01
    “…Snails were examined for presence or lack of infection association with soft tissue and hemolymph content of proteins, cholesterol, and triglycerides, evaluated using standard biochemical techniques and palmitic, oleic, linoleic, and arachidonic acid, assayed by ultraperformance liquid chromatography-tandem mass spectrometry. Successful schistosome infection of B. alexandrina and B. truncatus consistently and reproducibly correlated with snails showing highly significant (up to P<0.0001) decrease in soft tissue and hemolymph content of the monounsaturated fatty acid, oleic acid, and the polyunsaturated fatty acids, linoleic, and arachidonic acids as compared to naïve snails. …”
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  4. 584

    Cobalamin and Folic Acid Status in Relation to the Etiopathogenesis of Pancytopenia in Adults at a Tertiary Care Centre in North India by M. Premkumar, N. Gupta, T. Singh, T. Velpandian

    Published 2012-01-01
    “…Bone marrow examination and other tests were carried out as warranted, including serum cobalamin and folate assays using liquid chromatography mass spectroscopy (LC MS/MS). Results. …”
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  5. 585

    Green Extraction of Phenolic Compounds from <i>Aronia melanocarpa</i> Using Deep Eutectic Solvents and Antioxidant Activity Investigation by Maja Molnar, Martina Jakovljević Kovač, Lidija Jakobek, Lovro Mihajlović, Valentina Pavić

    Published 2024-12-01
    “…High-performance liquid chromatography (HPLC) quantified key phenolic compounds, including neochlorogenic and chlorogenic acid, quercetin derivatives, and cyanidin derivatives, as well as total phenolic acids, flavanols, and anthocyanins. …”
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  6. 586
  7. 587

    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
    “…Long-term enhanced ultraviolet-B (UV-B) radiation caused more effect on leaves than on roots of the plant. 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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  8. 588

    Purification, characterization and hypoglycemic activity of glycoproteins obtained from pea (Pisum sativum L.) by Gaoyixin Qin, Wu Xu, Junping Liu, Liyan Zhao, Guitang Chen

    Published 2021-05-01
    “…The physical and chemical properties of the three fractions were evaluated and compared by Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), scanning electron microscope (SEM), high performance liquid chromatography (HPLC) and other analytical techniques. …”
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  9. 589

    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). …”
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  10. 590

    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. …”
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  11. 591

    Association of immunoglobulin G N-glycosylation with carotid atherosclerotic plaque phenotypes and actual clinical cardiovascular events: a study protocol for a longitudinal prospe... by Gehendra Mahara, Hongxia Zhang, Cuihong Tian, Xuerui Tan

    Published 2022-07-01
    “…Ultra-performance liquid chromatography will be performed to separate and detect IgG N-glycans in serum collected at baseline and at the end of the first, second and third years. …”
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  12. 592

    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
    “…In this way, the present study was performed to evaluate the phenolic compounds and flavonoids of Fusarium oxysporum and Fusarium solani qualitatively and quantitatively via high-performance liquid chromatography (HPLC). 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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  13. 593

    Separation, Purification, Structural Characterization and in Vitro Antioxidant Activity of Low Molecular Mass Fucoidans by YU Fan, GUO Yingying, LI Na, DAI Xinyue, ZHU Wenjia, YAO Lin, JIANG Yanhua, WANG Lianzhu

    Published 2025-01-01
    “…The chemical composition and structure characteristics of LMWFs were analyzed using molecular exclusion chromatography (MEC), high performance liquid chromatography (HPLC), infrared spectroscopy (IRS) and nuclear magnetic resonance spectroscopy (NMRS), and the structure-antioxidant activity relationship was explored. …”
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  14. 594

    Association between serum carotenoids levels and endometriosis risk: evidence from the National Health and Nutrition Examination Survey by Jian Huang

    Published 2025-02-01
    “…Serum levels of α-carotene, β-carotene, β-cryptoxanthin, lutein/zeaxanthin, and trans-lycopene were measured using high performance liquid chromatography (HPLC) with photodiode array detection. …”
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  15. 595

    Discovery of Antimalarial Drugs from Streptomycetes Metabolites Using a Metabolomic Approach by Siti Junaidah Ahmad, Mohd Badrin Hanizam Abdul Rahim, Syarul Nataqain Baharum, Mohd Shukri Baba, Noraziah Mohamad Zin

    Published 2017-01-01
    “…The highly sensitive instruments, such as Liquid Chromatography-Mass Spectrophotometry (LC-MS), Gas Chromatography-Mass Spectrophotometry (GC-MS), and Nuclear Magnetic Resonance (1H-NMR) spectroscopy, provide a wide range of information in the identification of potentially bioactive compounds. …”
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  16. 596

    Response Surface Optimization of a Rapid Ultrasound-Assisted Extraction Method for Simultaneous Determination of Tetracycline Antibiotics in Manure by Lanqing Li, Mingxing Sun, Hui Zhou, Yun Zhou, Ping Chen, Hong Min, Guoqing Shen

    Published 2015-01-01
    “…The analytes were determined using high-performance liquid chromatography with ultraviolet detector. The influence of several variables on the efficiency of the extraction procedure was investigated by single-factor experiments. …”
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  17. 597

    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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  18. 598

    Carbonized Aramid Fiber as the Adsorbent for In-Tube Solid-Phase Microextraction to Detect Estrogens in Water Samples by Xiaoxiao Zhu, Yijun Zhang, Pengfei Liu, Xiuzhi Bai, Na Chen, Yuping Zhang

    Published 2021-01-01
    “…The prepared fiber was packed in a stainless-steel tube instead of the sample loop of a six-port and tested for the extraction of five environmental estrogen hormones coupled with high-performance liquid chromatography. Several parameters affecting the estrogens’ extraction including the sampling volume, sampling rate, NaCl content, and desorption time were investigated in detail. …”
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  19. 599

    Valorization of Food Waste to Produce Eco-Friendly Means of Corrosion Protection and “Green” Synthesis of Nanoparticles by Georgii Vasyliev, Victoria Vorobyova

    Published 2020-01-01
    “…The waste extracts to produce nanoparticles were prepared by the ultrasound-assisted water extraction with subsequent oxidation by oxygen purge and characterized by liquid chromatography-mass spectroscopy (LC-MS). The aqueous grape pomace and pomegranate peel extracts were screened for total phenolic content (TPC) and total flavonoid content (TFC). …”
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  20. 600

    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. …”
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