Showing 401 - 420 results of 969 for search '"liquid chromatography"', query time: 0.06s Refine Results
  1. 401

    Phytochemical evaluation and antioxidant potential of Echinodorus macrophyllus extracts by Antônio Lisboa Ribeiro, Marcus Vinícius Gonçalves Antunes, Christiane Fátima Oliveira, Rafaela Camargos Rodrigues Machado, Rafael Rodrigues Silva, Brayan Jonas Mano-Sousa, Lucas Santos Azevedo, Joaquim Mauricio Duarte-Almeida, Luciana Alves Rodrigues dos Santos Lima

    Published 2025-01-01
    “…Analysis by thin-layer chromatography (TLC) and high-performance liquid chromatography with a diode array detector (HPLC-DAD) evidenced the presence of cinnamic acid derivatives, flavones, and flavanones in the extracts. …”
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    Article
  2. 402

    Antiplasmodial Properties and Bioassay-Guided Fractionation of Ethyl Acetate Extracts from Carica papaya Leaves by Paula Melariri, William Campbell, Paschal Etusim, Peter Smith

    Published 2011-01-01
    “…Carica papaya ethyl acetate extract was subjected to bioassay-guided fractionation to ascertain the most active fraction, which was purified and identified using high-pressure liquid chromatography (HPLC) and GC-MS (Gas chromatography-Mass spectrometry) methods. …”
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    Article
  3. 403

    Biochemical Constituent of Ginkgo biloba (Seed) 80% Methanol Extract Inhibits Cholinesterase Enzymes in Javanese Medaka (Oryzias javanicus) Model by Ibrahim Hassan, Wan Norhamidah Wan Ibrahim, Ferdaus Mohamat Yusuf, Siti Aqlima Ahmad, Syahida Ahmad

    Published 2020-01-01
    “…Phytochemical study to identify the bioactive lead constituents of the crude extract was also carried out using high performance liquid chromatography (HPLC). Results. The result shows activities with high significant differences at P<0.001 between the treated and nontreated groups. …”
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    Article
  4. 404

    Occurrence and Risk Assessment of Tetracycline Residues in Layer Eggs in Haryana, India by Khushbu Bishnoi, Pallavi Moudgil, Deepak Soni, Vijay J. Jadhav

    Published 2025-02-01
    “…A total of 100 pooled egg samples were analyzed using High-Performance Liquid Chromatography with Ultraviolet detector for the detection of tetracycline group residues. …”
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    Article
  5. 405

    A Fast and Validated HPLC Method for the Simultaneous Analysis of Five 5-HT3 Receptor Antagonists via the Quantitative Analysis of Multicomponents by a Single Marker by Fuchao Chen, Baoxia Fang, Peng Li, Sicen Wang

    Published 2021-01-01
    “…In this study, a new strategy for the simultaneous quantization of five serotonin 5-hydroxytryptamine receptor antagonists—ondansetron, azasetron, ramosetron, granisetron, and tropisetron—either in infusion samples or in injection dosage form was first established based on high-performance liquid chromatography combined with a quantitative analysis of multiple components by a single marker. …”
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  6. 406

    Erythrocyte Storage Lesion Improvements Mediated by Naringin Screened from Vegetable/Fruit Juice Using Cell Extract and HPLC-MS by Yuqi She, Qiong Liu, Xiyue Xiong, Ning Li, Jian Zhang

    Published 2022-01-01
    “…The blood samples were stored for 35 days at 4°C, and the supernatants were performed high liquid chromatography–mass spectrometry (HPLC-MS) analysis at 0 days, 14 days, and 35 days. …”
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    Article
  7. 407

    Prevalence of Aflatoxin Contamination in Peanuts and Peanut Butter from an Informal Market, Harare, Zimbabwe by V. P. Masaka, N. Ndlovu, R. S. Tshalibe, T. C. Mhande, T. Z. Jombo

    Published 2022-01-01
    “…Aflatoxin contamination was determined using liquid chromatography-mass spectrometry (LC-MS). The results revealed that sixty percent (60%) of the raw peanut samples were contaminated with total aflatoxin ranging from <0.75 to 426.4 μg/kg. …”
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    Article
  8. 408

    Permeation Enhancer in Microemulsions and Microemulsion-Based Gels: A Comparison of Diethylene Glycol Monoethyl Ether and Oleyl Alcohol by Sujata Pandey, Gabriella Baki

    Published 2025-01-01
    “…The release and permeation of the microemulsion formulations were performed in vitro by Franz cell studies on a regenerated cellulose membrane and a Strat-M<sup>®</sup> membrane, respectively, and the amount of ibuprofen permeated and released was analyzed by high-performance liquid chromatography (HPLC). All four microemulsions were compatible with the skin pH, and the average pH ranged from 4.9 to 5.6. …”
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  9. 409

    N-Acetylcysteine Decreases Myocardial Content of Inflammatory Mediators Preventing the Development of Inflammation State and Oxidative Stress in Rats Subjected to a High-Fat Diet by Klaudia Sztolsztener, Wiktor Bzdęga, Katarzyna Hodun, Adrian Chabowski

    Published 2023-01-01
    “…The experiment was conducted for eight weeks on male Wistar rats fed a standard chow or a high-fat diet (HFD) with intragastric NAC supplementation. The Gas-Liquid Chromatography (GLC) method was used to quantify the plasma and myocardial AA levels in the selected lipid fraction. …”
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  10. 410

    Simultaneous Determination of Caffeine and Chlorogenic Acids in Green Coffee by UV/Vis Spectroscopy by G. Navarra, M. Moschetti, V. Guarrasi, M. R. Mangione, V. Militello, M. Leone

    Published 2017-01-01
    “…The estimate of concentration values was in agreement with the one obtained by High Performance Liquid Chromatography quantification. The method is fast and simple and allows us to realize routine controls during the coffee production. …”
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    Article
  11. 411

    Supercritical Fluid Extraction of Quinones from Compost for Microbial Community Analysis by Ni Luh Gede Ratna Juliasih, Lee Chang Yuan, Yuki Sago, Yoichi Atsuta, Hiroyuki Daimon

    Published 2015-01-01
    “…The extracted quinones were analysed using ultra performance liquid chromatography (UPLC) with 0.3 mL min−1 of methanol mobile phase for a 50 min chromatographic run time. …”
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    Article
  12. 412

    Antioxidant Activity of Bioactive Compounds in the Ethyl Acetate Extract of Putat Leaves (Planchonia valida) by Nelson, Desy Vania Silaban, Faizar Farid, Ratih Dyah Puspitasari, Indra Lasmana Tarigan, Ilham Ifandi Ramadhan, Madyawati Latief

    Published 2022-12-01
    “…Further isolation was carried out using isolate liquid chromatography and FT-IR instruments. The obtained isolate was in the form of a wet solid, and through characterization, it was classified as a steroid compound suspected to be ergosterol. …”
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    Article
  13. 413

    Rapid Identification and Systematic Mechanism of Flavonoids from Potentilla freyniana Bornm. Based on UHPLC-Q-Exactive Orbitrap Mass Spectrometry and Network Pharmacology by Wei Cai, Kailin Li, Shihan Qin, Pei Xiong, Jie Peng, Silin Shi, Zaiqi Zhang

    Published 2021-01-01
    “…Firstly, the flavonoids were detected and identified based on ultra-high-performance liquid chromatography coupled with Quadrupole-Exactive Focus Orbitrap MS (UHPLC-Q-Exactive Orbitrap MS). …”
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    Article
  14. 414

    Identification and comparison of N-glycome profiles from common dietary protein sources by Matthew Bolino, İzzet Avcı, Hacı Mehmet Kayili, Hatice Duman, Bekir Salih, Sercan Karav, Steven A. Frese

    Published 2025-01-01
    “…N-glycans from four protein isolates were analyzed by HILIC high performance liquid chromatography and quadrupole time-of-flight tandem mass spectrometry (HILIC-FLD-QTOF-MS/MS). …”
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  15. 415

    Analysis of Yield of Eleutherosides B and E in Acanthopanax divaricatus and A. koreanum Grown with Varying Cultivation Methods by Jeong Min Lee, Myoung-Hee Lee, Suk-Bok Pae, Ki-Won Oh, Chan-Sik Jung, In-Youl Baek, Sanghyun Lee

    Published 2014-01-01
    “…An analysis of the yield of eleutherosides B and E in Acanthopanax divaricatus and A. koreanum was performed using high performance liquid chromatography to evaluate production by different cultivation methods. …”
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    Article
  16. 416

    A Novel Strategy for Screening Active Components in Cistanche tubulosa Based on Spectrum-Effect Relationship Analysis and Network Pharmacology by Xiao-Tong Liu, Dong-Mei Sun, Wen-Xin Yu, Wei-Xiong Lin, Liao-Yuan Liu, Yu Zeng

    Published 2023-01-01
    “…In this work, different extracts of C. tubulosa, including herbal materials, water extracts, and herbal residues, were evaluated using high-performance liquid chromatography (HPLC) technology. In addition, the antioxidant activities were estimated in vitro, including 2, 2-diphenyl-1-picrylhydrazyl; superoxide anion; and hydroxyl radical scavenging assays. …”
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  17. 417

    Distinct vaginal microbiome and metabolome profiles in women with preterm delivery following cervical cerclage by Jun Zhang, Li Li, Mengjun Zhang, Jiaoning Fang, Zhimin Xu, Yijing Zheng, Zhi Lin, Mian Pan

    Published 2025-02-01
    “…In addition, vaginal metabolomics-based liquid chromatography–Orbitrap–tandem mass spectrometry (LC-Orbitrap-MS/MS) found that the alteration in vaginal metabolites in pregnant women with PTB is involved in starch and sucrose metabolism; arginine and praline metabolism; galactose metabolism; purine metabolism; arginine metabolism; tryptophan metabolism and N-glycan biosynthesis; cysteine and methionine metabolism; taurine and hypotaurine metabolism; amino acid metabolism; propanoate metabolism; valine, leucine, and isoleucine biosynthesis; glycine, serine, and threonine metabolism; and steroid hormone biosynthesis. …”
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    Article
  18. 418

    Efficacy of Household and Commercial Washing Agents in Removing the Pesticide Thiabendazole Residues from Fruits by Xinyi Du, Lauren Ho, Sisheng Li, Jeffery Doherty, Junghak Lee, John M. Clark, Lili He

    Published 2025-01-01
    “…Both protocols were effective across various fruits (apples, grapes, lemons, strawberries), validated by liquid chromatography–mass spectrometry (LC-MS/MS) analyses. …”
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    Article
  19. 419

    Determination of Tenacissoside G, Tenacissoside H, and Tenacissoside I in Rat Plasma by UPLC-MS/MS and Their Pharmacokinetics by Fan Chen, Yizhe Ma, Ying Cui, Wanhang Wang, Chenchen Mei, Jingjing Nie, Congcong Wen, Xiuwei Shen, Xuzhao Zhou

    Published 2023-01-01
    “…An ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method was developed for the determination of tenacissoside G, tenacissoside H, and tenacissoside I in rat plasma. …”
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    Article
  20. 420

    UPLC-DAD-QTOF/MS Analysis of Flavonoids from 12 Varieties of Korean Mulberry Fruit by O-Chul Kwon, Wan-Taek Ju, Hyun-Bok Kim, Gyoo-Byung Sung, Yong-Soon Kim

    Published 2019-01-01
    “…This study analyzed extracts from 12 varieties of Korean mulberry fruit for flavonoids using ultrahigh-performance liquid chromatography coupled with diode array detection and quadrupole time-of-flight mass spectrometry (UPLC-DAD-QTOF/MS). …”
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    Article