Showing 881 - 900 results of 1,443 for search '"mass spectrometry"', query time: 0.08s Refine Results
  1. 881

    Evaluating the occurrence of trihalomethanes in drinking water and their implications for human health risk by Victor Constantin Cojocaru, Valentina Andreea Petre, Ana Ioana Paris, Nicolae Ionut Cristea, Florentina Laura Chiriac, Ioana-Antonia Cimpean

    Published 2024-12-01
    “…Using a gas-chromatography coupled mass-spectrometry (GC-MS) analysis method, water samples collected over the course of a year were analysed and revealed the cumulative sum of all trihalomethanes (ΣTHMs) saw a maximum concentration of 90.6 µg/L, with an average of 25.6 µg/L and a median of 22.2 µg/L with chloroform and bromoform being the most abundant. …”
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  2. 882

    Antioxidant and Antimicrobial Properties of the Essential Oil and Extracts of Zanthoxylum alatum Grown in North-Western Himalaya by Sanjay Guleria, A. K. Tiku, Apurva Koul, Sahil Gupta, Gurjinder Singh, V. K. Razdan

    Published 2013-01-01
    “…The essential oil obtained from the fresh leaves of Zanthoxylum alatum was analysed by gas chromatography/mass spectrometry (GC/MS). Fourteen components were identified, and linalool (30.58%), 2-decanone (20.85%), β-fenchol (9.43%), 2-tridecanone (8.86%), β-phellandrene (5.99%), Sabinene (4.82%), and α-pinene (4.11%) were the main components. …”
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  3. 883

    Evaluation of Bioactive Compounds and Chemical Elements in Herbs: Effectiveness of Choline Chloride-Based Deep Eutectic Solvents in Ultrasound-Assisted Extraction by Aleksandra Szydłowska-Czerniak, Agnieszka Kowaluk, Michał Strzelec, Tomasz Sawicki, Małgorzata Tańska

    Published 2025-01-01
    “…Additionally, macroelements (K, Na, Ca, Mg), micronutrients (Mn, Zn, Fe, Cu), and a toxic element (Cd) in four herbs were analyzed using inductively coupled plasma–mass spectrometry (ICP–MS). Determining the compositions of antioxidants and elements in herbs is essential for understanding their nutritive importance when applied in the food, cosmetic, and pharmaceutical industries.…”
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  4. 884

    Generation of Mature Nα-Terminal Acetylated Thymosin α1 by Cleavage of Recombinant Prothymosin α by Bo Liu, Xin Gong, Shaohong Chang, Peng Sun, Jun Wu

    Published 2013-01-01
    “…The Nα-acetylated Tα1 peptide was subsequently purified by reverse phase and cation exchange chromatography. Mass spectrometry indicated that the molecular mass of recombinant Nα-acetylated Tα1 was 3108.79 in, which is identical to the mass of Nα-acetylated Tα1 produced by total chemical synthesis. …”
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  5. 885

    Exploring grape juice volatile compounds after inactive yeast extract foliar treatment using SPME and GC–MS by Laís Moro, David Fernando dos Santos, Mara Fernandes Moura Furlan, Armando Reis Tavares, José Luiz Hernandes, Eduardo Purgatto, Marco Antonio Tecchio

    Published 2025-01-01
    “…The volatile profile of the grape juice was determined using headspace solid phase microextraction (SPME) coupled with gas chromatography combined with mass spectrometry (GC–MS). At the end of this research, despite the application of yeast extract, no significant impact on vine productivity or the physicochemical parameters of the berries was observed. …”
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  6. 886

    A Possible Role of HMGB1 in DNA Demethylation in CD4+ T Cells from Patients with Systemic Lupus Erythematosus by Yaping Li, Chenghui Huang, Ming Zhao, Gongping Liang, Rong Xiao, Susan Yung, Tak Mao Chan, Qianjin Lu

    Published 2013-01-01
    “…In this study, we identified proteins that bind to Gadd45a in CD4+ T cells during SLE flare by using the method of co-immunoprecipitation and mass spectrometry, High mobility group box protein 1 (HMGB1) is one of identified proteins. …”
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  7. 887

    Separation, Purification, and Activity Analysis of Angiotensin Converting Enzyme Inhibitory Peptides in Enzymatically Hydrolyzed Egg Yolk of Chinese Soft-Shelled Turtle by LIU Huayu, LIAO Pengying, ZHANG Tianfeng, ZHANG Xinrui, DENG Yunning, LI Yaohua, WEI Jinrui, CHEN Jun

    Published 2025-01-01
    “…Liquid chromatography-tandem mass spectrometry (LC-MS/MS) was utilized for the identification of the active peptides, and bioinformatics tools were utilized for activity evaluation. …”
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  8. 888

    Association between microplastics and the functionalities of human gut microbiome by Bei Gao, Lixia Chen, Lizhi Wu, Shirui Zhang, Sunan Zhao, Zhe Mo, Zhijian Chen, Pengcheng Tu

    Published 2025-01-01
    “…In the present study, concentrations of microplastics in human blood were detected through pyrolysis-gas chromatography/mass spectrometry in 39 adults. Five types of microplastics were found in human blood, including polyvinyl chloride, polyethylene, polypropylene, polystyrene, and polyamide 66. …”
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  9. 889

    Genome Structure of Bacillus cereus tsu1 and Genes Involved in Cellulose Degradation and Poly-3-Hydroxybutyrate Synthesis by Hui Li, Suping Zhou, Terrance Johnson, Koen Vercruysse, Ouyang Lizhi, Parthasarathy Ranganathan, Nsoki Phambu, Alexander J. Ropelewski, Theodore W. Thannhauser

    Published 2017-01-01
    “…The five PHB genes in tsu1 (phaA, phaB, phaR, phaC, and phaP) were cloned and expressed with TOPO cloning, and the recombinant proteins were validated using peptide mapping of in-gel trypsin digestion followed by mass spectrometry analysis. The recombinant E. coli BL21 (DE3) (over)expressing phaC was found to accumulate PHB particles. …”
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  10. 890

    Volatile Organic Compounds of Anchote Tuber and Leaf Extracted Using Simultaneous Steam Distillation and Solvent Extraction by Yenenesh Ayalew, Dargie Tsegay Berhe, Nigusse Retta, Gulelat Desse, Ali Mohammed, Kyong Su Kim

    Published 2022-01-01
    “…Leaf and tuber powders were extracted for the first time to identify volatile organic compounds by simultaneous steam distillation and solvent extraction (SDE) and characterized using gas chromatography mass spectrometry (GC-MS). VOCs having an area percentage above 0.5% were used for identification analysis. …”
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  11. 891

    Cerebrovascular accidents association between serum trace elements and toxic metals level, a case-control study. by Khosro Jamebozorgi, Alireza Kooshki, Mahbobeh Saljoughi, Mohamadjavad Sanjari, Zahra Ahmadi, Seyed Mohammad Mosavi Mirzaei

    Published 2025-01-01
    “…The serum level of several metals, including Fe (Iron), Co (Cobalt), Ni (Nickel), Cu (copper), Zn (Zinc), Mn (Manganese), Pb (lead), Hg (Mercury), has been assessed using Inductively coupled plasma mass spectrometry (ICP-MS) method. Logistic regression (LR) has also been used to determine the association between metals' levels and CVA occurrence.…”
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  12. 892
  13. 893

    Health Risk Assessment of Pesticide Residues in Drinking Water of Upper Jhelum Region in Kashmir Valley-India by GC-MS/MS by M. Imran Ganaie, Ishrat Jan, Afshan Nabi Mayer, Alamgir A. Dar, Ishtiaq A. Mayer, Pervez Ahmed, Javid A. Sofi

    Published 2023-01-01
    “…Gas chromatography coupled with tandem mass spectrometry (GC-MS/MS) was used to determine pesticide residues in water samples. …”
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  14. 894

    Site-selective photo-crosslinking for the characterisation of transient ubiquitin-like protein-protein interactions. by Zac Sandy, Zijuan Wang, Deepak Behera, Benjamin M Foster, Finlay A Martin, Kira Brüninghoff, Kathleen M Cain, Wolfgang Dörner, Maria Jose Cabello-Lobato, Josep V Forment, Matthew J Cliff, Igor Larrosa, Perdita Barran, Duncan L Smith, Henning D Mootz, Christine K Schmidt

    Published 2025-01-01
    “…The stabilised protein complexes can be purified using affinity purification and identified by mass spectrometry. The resultant covalent bonds can withstand even the harshest washing conditions, allowing for the removal of indirect binders whilst retaining and capturing weak and transient interactors that are commonly lost during wash steps. …”
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  15. 895

    Coloring hot-dip galvanization of steel samples in industrial zinc-manganese baths by Godzsák M., Lévai G., Vad K., Csik A., Hakl J., Kulcsár T., Kaptay G.

    Published 2017-01-01
    “…The results are analyzed by Glow-discharge optical emission spectroscopy (GD-OES) and Secondary Neutral Mass Spectrometry (SNMS) techniques. It is shown that depending on the Mn-content and on the wall thickness of the steel the samples are coated by MnO of various thicknesses (in the range between 30 - 230 nm). …”
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  16. 896

    Investigating Metabolic Phenotypes for Sarcoidosis Diagnosis and Exploring Immunometabolic Profiles to Unravel Disease Mechanisms by Mohammad Mehdi Banoei, Abdulrazagh Hashemi Shahraki, Kayo Santos, Gregory Holt, Mehdi Mirsaeidi

    Published 2024-12-01
    “…<b>Methods:</b> Serum samples from patients with sarcoidosis (<i>n</i> = 40, including stage 1 to stage 4), were analyzed for metabolite levels by semi-untargeted liquid chromatography–mass spectrometry (LC-MS). Metabolomics data from patients with sarcoidosis were compared with those from patients with COVID-19 and healthy controls to identify distinguishing metabolic biosignatures. …”
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  17. 897

    Energy Metabolism and Lipidome Are Highly Regulated during Osteogenic Differentiation of Dental Follicle Cells by Oliver Pieles, Marcus Höring, Sadiyeh Adel, Torsten E. Reichert, Gerhard Liebisch, Christian Morsczeck

    Published 2022-01-01
    “…Expression and activity of metabolic markers were evaluated by western blot analysis and specific assays, relative amount of mitochondrial DNA was measured by real-time quantitative polymerase chain reaction, the oxidative state of cells was determined by a glutathione assay, and the lipidome of cells was analyzed via mass spectrometry (MS). Moreover, osteogenic markers were analyzed after the inhibition of fatty acid synthesis by 5-(tetradecyloxy)-2-furoic acid or C75. …”
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  18. 898

    A Critical Review of Proteomic Studies in Gestational Diabetes Mellitus by Tao Zhou, Lu Huang, Min Wang, Daozhen Chen, Zhong Chen, Shi-Wen Jiang

    Published 2020-01-01
    “…In the present review, we comprehensively summarized recent studies of gestational diabetes using mass spectrometry-based proteomic technologies. Focused on the entire experimental design and proteomic results, we showed that these studies have covered a broad range of research contents in terms of sampling time, sample types, and outcome associations. …”
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  19. 899

    Design and In Vitro Biological Evaluation of a Novel Organotin(IV) Complex with 1-(4-Carboxyphenyl)-3-ethyl-3-methylpyrrolidine-2,5-dione by Nebojša Đ. Pantelić, Bojana B. Zmejkovski, Željko Žižak, Nebojša R. Banjac, Bojan Đ. Božić, Tatjana P. Stanojković, Goran N. Kaluđerović

    Published 2019-01-01
    “…A novel triphenyltin(IV) compound with 1-(4-carboxyphenyl)-3-ethyl-3-methylpyrrolidine-2,5-dione was synthesized and characterized by IR, NMR spectroscopy, mass spectrometry, and elemental analysis. In vitro anticancer activity of ligand precursor and synthesized organotin(IV) compound was determined against tumor cell lines: human adenocarcinoma (HeLa), human myelogenous leukemia (K562), and human breast cancer (MDA-MB-453), using microculture tetrazolium test (MTT) assay. …”
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  20. 900

    Resistance of Biomphalaria alexandrina to Schistosoma mansoni and Bulinus truncatus to Schistosoma haematobium Correlates with Unsaturated Fatty Acid Levels in the Snail Soft Tissu... by Marian Elias, Rasha S. Hanafi, Samia El-Bardicy, Ebtisam A. Hafez, Rashika El Ridi

    Published 2020-01-01
    “…Snails were examined for presence or lack of infection association with soft tissue and hemolymph content of proteins, cholesterol, and triglycerides, evaluated using standard biochemical techniques and palmitic, oleic, linoleic, and arachidonic acid, assayed by ultraperformance liquid chromatography-tandem mass spectrometry. Successful schistosome infection of B. alexandrina and B. truncatus consistently and reproducibly correlated with snails showing highly significant (up to P<0.0001) decrease in soft tissue and hemolymph content of the monounsaturated fatty acid, oleic acid, and the polyunsaturated fatty acids, linoleic, and arachidonic acids as compared to naïve snails. …”
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