Showing 421 - 440 results of 969 for search '"liquid chromatography"', query time: 0.06s Refine Results
  1. 421

    Protective Effect of the Ethanol Extract from Hericium erinaceus Against Ethanol-Induced Gastric Ulcers by Guoying Lv, Xiaoya Song, Zuofang Zhang

    Published 2021-09-01
    “…Ultra-high performance liquid chromatography-triple quadrupole-time of flight tandem mass spectrometry (UPLC-Triple-TOF-MS) analysis was used to identify the possible compounds present in EEH. …”
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    Article
  2. 422

    Temporomandibular Disorders Related to Stress and HPA-Axis Regulation by Kordian Staniszewski, Henning Lygre, Ersilia Bifulco, Siv Kvinnsland, Lisa Willassen, Espen Helgeland, Trond Berge, Annika Rosén

    Published 2018-01-01
    “…To assess if the hypothalamic-pituitary-adrenal (HPA) axis is upregulated in TMD patients, we performed a cross-sectional study with saliva from 44 TMD patients and 44 healthy sex- and age-matched controls for cortisol (F) and cortisone (E) with liquid chromatography-tandem mass spectrometry. Furthermore, we calculated the F/E ratio for the evaluation of 11β-hydroxysteroid dehydrogenase activity. …”
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  3. 423

    Molecularly Imprinted Polymers-Coated CdTe Quantum Dots for Highly Sensitive and Selective Fluorescent Determination of Ferulic Acid by Zhihong Wang, Ruiqing Long, Mijun Peng, Te Li, Shuyun Shi

    Published 2019-01-01
    “…The fluorescence results coincided well with those obtained by high-performance liquid chromatography (HPLC). It could be concluded that the resultant CdTe-QDs@MIPs offered a new way for rapid and sensitive analysis of FA in the complex matrix.…”
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    Article
  4. 424

    Determination of Tropifexor in Beagle Dog Plasma by UPLC-MS/MS and Its Application in Pharmacokinetics by Yan-Ding Su, Xin-Yi Wei, Xiao-Hang Su, Ghulam Woshur, Xiao-Nan Geng, Xiang-Jun Qiu

    Published 2022-01-01
    “…The primary objective of this study was to develop and validate an efficient and accurate ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) approach as a means to detect tropifexor plasma concentrations in beagle dogs and to study its pharmacokinetic profile in beagle dogs. …”
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    Article
  5. 425

    Effect of Voluntary Wheel Running on Striatal Dopamine Level and Neurocognitive Behaviors after Molar Loss in Rats by Linlin Zhang, Yi Feng, Wenliang Ji, Jianzhang Liu, Kun Liu

    Published 2017-01-01
    “…After 10 days, striatal dopamine level was detected by in vivo microdialysis coupled with high-performance liquid chromatography (HPLC) and electrochemical detection. …”
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  6. 426

    Flavonoids in Juglans regia L. Leaves and Evaluation of In Vitro Antioxidant Activity via Intracellular and Chemical Methods by Ming-Hui Zhao, Zi-Tao Jiang, Tao Liu, Rong Li

    Published 2014-01-01
    “…Herein, qualitative and quantitative determination of flavonoids from J. regia leaves was carried out using high performance liquid chromatography coupled with tandem mass spectrometry with electrospray ionization and negative ion detection (HPLC-ESI-MS/MS) by comparison of the retention times and mass spectral fragments with standard substances or related literatures. …”
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    Article
  7. 427

    Effects of Borneol on Pharmacokinetics and Tissue Distribution of Notoginsenoside R1 and Ginsenosides Rg1 and Re in Panax notoginseng in Rabbits by Shixiang Wang, Weijin Zang, Xinfeng Zhao, Weiyi Feng, Ming Zhao, Xi He, Qinshe Liu, Xiaohui Zheng

    Published 2013-01-01
    “…Reversed phase high-performance liquid chromatography coupled with electrospray ion trap mass spectrometry was employed to determine the concentrations of the three compounds in rabbit plasma. …”
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    Article
  8. 428

    Cliotide U1, a Novel Antimicrobial Peptide Isolated From Leaves by Mahnaz Nasre Taheri, Sima Sadat Seyedjavadi, Mehdi Goudarzi, Gholamhossein Ebrahimipour, Ali Hashemi

    Published 2025-01-01
    “…Methods: A new antimicrobial peptide, named cliotide U1, was purified through precipitation with ammonium sulfate and reverse-phase high-performance liquid chromatography. In silico methods analyzed the physicochemical properties of cliotide U1. …”
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    Article
  9. 429

    Immunomodulatory Effect of Flavonoids of Blueberry (Vaccinium corymbosum L.) Leaves via the NF-κB Signal Pathway in LPS-Stimulated RAW 264.7 Cells by Dazhi Shi, Mengyi Xu, Mengyue Ren, Enshan Pan, Chaohua Luo, Wei Zhang, Qingfa Tang

    Published 2017-01-01
    “…The flavonoids of blueberry leaves were prepared with 70% ethanol and were identified by ultraperformance liquid chromatography/quadrupole-time-of-flight mass spectrometry (UPLC/Q-Tof-MS). …”
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    Article
  10. 430

    Quantitative Determination of Marker Compounds and Fingerprint Analysis of the Seeds of Vernonia anthelmintica by Zulipiya Maimaiti, Ablajan Turak, Qing Ling Ma, Geyu Liu, Haji Akbar Aisa

    Published 2020-01-01
    “…In this study, an effective, reliable, and accurate high-performance liquid chromatography diode array detector (HPLC-DAD) method was developed for quantitative analysis of 3 marker bioactive compounds and chemical fingerprint of the seeds of V. anthelmintica. …”
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  11. 431

    Simultaneous Determination of Lactulose and Lactose in Conserved Milk by HPLC-RID by Michelle Fernandes Silveira, Lourdes Maria Pessôa Masson, José Francisco Pereira Martins, Thiago da Silveira Álvares, Vânia Margaret Flosi Paschoalin, César Lázaro de la Torre, Carlos Adam Conte-Junior

    Published 2015-01-01
    “…The aim of this study is to adapt the high performance liquid chromatography (HPLC) method for determination of lactulose and lactose content in commercial samples of UHT and sweetened condensed milk. …”
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  12. 432

    Dissipation and Residue Level of Thifluzamide in Rice Field Ecosystem by Weitao Chen, Minghui Li, Wenxi Li, Xuemin Wu, Lijun Han

    Published 2015-01-01
    “…An efficient modified QuEChERS method combined with high performance liquid chromatography-tandem mass spectrometry detection (HPLC-MS/MS) was established and evaluated for the residue analysis of thifluzamide in rice grain, husk, straw, seedling, paddy water, and soil. …”
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    Article
  13. 433

    Oxidation state of bioavailable dissolved organic matter influences bacterioplankton respiration and growth efficiency by Brandon M. Stephens, Paolo Stincone, Daniel Petras, Chance J. English, Keri Opalk, Stephen Giovannoni, Craig A. Carlson

    Published 2025-01-01
    “…., more oxidized DOM), as detected by liquid chromatography-tandem mass spectrometry, coincided with increased hydrolyzable amino acid removal, increased ARQs and bacterioplankton respiration (BR), and a decreased bacterioplankton growth efficiency (BGE). …”
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  14. 434

    Phenotyping determination of cyp1a2 enzyme activity using caffeine in sheep by Kamil Uney, Bünyamin Tras

    “…The plasma levels of CF and paraxanthine (PX) were measured using high-performance liquid chromatography. CYP1A2 phenotyping was measured using the ratio [(PX/CF)AUC] between areas under the plasma concentration-time curve (AUCs) of PX and CF and the ratios [(PX/CF)MR→3-16 h] between plasma concentrations of PX and CF at 3 to 16 h after CF administration. …”
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  15. 435

    Efficient reduction of β-lactoglobulin allergenicity in milk using Clostridium tyrobutyricum Z816 by Qianru Zhao, Yuwei Wang, Zhengming Zhu, Quanyu Zhao, Liying Zhu, Ling Jiang

    Published 2023-05-01
    “…The hydrolyzed peptides were identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS) and analyzed by molecular modeling, which indicated that C. tyrobutyricum Z816 could effectively degrade the antigenic epitopes of β-LG. …”
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  16. 436

    Potential antidiabetic and antioxidant activities of a heliangolide sesquiterpene lactone isolated from Helianthus annuus L. leaves by Onoja Samuel O., Nnadi Charles O., Udem Samuel C., Anaga Aruh O.

    Published 2020-06-01
    “…The heliangolide sesquiterpene lactone was isolated through a combination of solvent-solvent partitioning, column chromatography, thin layer chromatography and high-performance liquid chromatography techniques. The antioxidant activity of the compound was evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and nitric oxide radical scavenging assays while the antidiabetic effects were investigated in alloxan-induced diabetic rats. …”
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  17. 437

    Quantitative Analysis of Heavy Metals and Organic Compounds in Soil from Deir Kanoun Ras El Ain Dump, Lebanon by Jamilah Borjac, Manal El Joumaa, Lobna Youssef, Rawan Kawach, Diane A. Blake

    Published 2020-01-01
    “…Heavy metals (lead, cadmium, arsenic, and mercury) and organic compounds (phthalates, bisphenol A, and polyaromatic hydrocarbons) content were determined using atomic absorption and high pressure liquid chromatography, respectively. The conducted research confirmed high levels of contamination in the collected soil samples by both heavy metals and organic compounds. …”
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    Article
  18. 438

    Unraveling relationship between the genetic polymorphism CYP2A13 and nicotine metabolism of male smokers in Medan, Indonesia by Noni Novisari Soeroso, Rozaimah Zain-Hamid, Syamsul Bihar, Chaliza Soliha, Fannie Rizki Ananda, Aida

    Published 2025-02-01
    “…Nicotine metabolite levels were quantified in urine samples using high-performance liquid chromatography (HPLC). CYP2A13 polymorphism was determined using polymerase chain reaction-restriction fragment length polymorphism (PCR–RFLP) analysis of venous blood samples. …”
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    Article
  19. 439

    Development of a Simple and Powerful Analytical Method for Formaldehyde Detection and Quantitation in Blood Samples by Yong-Hyun Kim, Jeongsik Park

    Published 2020-01-01
    “…The pretreated samples were analyzed using a high-performance liquid chromatography-UV system, which is the most common choice for analyzing small-molecule aldehydes like formaldehyde. …”
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  20. 440

    Ultrasound-assisted extraction of peanut shell by-product: Chemical properties, antioxidant, and anti-inflammatory effects by Kang Jung Wook, Lee In Chul

    Published 2024-01-01
    “…High-performance liquid chromatography analysis revealed elevated levels of luteolin in the ultrasound-extracted peanut shell extract (UPE). …”
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    Article