Showing 481 - 500 results of 969 for search '"liquid chromatography"', query time: 0.06s Refine Results
  1. 481

    Toxicity and Molecular Identification of Green Toadfish Lagocephalus lunaris Collected from Kyushu Coast, Japan by Yuji Nagashima, Takuya Matsumoto, Keisuke Kadoyama, Shoichiro Ishizaki, Makoto Terayama

    Published 2011-01-01
    “…Comparing the maximum toxicity in tissues, ovary contained the most toxin (1810 mouse unit [MU]/g), followed by liver (341 MU/g), muscle (135 MU/g), skin (79 MU/g), and intestine (72 MU/g). Liquid chromatography/mass spectrometry analysis revealed that TTX was the major toxin. …”
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  2. 482

    Effect of Isopropanol on Microstructure and Activity of TiO2 Films with Dominant {001} Facets for Photocatalytic Degradation of Bezafibrate by Murtaza Sayed, Fu Pingfeng, Hasan M. Khan, Pengyi Zhang

    Published 2014-01-01
    “…The photocatalytic degradation intermediates of bezafibrate were analyzed by an ultraperformance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and accordingly the degradation pathways were proposed.…”
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  3. 483

    Sulfonamide Residues: Honey Quality in the Czech Market by Sandra Dluhošová, Ivana Borkovcová, Lenka Kaniová, Lenka Vorlová

    Published 2018-01-01
    “…Chromatographic analysis was performed by ultraperformance liquid chromatography with tandem mass spectrometry (UPLC-MS/MS) using a triple quadrupole (QqQ) in positive ionization mode (ESI+). …”
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  4. 484

    Nutritional value and antioxidant activity of ora-pro-nobis, tamarillo and green banana biomasses by Renata de Souza Ferreira, Jucenir dos Santos, Lívya Alves de Oliveira, Ceres Mattos Della Lucia, Márcia Cristina Teixeira Ribeiro Vidigal

    Published 2024-12-01
    “…Using standard methodologies (AOAC, 2005), the following compounds were analyzed in triplicate: protein, lipids, carbohydrate, calories, moisture, total fiber content, calcium, iron, vitamin C (by titrimetry), carotenoids (by High Performance Liquid Chromatography), phenolic compounds (by Folin-Ciocalteau) and antioxidant activities, by DPPH (2,2-diphenyl-1-picrylhydrazyl) and ABTS (2,2'-azino-bis 3-ethylbenzothiacholine-6-sulfonic acid). …”
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  5. 485

    Structural characterization and immunostimulatory activity of a water-soluble polysaccharide from abalone (Haliotis discus hannai Ino) muscle by Linfan Shi, Gengxin Hao, Jun Chen, Junling Wang, Wuyin Weng

    Published 2023-03-01
    “…High-performance liquid chromatography analysis indicated that AMPP was homogeneous and had an average molecular weight of approximately 3.2 kDa. …”
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  6. 486

    Validated UPLC-MS/MS Method for Determination of Futibatinib and Its Pharmacokinetics in Beagle Dogs by Heng Li, Hao-Zhe Ding, Yi-Lin Wang, Feng Zhang, Ya-Hao Song, Xiang-Jun Qiu

    Published 2022-01-01
    “…An ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method to determine the concentration of futibatinib in beagle dog plasma was developed and validated for the study of pharmacokinetics. …”
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  7. 487

    PHYTOCHEMICAL PROFILE, ANTIOXIDANT AND CYTOTOXIC ACTIVITIES OF LEAF EXTRACT OF Dipteryx lacunifera DUCKE by Krislany A. L. Guedes Araujo, Herbert G. Sousa, João P. da Silva Gomes, Renato Pinto de Sousa, Éverton L. de França Ferreira, Monica T. Pupo, Pedro M. da Silva Costa, Claudia Pessoa, Mahendra Rai, Mariana H. Chaves, Gerardo Magela Vieira Junior

    Published 2025-01-01
    “…In addition, analysis by electrospray ionization-ion trap mass spectrometry (ESI(-)-ITMS) and ultra-performance liquid chromatography coupled with electrospray ionization quadrupole-time-of-flight mass spectrometry (UPLC-ESI-QTOF-MS/MS) annotated twenty-one compounds (1-21), with seventeen of these being reported for the first time in D. lacunifera. …”
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  8. 488

    Influence of <i>Eimeria</i> spp. and <i>Clostridium perfringens</i> Infection on Growth Performance and Toltrazuril Residues in Chickens by Konrad Pietruk, Jacek Karamon, Piotr Jedziniak, Stanisław Tokarzewski, Małgorzata Olejnik

    Published 2025-01-01
    “…In this study, we assessed the effects of <i>Eimeria</i> spp. infection and coinfection with <i>Eimeria</i> spp. and <i>Clostridium perfringens</i> on chicken weight and toltrazuril concentrations, along with two metabolites—toltrazuril sulfoxide and toltrazuril sulfone—using liquid chromatography coupled with mass spectrometry. The analysis of liver and muscle samples showed lower levels of residues in groups challenged with <i>Eimeria</i> spp. …”
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  9. 489

    Urinary Concentrations of Steroids in Bulls under Anabolic Treatment by Revalor-XS® Implant by Giancarlo Biancotto, Roberto Stella, Federica Barrucci, Francesca Lega, Roberto Angeletti

    Published 2016-01-01
    “…The analytical method was based on liquid chromatography-tandem mass spectrometry. Results showed average urinary concentrations of α-trenbolone and α-estradiol during treatment in the range of (0.81÷2.1) ng mL−1 and (0.96÷4.4) ng mL−1, respectively, whereas β-trenbolone and β-estradiol exhibit urinary concentrations lower than 0.22 ng mL−1 in both cases. …”
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  10. 490

    Isolation of Bioactive Compound in Methanolic Extract of Putat Leaves (Planchonia valida) as Antioxidant by Faizar Farid, Vera Lorensya Br Sembiring, Nelson Nelson, Muhammad Furqon Novryan Saputra, Silvi Ayudiah Putri, Indra Lasmana Tarigan, Madyawati Latief

    Published 2022-12-01
    “…Next, isolation was carried out using vacuum liquid chromatography. The isolates obtained were then characterized using UV-Vis and FT-IR spectrophotometer instruments. …”
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  11. 491

    Quantitative Analysis and Comparison of Flavonoids in Lotus Plumules of Four Representative Lotus Cultivars by Ting Liu, Mingzhi Zhu, Chunyun Zhang, Mingquan Guo

    Published 2017-01-01
    “…The flavonoids in lotus plumules from four representative lotus cultivars have been analyzed using high-performance liquid chromatography coupled with ultraviolet detector and electrospray ionization triple quadrupole mass spectrometry. …”
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  12. 492

    Development of a novelly selective HPLC-chemiluminescence method by targeting degradation intermediates of nitroimidazoles and its application in animal food products by Mengdie Cai, Xinyu Wang, Kun Lu, Bixiao Zhou, Lijun Wei, Xianglei Cheng

    Published 2025-01-01
    “…Herein, with the aid of recognition probe MCLA, an excellent selective method for the detection of nitroimidazoles (NDZs) was developed based on high-performance liquid chromatography combined with ultraviolet (UV) degradation and chemiluminescence (HPLC-UV-CL). …”
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  13. 493

    Simultaneous Determination of Stilbenes, Flavones, Coumestans, Anthraquinones, and Chalcones in Ethanolic Extract of Pet-Sang-Kard Mixed Herbal Remedy Using HPLC-PDA Analysis by Weerasak Samee, Wanna Eiamart, Sarin Tadtong, Chuda Chittasupho

    Published 2025-01-01
    “…This study presents the development, validation, and application of a high-performance liquid chromatography with photodiode array detection (HPLC-PDA) method designed for the simultaneous quantification of 13 key bioactive compounds, including rhaponticin, rhapontigenin, quercitrin, wedelolactone, aloe-emodin, rhein, emodin, chrysophanol, physcion, alpinetin, pinocembrin, pinostrobin, and panduratin A, present in the 70% ethanolic extract of PSKMHR. …”
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  14. 494

    Polyphenol Profiles and Antioxidant Properties of Ethanol Extracts from Osmanthus Fragrans (Thunb.) Lour. Flowers by Li Hong-Ling, Chai Zhi, Shen Garry X., Li Chun-Yang

    Published 2017-12-01
    “…Lour. flowers (EOF) and identified phenolic compounds in EOF using liquid chromatography-mass spectrometry. Nine compounds, 3-O-caffeoylquinic acid, caffeic acid 4-O-glucoside, salidroside, 5-O-coumaroylquinic acid, 4-O-coumaroylquinic acid, acteoside, ligustroside, fucosterol and arjunolic acid were identified. …”
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  15. 495

    Serum Glycoproteomics and Identification of Potential Mechanisms Underlying Alzheimer’s Disease by Naphatthakarn Kerdsaeng, Sittiruk Roytrakul, Suwannee Chanprasertyothin, Piangporn Charernwat, Sirintorn Chansirikarnjana, Piyamitr Sritara, Jintana Sirivarasai

    Published 2021-01-01
    “…Comparative serum glycoproteomic profiling by liquid chromatography-tandem mass spectrometry was then performed to identify differentially abundant proteins with functional relevance. …”
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  16. 496

    Analysis of Quality and Phenolic Metabolome of Thompson Seedless Raisins from Nine Production Areas in Turpan by HU Jinge, BAI Shijian

    Published 2025-01-01
    “…Their phenolic composition and content were determined by high performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). …”
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  17. 497

    Succinic Acid Production With Actinobacillus succinogenes –Influence of an Electric Potential on the Intercellular NADH/NAD+ Balance by Jan‐Niklas Hengsbach, Marcel Cwienczek, Wolfgang Laudensack, Judith Stiefelmaier, Nils Tippkötter, Roland Ulber

    Published 2025-01-01
    “…Using an adapted high‐performance liquid chromatography method with a Supelcosil LC‐18‐T column, it was demonstrated that NADH availability in BES, particularly during the stationary growth phase, improved by up to 1.98‐fold compared to the control. …”
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  18. 498

    Effect of Stir-Frying, Boiling, and Baking on Hexaconazole Residue Levels in Welsh Onion (<i>Allium fistulosum</i> L.) by Myungheon Kim, Mihyun Cho, Jaebin Im, Changkyo Seo, Changhyeon Park, Moo-Hyeog Im

    Published 2025-01-01
    “…Welsh onion was processed by common cooking methods such as stir-frying, boiling, and baking, and analyzed for pesticide residues using liquid chromatography with tandem mass spectrometry. The results showed that the removal rates of pesticides after cooking were 40.0–62.9% for stir-frying, 80.0–91.4% for boiling, and 51.4–77.1% for baking. …”
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  19. 499

    Antimutagenic Effect of Hibiscus sabdariffa L. Aqueous Extract on Rats Treated with Monosodium Glutamate by Ana Carla Guidini Valentini Gheller, Jacqueline Kerkhoff, Gerardo Magela Vieira Júnior, Kleber Eduardo de Campos, Marina Mariko Sugui

    Published 2017-01-01
    “…The presence of anthocyanins was confirmed by ferric chloride test and phenolic compounds using high-performance liquid chromatography, with emphasis on the identification of rutin. …”
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  20. 500

    A Rapid and Selective LC-MS/MS Method for Quantification of Quetiapine in Human Plasma and its Application to Pharmacokinetic Study on Indian Schizophrenia Patients by S. Ravinder, A. T. Bapuji, K. Mukkanti, M. Nagesh, H. L. V. Ravikiran

    Published 2011-01-01
    “…A rapid, robust and selective high pressure liquid chromatography–positive electrospray ionization tandem mass spectrometry method has been developed and validated for the quantification of quetiapine (QUE) in human plasma with K2EDTA using oxcarbazepine (IS) as an internal standard. …”
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