Showing 681 - 700 results of 1,443 for search '"mass spectrometry"', query time: 0.38s Refine Results
  1. 681

    Influence of Solvent on the Component Composition and Antioxidant Properties of Apricot Cake (Prunus armeniaca L.) Extracts by A. S. Shakun, V. I. Vorobyova, O. E. Chygyrynets, M. I. Skiba

    Published 2020-01-01
    “…In the obtained extracts, identification of the sequestered chemically active compounds was carried out by means of chromatography, mass spectrometry, and IR and UV spectrometry, and the extracts were evaluated on antioxidant properties. …”
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    Article
  2. 682

    Chemical Composition of Urtica simensis Grown in Different Regions of Ethiopia by Koju Bedekach Bayba, Amare Aregahegn Dubale, Bewketu Mehari, Minaleshewa Atlabachew

    Published 2020-01-01
    “…In addition, the fatty acid profiles of the leaves were analyzed by using gas chromatography coupled with mass spectrometry. A total of 16 different fatty acids were detected in the samples. …”
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  3. 683

    Methyl-Arginine Profile of Brain from Aged PINK1-KO+A53T-SNCA Mice Suggests Altered Mitochondrial Biogenesis by Georg Auburger, Suzana Gispert, Nadine Brehm

    Published 2016-01-01
    “…Now we studied brain hemispheres of DM mice at age of 18 months in a hypothesis-free approach, employing a quantitative label-free global proteomic mass spectrometry scan of posttranslational modifications focusing on methyl-arginine. …”
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  4. 684

    Proteomic Analysis of Hippocampus and Cortex in Streptozotocin-Induced Diabetic Model Mice Showing Dementia by Kenji Matsuura, Mieko Otani, Masaoki Takano, Keiichi Kadoyama, Shogo Matsuyama

    Published 2018-01-01
    “…The proteomic analysis of the hippocampus and cortex in streptozotocin- (STZ-) treated mouse diabetic model showing dementia was performed using two-dimensional gel electrophoresis (2-DE) followed by mass spectrometry (n=3/group). Results. Significant changes in the expression of 32 proteins and 7 phosphoproteins were observed in the hippocampus and cortex. …”
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    Article
  5. 685

    Formation of volatile compounds in salt-mediated naturally fermented cassava by Alberta N.A. Aryee, Christabel Tachie, Aleksei Kaleda

    Published 2025-01-01
    “…The 32 VOCs quantitated on day 50 by headspace solid-phase microextraction (HS-SPME) arrow coupled with gas chromatography–mass spectrometry (GC–MS) and classified as: alcohol (9), aldehydes (6), ketones (5), carboxylic acids (5), esters (3), nitriles (2), phenol (1) and hydrocarbon (1) were affected by the amount of added salt. …”
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  6. 686

    Characterization of mineral composition of leaves and flowers of wild-growing Sambucus nigra by Qazimi Bujar, Stafilov Trajče, Andonovska Katerina Bačeva, Tašev Krste, Geskovski Nikola, Dragusha Shpend, Koraqi Hyrije, Ejupi Valon

    Published 2024-03-01
    “…The minerals were determined by the application of inductively coupled plasma-atomic emission spectrometry (ICP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS). A total of 31 elements were determined, 15 elements by the ICP-AES method (Al, B, Ba, Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, Sr, V, and Zn) and 16 elements by the ICP-MS method (Ag, As, Be, Bi, Cd, Co, Cs, Ga, Hg, In, Li, Ni, Pb, Rb, Tl, and U). …”
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    Article
  7. 687

    Multi-Element Composition of Honey as a Suitable Tool for Its Authenticity Analysis by Oroian Mircea, Amariei Sonia, Leahu Ana, Gutt Gheorghe

    Published 2015-06-01
    “…An inductively coupled plasma-mass spectrometry (ICP-MS) method was used to determine 27 elements in honey (Ag, Al, As, Ba, Be, Ca, Cd, Co, Cr, Cs, Cu, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Rb, Se, Sr, Tl, U, V and Zn). …”
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  8. 688

    Involuntary intoxication caused by vaping the synthetic cannabinoid ADB-BUTINACA: A case report by Elise M.A. Slob, Maryam Lyousoufi, Sharif Pasha, Erik B. Wilms

    Published 2025-06-01
    “…Despite all negative results in the point-of-care test for recreational drugs, the liquid chromatography-quadrupole time-of-flight mass spectrometry (LC-QTOF-MS) analysis showed that the liquid of the e-cigarette contained ADB-BUTINACA, a synthetic cannabinoid. …”
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    Article
  9. 689

    Changes in Texture and Flavor of Dehydrated Shiitake Mushroom during Rehydration by LI Qianyu, CAO Xuehui, ZHUO Qiuchen, YOU Kaiyan, LIANG Zhitang, ZHU Danshi

    Published 2025-02-01
    “…An electronic tongue, headspace solid phase microextraction coupled with gas chromatography-mass spectrometry (HS-SPME-GC-MS) and laser scanning confocal microscopy (LSCM) were used to analyze the texture and flavor characteristics of shiitake mushroom during the rehydration process. …”
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  10. 690

    Preparation of Multiwalled Carbon Nanotubes/Hydroxyl-Terminated Silicone Oil Fiber and Its Application to Analysis of Crude Oils by Shukui Zhu, Ting Tong, Wanfeng Zhang, Wei Dai, Sheng He, Zhenyang Chang, Xuanbo Gao

    Published 2014-01-01
    “…A simple and efficient method to analyze the volatile and semivolatile organic compounds in crude oils has been developed based on direct immersion solid-phase microextraction coupled to comprehensive two-dimensional gas chromatography/time-of-flight mass spectrometry (DI-SPME-GC × GC/TOFMS). A novel fiber, multiwalled carbon nanotubes/hydroxyl-terminated silicone oil (MWNTs-TSO-OH), was prepared by sol-gel technology. …”
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    Article
  11. 691

    Formation Patterns of Major Flavor Substances Based on the Analysis of Spatiotemporal Heterogeneity in the Traditional Solid-State Fermentation System of Shanxi Aged Vinegar by SHEN Jin, ZHOU Jingli, LANG Fanfan, YAN Yufeng, WANG Li, XIA Yaoyao, LI Jie, ZHANG Feng, WANG Chenyuan, ZHENG Yu

    Published 2025-01-01
    “…Samples of fermented grains (Cupei) taken at different spatial locations and at different fermentation times were analyzed for physicochemical characteristics, flavor substances and microbial community composition by metagenomics and headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS). The results showed that the moisture and temperature of Cupei significantly varied among spatial locations. …”
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  12. 692

    TYPOCHEMISTRY OF MAGNETITE FROM MASSIVE SULFIDE AND IRON DEPOSITS OF THE URALS ACCORDING TO LA-ISP-MS DATA by V.V. Maslennikov, N.R. Ayupova, A.S. Tseluyko, N.P. Safina, D.A. Artemyev, U.A. Yatimov, S.I. Bryukhov, P.V. Khvorov, M.A. Rassomakhin

    Published 2025-12-01
    “…It is established using laser ablation inductively coupled plasma mass spectrometry (LA-ICPMS) that, in contrast to magnetite of iron deposits, magnetite of ore-controlling volcanosedimentary horizons of the Urals massive sulfide deposits is characterized by a higher content and stable associations of Bi, Te, Co, As, Cd, Zn, Cu and Mo due to relict inclusions of sulfide clasts and products of their halmyrolysis. …”
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  13. 693

    How to Efficiently Produce Ultrapure Acids by Damiano Monticelli, Alessio Castelletti, Davide Civati, Sandro Recchia, Carlo Dossi

    Published 2019-01-01
    “…The concentration of twenty elements in the purified acids was determined by Inductively Coupled Plasma-Mass Spectrometry. As a result, the subboiling temperature (up to 82°C) and the number of subsequent distillations (up to four) were demonstrated not to affect the purity of the distilled nitric and hydrochloric acids. …”
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    Article
  14. 694

    Exogenous Angiotensin I Metabolism in Aorta Isolated from Streptozotocin Treated Diabetic Rats by P. P. Wołkow, B. Bujak-Giżycka, J. Jawień, R. Olszanecki, J. Madej, J. Rutowski, R. Korbut

    Published 2016-01-01
    “…Products of ANG I metabolism through classical (ANG II, ANG III, and ANG IV) and alternative (ANG (1–9), ANG (1–7), and ANG (1–5)) pathways were measured in the buffer, using liquid chromatography-mass spectrometry. Results. Incubation with ANG I resulted in higher concentration of ANG II (P = 0.02, vehicle pretreatment) and lower of ANG (1–9) (P=0.048, perindoprilat pretreatment) in diabetes. …”
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  15. 695

    Synthesis and In Vitro Biological Evaluation of Aminonaphthoquinones and Benzo[b]phenazine-6,11-dione Derivatives as Potential Antibacterial and Antifungal Compounds by Amaç Fatih Tuyun, Nilüfer Bayrak, Hatice Yıldırım, Nihal Onul, Emel Mataraci Kara, Berna Ozbek Celik

    Published 2015-01-01
    “…The structures of the new members of the series were established on the basis of their spectral properties (IR, 1H NMR, 13C NMR, and mass spectrometry).…”
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  16. 696

    Biosynthesis of silver nanoparticles from macroalgae Hormophysa triquetra and investigation of its antibacterial activity and mechanism against pathogenic bacteria by Shazia Bibi, Mohammed H. Abu-Dieyeh, Mohammad A. Al-Ghouti

    Published 2025-01-01
    “…The NPs are characterized using Transmission electron microscopy (TEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), Gas chromatography/Mass spectrometry (GC/MS) and X-ray photoelectron spectroscopy (XPS). …”
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    Article
  17. 697

    Metabolome profiling dissects the oat (Avena sativa L.) innate immune response to Pseudomonas syringae pathovars. by Chanel J Pretorius, Paul A Steenkamp, Ian A Dubery

    Published 2025-01-01
    “…Methanolic leaf extracts were analysed by ultra-high-performance liquid chromatography (UHPLC) connected to high-definition mass spectrometry. Chemometric modelling and multivariate statistical analysis indicated time-related metabolic reconfigurations that point to host and nonhost interactions in response to bacterial inoculation/infection. …”
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    Article
  18. 698

    Electrochemically reduced graphene oxide integrated with carboxylated-8-carboxamidoquinoline: A platform for highly sensitive voltammetric detection of Zn(II) ion by screen-printed... by Ling Ling Tan, Nur Syamimi Mohamad, Nurul Izzaty Hassan, Choo Ta Goh

    Published 2025-01-01
    “…The developed electrode was applied to determine Zn(II) ion concentration in dietary supplement samples, and the results were in good agreement with those obtained from inductively coupled plasma-mass spectrometry (ICP-MS).…”
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    Article
  19. 699

    Antihuman Immunodeficiency Virus Type 1 (HIV-1) Activity of Rare Earth Metal Complexes of 4-Hydroxycoumarins in Cell Culture

    Published 2006-01-01
    “…The complexes were characterized by different physicochemical methods: mass spectrometry, ¹H NMR, ¹³C NMR, and IR spectroscopy. …”
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  20. 700

    Optimization of Extraction Conditions for Determination of Tiliroside in Tilia L. Flowers Using an LC-ESI-MS/MS Method by Aleksandra Pieczykolan, Wioleta Pietrzak, Renata Nowak, Józefina Pielczyk, Karolina Łamacz

    Published 2019-01-01
    “…A new, rapid, simple, sensitive, and selective liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) method was developed to determine the content of tiliroside in Tilia L. flowers. …”
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    Article