Showing 541 - 560 results of 1,810 for search '"Mass spectrometry"', query time: 0.08s Refine Results
  1. 541

    Neonicotinoid Analysis in Sunflower (Helianthus annuus) Honey Samples Collected around Tekirdag in Turkey by Nurullah Ozdemir, Mustafa Necati Muz

    Published 2023-01-01
    “…Honey samples have been subjected to liquid-liquid extraction methods before liquid chromatography-mass spectrometry (LC-MS/MS). The method validation was carried out to fulfill all the necessary requirements of procedures SANCO/12571/2013. …”
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    Article
  2. 542

    Pd-Au Electrocatalysts for Hydrogen Evolution Reaction at Neutral pH by Elitsa Chorbadzhiyska, Mario Mitov, Georgi Hristov, Nina Dimcheva, Lori Nalbandian, Antigoni Evdou, Yolina Hubenova

    Published 2014-01-01
    “…The quantities of the produced hydrogen gas with different electrocatalysts, estimated from data obtained by chronoamperometry, were confirmed by mass spectrometry analysis. The highest hydrogen evolution rate was achieved with the electrocatalysts, produced from electrolyte with equal Pd and Au content.…”
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  3. 543

    Oral supplementation with propionate is reflected in the serum of healthy individuals by Maximilian Schröder, Arijan Pasic, Frank Hirche, Svitlana Rozanova, Melissa Sgodzai, Barbara Gisevius, Lea Horstkemper, Ralf Gold, Katrin Marcus, Kalliopi Pitarokoili, Jeremias Motte, Katalin Barkovits, Gabriele Stangl, Anna Lena Fisse

    Published 2025-01-01
    “…Methods: Serum propionate quantification was performed with two independent mass spectrometry-based (MS) analyses, including liquid-chromatography (LC)-MS and direct-infusion (DI)-MS. …”
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    Article
  4. 544

    Multi-Template Molecularly Imprinted Polymeric Electrochemical Biosensors by Meltem Agar, Maisem Laabei, Hannah S. Leese, Pedro Estrela

    Published 2025-01-01
    “…Dual/multi-template molecular imprinting techniques have been applied to identify, extract, and detect many targets, from heavy metal ions to viruses, by different methods, such as high-performance liquid chromatography (HPLC), liquid chromatography–mass spectrometry (LC-MS), and piezoelectric, optical, and electrochemical methods. …”
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    Article
  5. 545

    Age Discrimination of Chinese Baijiu Based on Midinfrared Spectroscopy and Chemometrics by Shiqi Hu, Le Wang

    Published 2021-01-01
    “…Firstly, changing regularities of the substances in Chinese Baijiu are discussed by gas chromatography-mass spectrometry (GC-MS) during the aging process. Then, infrared spectrums of Baijiu samples are processed by smoothing, multivariate baseline correction, and the first and second derivative processing, but no significant variation can be observed. …”
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    Article
  6. 546

    Staphylococcus pettenkoferi Bacteremia in an American Intensive Care Unit by Cameron Strong, Michael Cosiano, Melanie Cabezas, J. W. Barwatt, L. Gayani Tillekeratne

    Published 2021-01-01
    “…With the advent of matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) in clinical practice, there has been improved specificity of CoNS isolate identification and further elucidation of underrecognized pathogenic species. …”
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    Article
  7. 547

    Synthesis of New (E)-2-(1H-Indole-3-ylcarbonyl)-3-heteroaryl-acrylonitriles via Microwave-Assisted Knoevenagel Condensation by Adriana V. Treuer, Pedro De-La-Torre, Margarita I. Gutiérrez

    Published 2017-01-01
    “…All the heteroaryl-acrylonitriles were characterized by physicoanalytical techniques such IR, 1H, 13C NMR, and electrospray mass spectrometry.…”
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    Article
  8. 548

    Profiling Anthocyanins in Thai Purple Yams (Dioscorea alata L.) by Subin Srivichai, Parichat Hongsprabhas

    Published 2020-01-01
    “…Yam tubers contained total phenolic compounds ranging between 100 and 385 mg gallic acid equivalent (GAE), flavonoids 60–160 mg catechin equivalent (CE), monomeric anthocyanin of 10–90 mg cyanidin-3-glucoside equivalent (CGE), 70 g starch, and 25–30 g amylose in 100 g yam tuber on a dried weight basis, depending on the accession and age of yam vine. LCMS-IT-TOF mass spectrometry revealed that anthocyanins in both accessions from 8-month-old vines had cyanidin or peonidin nucleus. …”
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  9. 549

    A Comparative Study of Phytochemical Profile of Different Solvents’ Effects on Total Phenolic Content and Antioxidant Activities of Various Parts of Halimium halimifolium by Sabah El gamouz, Omayma Bouzekri, Mostafa Elidrissi, Ali Amechrouq, M’bark Choukrad

    Published 2022-01-01
    “…It explores extracting the essential oil of this plant and analyzing its chemical composition by the gas chromatography-mass spectrometry (GC/MS). Interesting results have been obtained, in particular, the presence of 26 compounds where the major one is (+)-2-Bornanone (38.26%) followed by Eucalyptol (27.74%). …”
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    Article
  10. 550

    Biochemical analysis to study wild-type and polyglutamine-expanded ATXN3 species. by Grégoire Quinet, María Cristina Paz-Cabrera, Raimundo Freire

    Published 2024-01-01
    “…In vitro studies with mass spectrometry techniques revealed a time-dependent aggregation of polyglutamine-expanded ATXN3 that occurs in several steps, leading to fibrils formation, a high status of aggregation. …”
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  11. 551

    Along for the Ride: Intrahepatic Cholangiocarcinoma with Concomitant LECT2 Amyloidosis by Phoenix D. Bell, Aaron R. Huber, Tom C. DeRoche

    Published 2020-01-01
    “…These findings were consistent with amyloidosis, which was further supported by identification of ALECT2- (leukocyte chemotactic factor-2-) type amyloid on mass spectrometry. To our knowledge, this is the first documented case of intrahepatic cholangiocarcinoma arising in association with LECT2 amyloidosis.…”
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  12. 552

    GC-MS analysis of cholesterol lowering dietary supplements by Velislava Todorova, Diana Karcheva-Bahchevanska, Stanislava Ivanova

    Published 2024-12-01
    “…In the current study gas chromatography mass spectrometry was performed to analyze ten cholesterol-reducing DSs. …”
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  13. 553
  14. 554

    In vitro anticancer effects of frankincense and its nanoemulsions for enhanced cancer cell targeting by Rayya A. Al-Balushi, Aiswarya Chaudhuri, Raghuram Kandimalla, Ashanul Haque, Khalaf M. Alenezi, Mohd. Saeed, Mohammad Changez, Thuraya Al Harthy, Mohammed Al Hinaai, Samra Siddiqui, Ashish Kumar Agrawal, Farrukh Aqil, Farrukh Aqil

    Published 2025-02-01
    “…To address these limitations, this study focuses on developing optimized nanoemulsions (NEs) of Frankincense oil (FO) to enhance its therapeutic efficacy.MethodsFrankincense resins were extracted and characterized using gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-mass spectrometry (LC-MS), identifying key metabolites including isopinocarveol, α-thujene, p-cymene, carvone, germacrene A, and various methyl esters. …”
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  15. 555

    Global metabolome changes induced by environmentally relevant conditions in a marine-sourced Penicillium restrictum by Le, Van-Tuyen, Bertrand, Samuel, Brandolini-Bunlon, Marion, Gentil, Emmanuel, Robiou du Pont, Thibaut, Rabesaotra, Vony, Wielgosz-Collin, Gaëtane, Mossion, Aurélie, Grovel, Olivier

    Published 2024-03-01
    “…In this study, a combination of liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS) and gas chromatography coupled to mass spectrometry (GC-MS) analytical approaches was used to analyse the metabolic changes of a marine-sourced Penicillium restrictum strain isolated from a marine shellfish area. …”
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  16. 556
  17. 557

    Metabolic Modulation and Potential Biomarkers of the Prognosis Identification for Severe Aortic Stenosis after TAVR by a Metabolomics Study by Yanbiao Liao, Chang Liu, Tianyuan Xiong, Mingyue Zhao, Wen Zheng, Yuan Feng, Yijian Li, Yuanweixiang Ou, Zhengang Zhao, Yong Peng, Jiafu Wei, Qiao Li, Wei Meng, Xiaojing Liu, Mao Chen

    Published 2020-01-01
    “…Liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry were performed to analyze the metabolic profile before and after TAVR. …”
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  18. 558
  19. 559

    Induction of phospholipase A2 group 4C by HCV infection regulates lipid droplet formation by Masahiko Ito, Jie Liu, Masayoshi Fukasawa, Koji Tsutsumi, Yumi Kanegae, Mitsutoshi Setou, Michinori Kohara, Tetsuro Suzuki

    Published 2025-01-01
    “…Results: Imaging mass spectrometry of the infected mouse model revealed increased lysophosphatidylcholine levels and decreased phosphatidylcholine levels in HCV-positive regions of the liver. …”
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  20. 560

    Niobium Uptake and Release by Bacterial Ferric Ion Binding Protein by Yanbo Shi, Ian Harvey, Dominic Campopiano, Peter J. Sadler

    Published 2010-01-01
    “…We have studied the binding of cyclopentadienyl and nitrilotriacetato NbV complexes to the Fbp from Neisseria gonorrhoeae by UV-vis spectroscopy, chromatography, ICP-OES, mass spectrometry, and Nb K-edge X-ray absorption spectroscopy. …”
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