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Relevant bibliographies by topics / UPLC-TOF-MS

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Journal articles
Dissertations / Theses
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Conference papers

Academic literature on the topic 'UPLC-TOF-MS'

Author: Grafiati

Published: 10 September 2021

Last updated: 29 July 2025

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Journal articles on the topic "UPLC-TOF-MS"

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Patel, Prinesh N., D. Rajesh Kumar, S. Gananadhamu, and R. Srinivas. "Characterization of the stress degradation products of tolvaptan by UPLC-Q-TOF-MS/MS." RSC Advances 5, no. 27 (2015): 21142–52. http://dx.doi.org/10.1039/c4ra16644b.

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TVT was subjected to forced degradation under hydrolysis, oxidation, dry heat and photolysis conditions and the degradation products (DPs) formed have been characterized through UPLC-PDA and UPLC-Q-TOF-MS/MS studies.

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Zhao, Xiangsheng, Liwei Xie, Haifeng Wu, Weijun Kong, and Meihua Yang. "Analysis of six bioactive components in Semen Ziziphi Spinosae by UPLC-ELSD and UPLC-Q/TOF-MS." Anal. Methods 6, no. 15 (2014): 5856–64. http://dx.doi.org/10.1039/c4ay00800f.

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Liu, Yijun, Min Chen, Yimin Li, Xingqin Feng, Yunlan Chen, and Lijing Lin. "Analysis of Lipids in Green Coffee by Ultra-Performance Liquid Chromatography–Time-of-Flight Tandem Mass Spectrometry." Molecules 27, no. 16 (2022): 5271. http://dx.doi.org/10.3390/molecules27165271.

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Lipid components in green coffee were clarified to provide essential data support for green coffee processing. The types, components, and relative contents of lipids in green coffee were first analyzed by ultra-performance liquid chromatography–time-of-flight tandem mass spectrometry (UPLC-TOF-MS/MS). The results showed that the main fatty acids in green coffee were linoleic acid (43.39%), palmitic acid (36.57%), oleic acid (8.22%), and stearic acid (7.37%). Proportionally, the ratio of saturated fatty acids/unsaturated fatty acids/polyunsaturated fatty acids was close to 5.5:1:5.2. A total of

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Hayward, Douglas G., Jon W. Wong, Kai Zhang, et al. "Multiresidue Pesticide Analysis in Ginseng and Spinach by Nontargeted and Targeted Screening Procedures." Journal of AOAC INTERNATIONAL 94, no. 6 (2011): 1741–51. http://dx.doi.org/10.5740/jaoacint.sgehayward.

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Abstract Five different mass spectrometers interfaced to GC or LC were evaluated for their application to targeted and nontargeted screening of pesticides in two foods, spinach and ginseng. The five MS systems were capillary GC/MS/MS, GC-high resolution time-of-flight (GC/HR-TOF)-MS, TOF-MS interfaced with a comprehensive multidimensional GC (GCxGC/TOF-MS), an MS/MS ion trap hybrid mass (qTrap) system interfaced with an ultra-performance liquid chromatograph (UPLC-qTrap), and UPLC interfaced to an orbital trap high resolution mass spectrometer (UPLC/Orbitrap HR-MS). Each MS system was tested w

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Avula, Bharathi, Yan-Hong Wang, Troy J. Smillie, and Ikhlas A. Khan. "Column Liquid Chromatography/Electrospray Ionization-Time of Flight-Mass Spectrometry and Ultraperformance Column Liquid Chromatography/Mass Spectrometry Methods for the Determination of Ginkgolides and Bilobalide in the Leaves of Ginkgo biloba and Dietary Supplements." Journal of AOAC INTERNATIONAL 92, no. 2 (2009): 645–52. http://dx.doi.org/10.1093/jaoac/92.2.645.

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Abstract Column liquid chromatography/electrospray ionization-time of flight-mass spectrometry (LC/ESI-TOF-MS) and ultraperformance column liquid chromatographic/MS (UPLC/MS) methods were developed for the determination of 5 terpenelactones in the leaves of Ginkgo biloba. The separation was performed using a C18 column and a mobile phase composed of water and acetonitrile. The limit of detection (LOD) values for ginkgolide J, ginkgolide C, ginkgolide B, and ginkgolide A were found to be in the range of 110 ng/mL by both methods, and the bilobalide LOD was 200 ng/mL by LC/ESI-TOF and 35 ng/mL b

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Wu, Hongyu, Feng Feng, Xiunan Jiang, et al. "Pharmacokinetic and metabolic profiling studies of sennoside B by UPLC-MS/MS and UPLC-Q-TOF-MS." Journal of Pharmaceutical and Biomedical Analysis 179 (February 2020): 112938. http://dx.doi.org/10.1016/j.jpba.2019.112938.

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Wang, Guanghou, Hongjin Wang, Huan Liu, Yue Wang, Ziwei Lin, and Lixin Sun. "The rapid profiling and simultaneous determination of 12 major alkaloids in Nauclea officinalis by UPLC-Q-TOF-MS and HPLC-ESI-MS/MS." Analytical Methods 13, no. 47 (2021): 5787–803. http://dx.doi.org/10.1039/d1ay01571k.

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For the first time, we determined the phytochemical profile of alkaloids from N. officinalis using ultraperformance liquid chromatography-quadrupole-time-of-flight-tandem mass spectrometry (UPLC-Q-TOF-MS/MS).

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Rui, Wen, Hongyuan Chen, Yuzhi Tan, Yanmei Zhong, and Yifan Feng. "Rapid Analysis of the Main Components of the Total Glycosides of Ranunculus japonicus by UPLC/Q-TOF-MS." Natural Product Communications 5, no. 5 (2010): 1934578X1000500. http://dx.doi.org/10.1177/1934578x1000500521.

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A rapid method for the analysis of the main components of the total glycosides of Ranunculus japonicus (TGOR) was developed using ultra-performance liquid chromatography with quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS). The separation analysis was performed on a Waters Acquity UPLC system and the accurate mass of molecules and their fragment ions were determined by Q-TOF MS. Twenty compounds, including lactone glycosides, flavonoid glycosides and flavonoid aglycones, were identified and tentatively deduced on the basis of their elemental compositions, MS/MS data and relevant li

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Jin, Yiran, Tingting Tian, Yinghua Ma, et al. "Chemical profiling and total quality assessment of Isodon japonica using data-independent acquisition mode combined with superimposed multiple product ion UHPLC-Q-TOF-MS and chemometric analysis." RSC Advances 9, no. 3 (2019): 1403–18. http://dx.doi.org/10.1039/c8ra08732f.

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Xue, Ying, Wei Jin, Xian-Shun Xu, et al. "Quality Evaluation of Tricholoma matsutake based on the Nucleic Acid Compounds by UPLC-TOF/MS and UPLC-QqQ/MS." Molecules 24, no. 1 (2018): 34. http://dx.doi.org/10.3390/molecules24010034.

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So far, there has been no quality evaluation of Tricholoma matsutake. Nucleic acid compounds are a kind of functional ingredient in T. matsutake that is beneficial to human health. In this study, a UPLC-TOF/MS method was first used to scan and identify the potential nucleic acid compounds in T. matsutake. Based on the calculation of the molecular formula and subsequent confirmation by authentic standards, 15 nucleic acid compounds were unambiguously identified: adenosine, cytidine, guanosine, inosine, thymidine, uridine, xanthosine dehydrate, 2′-deoxyadenosine, 2′-deoxycytidine, 2′-deoxyguanos

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Dissertations / Theses on the topic "UPLC-TOF-MS"

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Bertilsson, Sarah. "Glycanmapping of glycoproteins with UPLC-FLR-MALDI/TOF-MS." Thesis, Uppsala universitet, Analytisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-228040.

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Thorén, Hanna. "The investigation of the biotransformation products formed by Cunninghamella elegans for different classes of drugs by the use of UPLC Q-TOF MS." Thesis, Uppsala universitet, Avdelningen för analytisk farmaceutisk kemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-248510.

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The fungus Cunninghamella elegans has in many studies shown to have abiotransformation similar to the metabolism of mammals. If the biotransformation isgeneral, it enables the production of metabolites by the fungus and the use asreference material. The purpose of the project were to examine whether themetabolic process of C. elegans is general, with respect to the formation ofglucosides, and can be applied to different classes of drugs. During the project, theanalyses were performed on a UPLC Q-TOF, run in both MSE and MSMS mode. Themobile phase used consisted of MeOH and 0.1 % formic acid in

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Kölfeldt, Niklas. "Development and evaluation of sample preparation procedure for human plasma samples in LC/MS-based metabolomics." Thesis, Uppsala universitet, Avdelningen för analytisk farmaceutisk kemi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-242982.

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The aim of this master thesis project was to develop methods for sample preparation and analysis by LC-MS suitable for global metabolomics of human plasma samples. In this thesis six different methods was tested, based on precipitation, solid phase extraction (SPE), and ultrafiltration. The methods differ in their mechanisms of action, but the end goal is the same, to remove the proteins and other high molecular weight compounds from the samples and to retain as many metabolites as possible in a reproducible manner. The LC-MS analysis were performed on a C18 and a HILIC type column using elect

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Roullier-Gall, Chloé. "Analyses métabolomiques du vin : "chemical messages in a bottle"." Thesis, Dijon, 2014. http://www.theses.fr/2014DIJOS080/document.

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L'objectif premier de ce travail de thèse était de développer des analyses métabolomiques non ciblées de vins en bouteilles afin de déchiffrer les informations chimiques relatives à l’évolution de leurs compositions avec le temps. Cette recherche initiale était fondée sur l'hypothèse que, lors de l'analyse, les vins en bouteilles gardent une mémoire chimique des paramètres environnementaux à l’œuvre au moment de leur élaboration (gestion du vignoble, pratiques œnologiques, climat, terroir). Une seconde hypothèse reposait sur la nécessité d’étudier le passé pour anticiper l’évolution de la qual

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Liu, Youzhong. "Etude des interactions levures/bactérie par métabolomique." Thesis, Dijon, 2015. http://www.theses.fr/2015DIJOS074/document.

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Le vin en tant qu’écosystème complexe est un modèle particulièrement intéressant pour l’étudie des interactions entre les microorganismes. L’interaction sans contact celluaire (interaction indirecte) entre la levure Saccharomyces cerevisae et la bactérie lactique Oenococcus oeni a un effect direct sur l’induction et l'achèvement de la fermentation malolactique (FML), une fermentation très importante pour la qualité du vin. Une souche levurienne peut être classée FML+ si elle stimule la croissance bactérienne et FML- si elle a un effet inhibiteur. Les métabolites connus qui inhibent ou stimulen

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Verza, Simone Gasparin. "Obtenção e caracterização de frações purificadas de saponinas de chenopodium quinoa e avaliação da formação de complexos do tipo iscom : atividades biológicas das frações e dos complexos formados." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2011. http://hdl.handle.net/10183/61007.

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As sementes de Chenopodium quinoa (quinoa) são conhecidas pelo seu elevado teor de proteína bem como de saponinas. Quimicamente as saponinas de quinoa são triterpenos sendo ácido fitolacagênico, hederagenina, ácido oleanólico e ácido serjânico, as agliconas mais comumente encontradas. Para as saponinas de quinoa existem relatos contraditórios de atividade imunoadjuvante. Complexos imunoestimulantes têm sido bastante estudados nos últimos anos por atuarem como carreadores de antígenos. Esses complexos são constituídos, de saponinas, colesterol, fosfolipídios e um antígeno (ISCOM); na ausência d

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Machado, Alexandra Maria Pinto. "Contribuição para o conhecimento do perfil metabolómico e das potencialidades farmacológicas de Hypericum Foliosum Aiton." Master's thesis, 2012. http://hdl.handle.net/10451/11322.

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Tese de mestrado, Medicamentos à Base de Plantas, Universidade de Lisboa, Faculdade de Farmácia, 2012<br>O presente trabalho teve como principais objetivos a caraterização fitoquímica e a avaliação da atividade biológica da fração éter dietílica de Hypericum foliosum Aiton, obtida a partir de um extrato metanólico de partes aéreas desta espécie. Neste estudo, foram igualmente comparados os compostos químicos identificados na espécie Hypericum foliosum Aiton (H. foliosum), com mais duas espécies de Hypericum presentes na flora portuguesa, nomeadamente Hypericum perforatum L. (H. perforatum) e

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Book chapters on the topic "UPLC-TOF-MS"

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Hernández, Félix, Juan V. Sancho, and María Ibáñez. "Use of UPLC-(Q)TOF MS for Rapid Screening of Organic Micropollutants in Water." In Liquid Chromatography Time-of-Flight Mass Spectrometry. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470429969.ch5.

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Liang, J., Z. Chen, Z. Li, et al. "Extraction and determination of α-solanine in tomato samples with UPLC/Q-TOF–MS." In Advances in Energy Science and Equipment Engineering II. CRC Press, 2017. http://dx.doi.org/10.1201/9781315116174-21.

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Stolker, AlidaLindaA M. "Application of UPLC/TOF-MS for Residue Analysis of Veterinary Drugs and Growth-Promoting Agents in Products of Animal Origin." In Liquid Chromatography Time-of-Flight Mass Spectrometry. John Wiley & Sons, Inc., 2008. http://dx.doi.org/10.1002/9780470429969.ch12.

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Conference papers on the topic "UPLC-TOF-MS"

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Chen, Guanzhong, Wei Wei, Nan Xiang, Xinhui Pan, and Xiaoda Yang. "Screening of Urea Transporter Inhibitors in Celery Seeds by UPLC-TOF-MS." In ECMC 2022. MDPI, 2022. http://dx.doi.org/10.3390/ecmc2022-13278.

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Barda, C., M. E. Grafakou, J. Heilmann, and H. Skaltsa. "UPLC-Q-TOF MS/MS metabolomic analysis of Crepis incana polar extract, a Greek endemic representative of the tribe Cichorieae." In GA – 69th Annual Meeting 2021, Virtual conference. Georg Thieme Verlag, 2021. http://dx.doi.org/10.1055/s-0041-1736867.

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Revelou, Panagiota-Kyriaki, Marinos Xagoraris, Eleftherios Alissandrakis, Christos S. Pappas, and Petros A. Tarantilis. "Determination of 4(5)-Methylimidazole in Sugar–Amino Acid Aqueous Model Systems by UPLC-Q-ToF-MS." In Foods 2022. MDPI, 2022. http://dx.doi.org/10.3390/foods2022-12957.

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Revelou, Panagiota-Kyriaki, Marinos Xagoraris, Alexandros Michail, Maroula G. Kokotou, and Violetta Constantinou-Kokotou. "Development of a UPLC-Q-ToF-MS Method for the Determination of Sulforaphane and Iberin in Cruciferous Vegetables." In IECN 2022. MDPI, 2022. http://dx.doi.org/10.3390/iecn2022-12389.

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Yao, Z., Z. Qin, P. Lin, et al. "Case study of Allii Macrostemonis Bulbus: From chemical and metabolic profile to quality control by UPLC/Q-TOF-MS." In GA 2017 – Book of Abstracts. Georg Thieme Verlag KG, 2017. http://dx.doi.org/10.1055/s-0037-1608517.

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