Showing 1,561 - 1,580 results of 1,810 for search '"Mass spectrometry"', query time: 0.10s Refine Results
  1. 1561

    Source attribution, health risk analysis, and policy implications of PAHs and NPAHs in PM $$_{10}$$ in Northern Mexico by Lucy T. González, Ilse María Hernández-Romero, Alberto Mendoza, Aldo I. Ramirez, Yasmany Mancilla, Boris Kharissov, Michael Pérez-Rodríguez, Juan Manuel Alfaro Barbosa, Daniel López Serna, Oxana Kharissova, Andrea Nucamendi, Jesús Abraham Díaz Paéz, Francisco E. Longoria

    Published 2024-12-01
    “…Advanced gas chromatography-mass spectrometry (GC-MS and GC-NCI-MS) revealed significant PAHs concentrations, with levels in MMA reaching 108.89 ± 99.90 ng/m $$^3$$ , CHI at 100.69 ± 122.60 ng/m $$^3$$ and CDJ at 73.26 ± 90.85 ng/m $$^3$$ . …”
    Get full text
    Article
  2. 1562

    Microbial community succession characteristics in an anaerobic baffled reactor during phenol gradient acclimation by Yuan LI, Chunmei YU, Daqiang CANG

    Published 2025-03-01
    “…Phenol degradation intermediates were performed using gas chromatography/mass spectrometry (GC–MS), with their quantities measured by high-performance liquid chromatography. …”
    Get full text
    Article
  3. 1563

    Accumulation and distribution of cadmium at organic-mineral micro-interfaces across soil aggregates by Qi Li, Linfeng Li, Bohao Yin, Xiaoyang Lin, Anwen Xiao, Weijie Xue, Hengjie Liu, Yichun Li

    Published 2025-01-01
    “…Pot experiments were conducted to assess the impacts of mineral, organic, and microbial amendments on the Cd distribution in soil aggregates using synchrotron radiation-based Fourier transform infrared (SR-FTIR) spectroscopy and nano-scale secondary ion mass spectrometry (NanoSIMS). Our results revealed that different soil amendments exerted varying effects on Cd accumulation in soil aggregates. …”
    Get full text
    Article
  4. 1564

    Rapid Determination of Pemetrexed Concentration and Distribution in Human Breast Cancer Cells (McF-7) Based on UHPLC-MS/MS by Mengwei Zhang, Zhipeng Wang, Qiqiang Zhang, Qing Ye, Fengjing Xu, Lili Cui, Yanping Liu, Shouhong Gao, Wansheng Chen, Yan Liu

    Published 2021-01-01
    “…An ultra high-performance liquid chromatography tandem mass spectrometry (UHPLC-MS/MS) method was developed for rapid quantification of pemetrexed concentration in human breast cancer cells (MCF-7). …”
    Get full text
    Article
  5. 1565
  6. 1566

    Proteomics analysis reveals age-related proteins in the urine of chronic kidney disease patients by Lin Xiong, Changwei Wu, Sipei Chen, Yong Zhang, Li Wang, Yi Li, Guisen Li

    Published 2025-01-01
    “…Utilizing liquid chromatography–tandem mass spectrometry (LC–MS/MS) proteomic analysis, we identified a total of 1,712 proteins in the urine samples from both healthy controls and CKD patients in our discovery cohort. …”
    Get full text
    Article
  7. 1567

    Selective solvothermal extraction of tetrabromobisphenol A to promote plastic recycling by Paavo Auvinen, Ville H. Nissinen, Erno Karjalainen, Kirsi Korpijärvi, Eerika Olkkonen, Krista Grönlund, Ilkka Rytöluoto, Lauri Kuutti, Mika Suvanto, Janne Jänis, Jarkko J. Saarinen

    Published 2025-03-01
    “…Removal of total elemental bromine was analyzed with X-ray fluorescence (XRF), whereas the removal of TBBPA and other plastic additives was evaluated with direct insertion probe mass spectrometry (DIP-MS). IPA/NaOH extraction provided efficient bromine removal, but it also extracted plenty of other plastic additives, including phenolic stabilizers Irganox 1076 and Cyasorb UV-2908. …”
    Get full text
    Article
  8. 1568

    Antimicrobial Activity and Mode of Action of N-Heterocyclic Carbene Silver(I) Complexes by Giusy Castagliuolo, Michela Di Napoli, Tshering Zangmo, Joanna Szpunar, Luisa Ronga, Anna Zanfardino, Mario Varcamonti, Diego Tesauro

    Published 2024-12-01
    “…Some preliminary information on the Ag target was obtained by analyzing the cytosol of <i>E. coli</i> treated with Ag5MC by size-exclusion chromatography (SEC) coupled with inductively coupled plasma mass spectrometry (ICP-MS).…”
    Get full text
    Article
  9. 1569

    Bar Adsorptive Microextraction Approach for Trace Determination of Local Anesthetics in Urine Matrices by Joana R. P. Pereira, Daniela C. Rocha, Nuno R. Neng, Paulo Maurício, M. Edite Torres, Samir M. Ahmad, Alexandre Quintas

    Published 2024-12-01
    “…Two extractive preconcentration techniques, solid-phase microextraction (SPME) LC Tips and bar adsorptive microextraction (BAμE), were studied and applied to the four target anesthetics, followed by gas chromatography-mass spectrometry (GC-MS) analysis. Several parameters that could affect microextraction and back-extraction were optimized using two different designs of experiments (Box–Behnken and full-factorial) to maximize extraction efficiency from aqueous media. …”
    Get full text
    Article
  10. 1570

    Hypoxylon luteogranulatum (Hypoxylaceae, Xylariales), a novel species from Thailand with distinct chemical and ecological traits by Sarunyou Wongkanoun, Esteban Charria-Girón, Marjorie Cedeño-Sanchez, Boonchuai Chainuwong, Sayanh Somrithipol, Eric Kuhnert, Prasert Srikitikulchai, Natapol Pornputtapong, Frank Surup, Jennifer Luangsa-ard, Marc Stadler

    Published 2025-01-01
    “…During the course of our ongoing study of the diversity of Thai fungi and their secondary metabolites, numerous specimens within the Hypoxylaceae have been characterised by traditional morphology, chemotaxonomy using ultra-high-performance liquid chromatography coupled to diode array detection and ion mobility tandem mass spectrometry (UHPLC-DAD-IM-MS/MS), and molecular phylogenetic analyses. …”
    Get full text
    Article
  11. 1571

    Increased Duodenal Iron Absorption through Upregulation of Ferroportin 1 due to the Decrement in Serum Hepcidin in Patients with Chronic Hepatitis C by Masanori Sato, Koji Miyanishi, Shingo Tanaka, Akira Sakurada, Hiroki Sakamoto, Yutaka Kawano, Kohichi Takada, Masayoshi Kobune, Junji Kato

    Published 2018-01-01
    “…Serum level of hepcidin-25 was measured by liquid chromatography-tandem mass spectrometry. Ferroportin 1 (FPN) mRNA was measured by RT-PCR and FPN protein was analyzed by western blot. …”
    Get full text
    Article
  12. 1572

    Oleanolic Acid Cubic Liquid Crystal Nanoparticle-Based Thermosensitive Gel Attenuates Depression Symptoms in Chronic Unpredictable Mild Stress Rats by Shi Z, Wang Q, Li Q, Jia F, Xu W

    Published 2025-02-01
    “…The pharmacokinetics of OANG was studied in rats, and OA content was determined using liquid chromatography-mass spectrometry (LC-MS). The pharmacological effects of OANG on depression were evaluated in chronic unpredictable mild stress (CUMS) model rats.Results: The phase transition temperature of the gel was 34°C, and the release of OA from OANG was slow according to the Higuchi kinetic equation. …”
    Get full text
    Article
  13. 1573

    Assessment of the essential oil extracted from Citrus aurantifolia leaves using solvent-free microwave extraction technique by G.M. Masud Rana, Md. Jasim Uddin, Jaytirmoy Barmon, Bijoy Chandra Ghos, Tahmina Akter Chowdhury, Amit Kumar Dey, Bijoy Maitra, Ismat Moin Tamanna, AHM Mahbubur Rahman, Barun Kanti Saha, Mst. Sarmina Yeasmin

    Published 2025-03-01
    “…Gas chromatography-mass spectrometry (GC–MS) profiling revealed multiple bioactive components in C. aurantifolia leaves EO, with neral (30.728 %), d-limonene (22.824 %), citral (19.430 %), lemonol (5.060 %), geraniol (3.447 %), geranial (3.079 %), and caryophyllene (3.959 %) being the major components. …”
    Get full text
    Article
  14. 1574

    BiomiX, a user-friendly bioinformatic tool for democratized analysis and integration of multiomics data by Cristian Iperi, Álvaro Fernández-Ochoa, Guillermo Barturen, Jacques-Olivier Pers, Nathan Foulquier, Eleonore Bettacchioli, Marta Alarcón-Riquelme, PRECISESADS Flow Cytometry Study Group, PRECISESADS Clinical Consortium, Divi Cornec, Anne Bordron, Christophe Jamin

    Published 2025-01-01
    “…The metabolomics annotation for Liquid Chromatography-Mass Spectrometry untargeted metabolomics is additionally supported using the mass-to-charge ratio in the CEU Mass Mediator database and fragmentation spectra in the TidyMass package. …”
    Get full text
    Article
  15. 1575

    iMulch: an investigation of the influence of polymers on a terrestrial ecosystem using the example of mulch films used in agriculture by Carmen Wolf, Mike Wenzel, Björn Fischer, Ralf Bertling, Erich Jelen, Dieter Hennecke, Karlheinz Weinfurtner, Martina Roß-Nickoll, Henner Hollert, Antonia Weltmeyer, Kristina Bitter, Pauline Ruiz, Dusica Banduka, Jochen Tuerk, Lars M. Blank

    Published 2025-01-01
    “…The development of a detection methodology using Raman spectroscopy and thermo-extraction desorption gas chromatography mass–spectrometry (TED-GC–MS), the adsorption behaviour, ageing in drainage water and soil, their transport behaviour in lysimeters, ecotoxicity, uptake in plants, a life cycle assessment (LCA) and upcycling were considered. …”
    Get full text
    Article
  16. 1576

    Experimental and Theoretical Study on the False Positive of Monomethyltin Determination in Toys Based on Gastric Juice Migration by Lina Huang, Hanke Li, Yuhang Li, Peng Ren, Lezhou Yi, Yang Chen, Tongmei Ma

    Published 2020-01-01
    “…With metal tin powder as a representative of inorganic tin which existed in real samples, it was treated with artificial gastric juice (0.07 mol/L·HCl), followed by ethyl derivatization using sodium tetraethylborate [NaB(Et)4] and then analyzed by gas chromatography-mass spectrometry (GC-MS) according to the procedure specified in the standard of EN 71-3:2013+A3:2018 issued by the European Committee for Standardization (CEN). …”
    Get full text
    Article
  17. 1577

    Smart packaging tools for selected Indian traditional buffalo milk products: a case for on-package freshness indicators by Narender Raju Panjagari, Ashish Kumar Singh, Sangita Ganguly, Rajan Sharma, Vivek Sharma

    Published 2023-11-01
    “…The prerequisites for developing freshness indicators were to identify the critical volatile headspace markers using solid phase microextraction (SPME) coupled with gas chromatography-mass spectrometry (GC-MS) for the respective dairy products, selection of suitable innovative ink components, namely dyes (methyl red, and methyl red sodium salt), plasticizer (glycerol), choose appropriate polymer support (methylcellulose, polyvinyl alcohol or paper), and adopt a suitable production technique such as casting, dipping, or electrospinning. …”
    Get full text
    Article
  18. 1578

    Tracing the change of the volatile compounds of soy sauce at different fermentation times by PTR-TOF-MS, E-nose and GC–MS by Qixin Kan, Longbipei Cao, Liping He, Peipei Wang, Guangdie Deng, Jun Li, Jiangyan Fu, Qingrong Huang, Chi-Tang Ho, Yunqi Li, Chunhui Xie, Yong Cao, Linfeng Wen

    Published 2025-01-01
    “…Proton-transfer reaction time-of-flight mass spectrometry (PTR-TOF-MS), combined with electronic nose (E-nose), was first used to track the change of volatile organic compounds (VOCs) in soy sauce in this study. …”
    Get full text
    Article
  19. 1579

    Chemical Composition and Antioxidant and Antimicrobial Activities of Wormwood (Artemisia absinthium L.) Essential Oils and Phenolics by Kamel Msaada, Nidhal Salem, Olfa Bachrouch, Slim Bousselmi, Sonia Tammar, Abdulkhaleg Alfaify, Khaldoun Al Sane, Wided Ben Ammar, Sana Azeiz, Adel Haj Brahim, Majdi Hammami, Sawsen Selmi, Ferid Limam, Brahim Marzouk

    Published 2015-01-01
    “…The essential oil composition variability of A. absinthium L. aerial parts collected from four different Tunisian regions was assessed by gas chromatography (GC/FID) and by gas chromatography mass spectrometry (GC/MS). In addition, total polyphenols, flavonoids, and condensed tannins as well as antioxidant, antibacterial, and antifungal activities of methanolic extract and essential oils were undertaken. …”
    Get full text
    Article
  20. 1580

    Process Optimization and Antioxidant Activity of Pine Needle Essential Oil Extracted by Microwave-assisted Extraction by Suyuan LÜ, Bingqing SHANG, Luyan SUN, Guolong LIU, Fa ZHAO, Xiuqing LIANG, Qiu WU, Yue GENG

    Published 2025-01-01
    “…Methods: Response surface methodology was used to optimize the process of extracting the pine needle essential oil from Pinus tabuliformis by microwave-assisted extraction (MAE), the components of essential oil were identified by gas chromatography-mass spectrometry (GC-MS) and the antioxidant activity was verified by DPPH and ABTS+ free radicals scavenging ability as indicators. …”
    Get full text
    Article