Showing 641 - 660 results of 1,443 for search '"mass spectrometry"', query time: 0.05s Refine Results
  1. 641

    Salivary Metabolomics Fingerprint of Chronic Apical Abscess with Sinus Tract: A Pilot Study by Noemi Montis, Elisabetta Cotti, Antonio Noto, Claudia Fattuoni, Luigi Barberini

    Published 2019-01-01
    “…Metabolomic profiles were obtained using a gas chromatography/mass spectrometry instrument. Subsequently, in order to compare the two groups, a multivariate statistical model was built that resulted to be statistically significant. …”
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    Article
  2. 642

    A Review of Detection of Antibiotic Residues in Food by Surface-Enhanced Raman Spectroscopy by Jun-Fa Liang, Cheng Peng, Peiyu Li, Qiu-Xiong Ye, Yu Wang, Yun-Ting Yi, Zi-Sheng Yao, Gui-Yun Chen, Bin-Bin Zhang, Jia-Jian Lin, Qizhi Luo, Xuncai Chen

    Published 2021-01-01
    “…Traditional analytical methods, such as liquid chromatography, liquid chromatography mass spectrometry, and capillary electrophoresis, involve time-consuming sample preparation and complicated operation and require expensive instrumentation. …”
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    Article
  3. 643

    Determination of Glucocorticoids in UPLC-MS in Environmental Samples from an Occupational Setting by Enrico Oddone, Sara Negri, Massimo Bellinzona, Silvia Martino, Marcello Di Tuccio, Elena Grignani, Danilo Cottica, Marcello Imbriani

    Published 2015-01-01
    “…We developed an analytical method to quantify simultaneously 21 glucocorticoids using UPLC coupled with mass spectrometry to provide a basis to carry out environmental monitoring. …”
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  4. 644

    Purification, structural elucidation, and in vitro antitumor effects of novel polysaccharides from Bangia fuscopurpurea by Jingna Wu, Xiaoting Chen, Kun Qiao, Yongchang Su, Zhiyu Liu

    Published 2021-01-01
    “…The structural characteristics of BFP-3 were investigated by chemical and spectroscopic methods, including partial acid hydrolysis, methylation analysis, one- and two-dimensional nuclear magnetic resonance, and gas chromatography-mass spectrometry. The results showed that BFP-3 was mainly comprised of rhamnose, arabinose, mannose, glucose, and galactose. …”
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  5. 645

    Synthesis, characterization, and in silico studies of substituted 2,3-dihydro-1,3,4-thiadiazole derivatives by Yasser H. Zaki, Sobhi M. Gomha, Basant Farag, Magdi E.A. Zaki, Ahmed M. Hussein

    Published 2025-01-01
    “…The structures of these compounds were confirmed through spectroscopic analysis (1H NMR, 13C NMR, IR, and mass spectrometry) and elemental analysis. Quantum mechanical calculations were employed to gain deeper insights into the structural and electronic properties of these molecules. …”
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    Article
  6. 646

    Erythrocyte Storage Lesion Improvements Mediated by Naringin Screened from Vegetable/Fruit Juice Using Cell Extract and HPLC-MS by Yuqi She, Qiong Liu, Xiyue Xiong, Ning Li, Jian Zhang

    Published 2022-01-01
    “…The blood samples were stored for 35 days at 4°C, and the supernatants were performed high liquid chromatography–mass spectrometry (HPLC-MS) analysis at 0 days, 14 days, and 35 days. …”
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  7. 647

    Identification of Raoultella terrigena as a Rare Causative Agent of Subungual Abscess Based on 16S rRNA and Housekeeping Gene Sequencing by Yu Wang, Xiawei Jiang, Zemin Xu, Chaoqun Ying, Wei Yu, Yonghong Xiao

    Published 2016-01-01
    “…Bacteria were isolated from pus samples, and an inconsistent identification was shown by VITEK 2 system and MALDI-TOF mass spectrometry as Raoultella planticola and Raoultella terrigena, respectively. …”
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    Article
  8. 648

    Effect of Extruding Full-Fat Soy Flakes on Trans Fat Content by Hongxia Feng, Xiaonan Sui, Yunhe Chang, Baokun Qi, Yan Zhang, Yang Li, Lianzhou Jiang

    Published 2014-01-01
    “…It was found that only five different types of TFAs were detected out using gas chromatography-mass spectrometry. Before the extrusion started, the initial amount of total TFAs was 3.04 g/100 g. …”
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  9. 649

    Discovery of bicyclic borane molecule B14H26 by Xiaoni Zhang, Tomoko Fujino, Yasunobu Ando, Yuki Tsujikawa, Tianle Wang, Takeru Nakashima, Haruto Sakurai, Kazuki Yamaguchi, Masafumi Horio, Hatsumi Mori, Jun Yoshinobu, Takahiro Kondo, Iwao Matsuda

    Published 2025-01-01
    “…Uniquely, this synthesis method involves a decomposition mechanism rather than traditional atom-by-atom assembly, marking an unique approach to constructing complex borane structures. The mass spectrometry unveiled that the stable molecule has a mass of 178 in atomic mass unit with a stoichiometry of B14H26. …”
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  10. 650

    Prevalence of Aflatoxin Contamination in Peanuts and Peanut Butter from an Informal Market, Harare, Zimbabwe by V. P. Masaka, N. Ndlovu, R. S. Tshalibe, T. C. Mhande, T. Z. Jombo

    Published 2022-01-01
    “…Aflatoxin contamination was determined using liquid chromatography-mass spectrometry (LC-MS). The results revealed that sixty percent (60%) of the raw peanut samples were contaminated with total aflatoxin ranging from <0.75 to 426.4 μg/kg. …”
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  11. 651

    Progresses in Fluid Inclusion Synthesis in Quartz by Jun Du, Honglun Chang, Hongwei Liu

    Published 2022-01-01
    “…Furthermore, it is suggested that in situ and (or) large volume fluid inclusion synthesis will be an important future direction in view of the growing applications of the FIS techniques in combination with microanalytical techniques, especially the Laser Ablation-Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS). Our review would provide technical guidance to those who wish to investigate HTHP fluids and be beneficial to the future development and applications of the FIS techniques.…”
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  12. 652

    (Pyridin-2-ylmethyl)porphyrins: synthesis, characterization and C–N oxidative fusion attempts by Berthelot, Mathieu, Echaubard, Julie, Bousfiha, Asmae, Devillers, Charles H.

    Published 2024-06-01
    “…These products were characterized by NMR spectroscopy, UV–visible absorption spectroscopy, mass spectrometry and electrochemistry. Attempts to generate the C–N-fused compound by oxidation (new bond between the nitrogen of the pyridinyl substituent and the β-pyrrolic position of the porphyrin) are also described.…”
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  13. 653

    An Overview of Energy Recovery from Local Slaughterhouse-Based Gallus gallus domesticus Greasy Residues and Latest Applications by Zacharie Merlin Ayissi, Alain Fokoua Fongain, Leonel Tsafack Dongmo, Hossain Nazia, Rhiad Alloune, Innocent Ndoh Mbue, Ruben Mouangue

    Published 2022-01-01
    “…Gas chromatography coupled with mass spectrometry reveals the intrinsic composition of the acids derived from the developed biodiesel methyl esters. …”
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  14. 654

    Influence of Acute High Glucose on Protein Abundance Changes in Murine Glomerular Mesangial Cells by Michelle T. Barati, James C. Gould, Sarah A. Salyer, Susan Isaacs, Daniel W. Wilkey, Michael L. Merchant

    Published 2016-01-01
    “…Two-dimensional gel electrophoresis and matrix assisted laser desorption ionization time of flight mass spectrometry methods were used to identify protein expression patterns in immortalized rat mesangial cells altered by 2 h high glucose (HG) growth conditions as compared to isoosmotic/normal glucose control (NG⁎) conditions. …”
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  15. 655

    Distinct vaginal microbiome and metabolome profiles in women with preterm delivery following cervical cerclage by Jun Zhang, Li Li, Mengjun Zhang, Jiaoning Fang, Zhimin Xu, Yijing Zheng, Zhi Lin, Mian Pan

    Published 2025-02-01
    “…In addition, vaginal metabolomics-based liquid chromatography–Orbitrap–tandem mass spectrometry (LC-Orbitrap-MS/MS) found that the alteration in vaginal metabolites in pregnant women with PTB is involved in starch and sucrose metabolism; arginine and praline metabolism; galactose metabolism; purine metabolism; arginine metabolism; tryptophan metabolism and N-glycan biosynthesis; cysteine and methionine metabolism; taurine and hypotaurine metabolism; amino acid metabolism; propanoate metabolism; valine, leucine, and isoleucine biosynthesis; glycine, serine, and threonine metabolism; and steroid hormone biosynthesis. …”
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  16. 656

    Efficacy of Household and Commercial Washing Agents in Removing the Pesticide Thiabendazole Residues from Fruits by Xinyi Du, Lauren Ho, Sisheng Li, Jeffery Doherty, Junghak Lee, John M. Clark, Lili He

    Published 2025-01-01
    “…Both protocols were effective across various fruits (apples, grapes, lemons, strawberries), validated by liquid chromatography–mass spectrometry (LC-MS/MS) analyses. However, safety concerns regarding the composition of Product 4 highlighted the benefits of homemade strategies. …”
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  17. 657

    Determination of Tenacissoside G, Tenacissoside H, and Tenacissoside I in Rat Plasma by UPLC-MS/MS and Their Pharmacokinetics by Fan Chen, Yizhe Ma, Ying Cui, Wanhang Wang, Chenchen Mei, Jingjing Nie, Congcong Wen, Xiuwei Shen, Xuzhao Zhou

    Published 2023-01-01
    “…An ultra-performance liquid chromatography/tandem mass spectrometry (UPLC-MS/MS) method was developed for the determination of tenacissoside G, tenacissoside H, and tenacissoside I in rat plasma. …”
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    Article
  18. 658

    Light Hydrocarbon Geochemistry: Insight into Mississippian Crude Oil Sources from the Anadarko Basin, Oklahoma, USA by Ibrahim Atwah, Stephen Sweet, John Pantano, Anthony Knap

    Published 2019-01-01
    “…A set of oil samples was examined for composition using high-performance gas-chromatography and mass-spectrometry techniques. The result shows a distinct geochemical fingerprint reflected in biomarkers such as the abundance of extended tricyclic terpanes, together with heptane star diagrams, and diamantane isomeric distributions. …”
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    Article
  19. 659

    Production of clusters and thin films of nitrides, oxides and carbides by pulsed laser ablation and deposition by S. Orlando, A. Paladini, A. Santagata, V. Marotta, G. P. Parisi, M. Satta, D. Scuderi, D. Catone, A. Giardini, A. Mele

    Published 2004-01-01
    “…A short introduction on the principles of laser-matter interaction, material evaporation, plume formation, its reactivity with suitable gases and finally deposition are here illustrated. Experiments by mass spectrometry of formation of clusters, precursors of thin films and nanoparticles of oxides, nitrides and carbides by pulsed laser ablation (PLA) are reported. …”
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  20. 660

    Interspecific and Intersexual Differences in the Chemical Composition of Floral Scent in Glochidion Species (Phyllanthaceae) in South China by Daihong Huang, Fuchen Shi, Minwei Chai, Ruili Li, Houhun Li

    Published 2015-01-01
    “…Floral volatiles of male and female flowers of five Glochidion species in south China were collected by dynamic headspace absorption technique and then were chemically analyzed by using gas chromatography-mass spectrometry. A total of 69 compounds were identified from floral scents of five investigated species. …”
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    Article