Relevant bibliographies by topics / UHPLC-ESI

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Academic literature on the topic 'UHPLC-ESI'

Author: Grafiati
Published: 4 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "UHPLC-ESI"

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Nikolić, Valentina, Jelena Zvezdanović, and Sandra Konstantinović. "UHPLC-DAD-ESI-MS analysis of the 'Centaurium erythraea' infusion." Advanced Technologies 11, no. 1 (2022): 13–21. http://dx.doi.org/10.5937/savteh2201013n.

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Chemical composition was estimated in a tea sample, i.e. infusion prepared from dried aerial herb of Centaurium erythraea. The plant was harvested in the Stara Planina mountain (Serbia, 42°43'00"N; 24°55'04"E) during the flowering stage. The flowering tops of the plant were dried to the moisture content of 7.89 (w/w) in a dark place. Qualitative analysis was done by Ultrahigh performance liquid chromatography-diode array detector-electrospray mass spectrometry (UH-PLC-DAD-ESI-MS/MS) method. The aim of this study was to detect and identify phytochemicals in the infusion prepared in a traditiona
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Manninen, Marianna, Maarit Karonen, and Juha-Pekka Salminen. "Chemotaxonomic Markers for the Leaf Buds of Common Finnish Trees and Shrubs: A Rapid UHPLC MS Fingerprinting Tool for Species Identification." Molecules 27, no. 20 (2022): 6810. http://dx.doi.org/10.3390/molecules27206810.

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In this study, a chemotaxonomic tool was created on the basis of ultra-high-performance liquid chromatography–mass spectrometry (UHPLC–MS) for the identification of 13 common Finnish deciduous trees and shrubs from their leaf bud metabolites. The bud extracts were screened with UHPLC–ESI–QqQ–MS and UHPLC–ESI–Q–Orbitrap–MS to discover suitable markers for each species. Two approaches were tested in the marker selection: (1) unique species-specific markers to obtain selective fingerprints per species and (2) major markers to maximise the sensitivity of the fingerprints. The markers were used to
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Wang, Jian, Wendy Cheung, and Willis Chow. "Ultra-High Performance Liquid Chromatography/Electrospray Ionization-Tandem Mass Spectrometry Determination of 151 Pesticides in Soybeans and Pulses." Journal of AOAC INTERNATIONAL 96, no. 5 (2013): 1114–33. http://dx.doi.org/10.5740/jaoacint.12-465.

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Abstract This paper presents the application of ultra-high performance LC (UHPLC) and MS for the determination of 151 pesticides in soybeans and pulses. A core-shell particle (2.6 μm particle size) column and a fully porous sub-2 μm (1.7 μm particle size) column showed comparable performance in chromatographic resolution and separation, increasing selectivity, and reducing analysis time. UHPLC was coupled with either a triple quadrupole mass analyzer (MS/MS) or a quadrupole Orbitrap (namely Orbital trap) mass spectrometer (Q-Orbitrap MS), which possesses fast data acquisition capability. Both
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Nannapaneni, Nagaraj Kumar, Sunil S. Jalalpure, Rajendraprasad Muppavarapu, and Sunil Kumar Sirigiri. "An ultra high performance liquid chromatography-tandem mass spectrometry method for the quantification of linagliptin in human plasma." RSC Advances 6, no. 71 (2016): 66756–66. http://dx.doi.org/10.1039/c6ra10450a.

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Studzińska, Sylwia, Piotr Cywoniuk, and Krzysztof Sobczak. "Application of ion pair chromatography coupled with mass spectrometry to assess antisense oligonucleotides concentrations in living cells." Analyst 144, no. 2 (2019): 622–33. http://dx.doi.org/10.1039/c8an01603h.

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Yang, Chun-Ju, Wu-Hsun Chung, and Wang-Hsien Ding. "Optimization of double-vortex-assisted matrix solid-phase dispersion for the rapid determination of paraben preservative residues in leafy vegetables." RSC Advances 10, no. 58 (2020): 35557–64. http://dx.doi.org/10.1039/d0ra05658h.

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Chen, Yung-Chih, Yi-Ting Ao, and Wang-Hsien Ding. "Determination of microcystins in water samples by deep eutectic solvent-based vortex-assisted liquid–liquid microextraction coupled with ultrahigh-performance liquid chromatography-high resolution mass spectrometry." RSC Advances 9, no. 66 (2019): 38669–76. http://dx.doi.org/10.1039/c9ra07544e.

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Sharma, Yashaswini, Ravikishore Velamuri, John Fagan, and Jim Schaefer. "Full-Spectrum Analysis of Bioactive Compounds in Rosemary (Rosmarinus officinalis L.) as Influenced by Different Extraction Methods." Molecules 25, no. 20 (2020): 4599. http://dx.doi.org/10.3390/molecules25204599.

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Rosmarinus officinalis is a potent antioxidant herb rich in polyphenols. Ultra-high-performance liquid chromatography, coupled with electrospray ionization and quadrupole-time of flight mass spectrometry (UHPLC-ESI-QTOF-MS), enables an exhaustive, full-spectrum analysis of the molecular constituents of natural products. The study aimed to develop a rapid UHPLC method to contribute new insights into the phytochemical composition of rosemary and to assess the performance of nine different procedures for extraction. These include fresh tissue homogenization, fresh and dry leaf decoction, and thei
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Sepúlveda, Beatriz, Alberto Cornejo, Daniela Bárcenas-Pérez, José Cheel, and Carlos Areche. "Two New Fumarprotocetraric Acid Lactones Identified and Characterized by UHPLC-PDA/ESI/ORBITRAP/MS/MS from the Antarctic Lichen Cladonia metacorallifera." Separations 9, no. 2 (2022): 41. http://dx.doi.org/10.3390/separations9020041.

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Lichens are symbiotic organisms between algae and fungi, which are makers of secondary compounds named as lichen substances. Hyphenated techniques have significantly helped natural product chemistry, especially UHPLC/ESI/MS/MS in the identification, separation, and tentative characterization of secondary metabolites from natural sources. Twenty-five compounds were detected from the Antarctic lichen Cladonia metacorallifera for the first time using UHPLC-PDA/ESI/Orbitrap/MS/MS. Compounds 5 and 7 are reported as new compounds, based on their MS/MS fragmentation routes, and considered as fumarpro
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Ma, You-Ning, Wen-Jun Gui, and Guo-Nian Zhu. "The analysis of azocyclotin and cyhexatin residues in fruits using ultrahigh-performance liquid chromatography-tandem mass spectrometry." Analytical Methods 7, no. 5 (2015): 2108–13. http://dx.doi.org/10.1039/c4ay02624a.

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Ultrahigh-performance liquid chromatography coupled to electrospray positive ionization and tandem mass spectrometry (UHPLC-ESI(+)-MS/MS) was applied for the quantification and identification of azocyclotin and cyhexatin in fruit samples.
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Dissertations / Theses on the topic "UHPLC-ESI"

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Jouravel, Glorianne. "Stratégies innovantes pour une valorisation d’extraits de plantes en cosmétique : Mise en oeuvre d’un outil de profilage métabolique et recherche de nouvelles activités biologiques." Thesis, Orléans, 2018. http://www.theses.fr/2018ORLE2017.

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La cosmétique valorise des extraits de plantes en les intégrant dans des produits de soin. Ces extraits constituent les ingrédients actifs de la formule cosmétique. Les plantes sont diverses, riches et contiennent de nombreux composés d’intérêt biologique. La phytochimie s’intéresse à décrire le contenu métabolique d’extraits de plantes. Mais la caractérisation moléculaire de ces matrices complexes reste un défi majeur aujourd’hui. En effet, les étapes de traitements de données sont longues et laborieuses. Un outil de profilage métabolique, GAINS, a ainsi été développé afin de traiter de façon
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Garros, Laurine. "Impact de conduites culturales innovantes sur la production de métabolites actifs pour la Cosmétique." Thesis, Orléans, 2021. http://www.theses.fr/2021ORLE3155.

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La valorisation de la richesse de la biodiversité régionale et la mise en place d’une démarche durable dans la production de bioactifs répond au besoin de l’industrie cosmétique dans un contexte réglementaire contraignant. Ce projet s’inscrit dans une démarche de valorisation du patrimoine végétal et de l’industrie locale de la région Centre-Val de Loire. Dans le cadre de ce projet, 13 plantes ou leurs co-produits issus de la biodiversité locale ou d’intérêt pour la filière horticole ont été sélectionnés et étudiés. Des tests in tubo ont été effectués sur les extraits de ces 13 plantes afin de
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Junior, Vinicius Ricardo Acquaro. "Desenvolvimento de diferentes métodos LC-MS/MS para a determinação de fármacos e endocanabinóides em amostras de plasma." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/59/59138/tde-31052018-223216/.

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Esta tese foi dividida em três capítulos. O capítulo I descreve o desenvolvimento do método Column switching UHPLC-MS/MS para a determinação simultaneamente de fármacos psicotrópicos em amostras de plasma de pacientes esquizofrênicos. A politerapia é uma prática comum no tratamento da esquizofrenia. Portanto, a monitorização terapêutica destes fármacos tem sido realizada para o ajuste das doses e individualização da terapia farmacológica. O método Column switching UHPLC-MS/MS apresentou linearidade na faixa de concentração de 0,025 a 1,25 ng mL-1 com R2 acima de 0,9950 e a falta de teste de aj
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Melo, Priscilla Siqueira. "Compostos fenólicos de resíduos agroindustriais: identificação, propriedades biológicas e aplicação em matriz alimentar de base lipídica." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/11/11141/tde-17062016-094619/.

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A geração de resíduos sólidos pelas atividades agroindustriais tem criado a demanda por um reaproveitamento tecnológico desses materiais. Assim, o objetivo deste trabalho foi avaliar o potencial bioativo e tecnológico de resíduos agroindustriais, como fontes naturais de compostos fenólicos com atividade antioxidante. Foram analisados resíduos agroindustriais vinícolas, de indústrias produtoras de polpas congeladas de frutas (açaí, cajá, cupuaçu e graviola) e provenientes do beneficiamento de café e de laranja. Inicialmente, foi realizado um estudo para a determinação das condições ótimas de ex
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Barros, André Luis Corrêa de. "Otimização e validação da técnica de extração líquido-líquido com partição a baixa temperatura para a análise de agrotóxicos via UHPLC-ESI-MS/MS em águas superficiais em Ouro Branco/MG." reponame:Repositório Institucional da UFOP, 2014. http://www.repositorio.ufop.br/handle/123456789/4232.

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Programa de Pós-Graduação em Engenharia Ambiental. PROÁGUA, Pró-Reitoria de Pesquisa e Pós Graduação, Universidade Federal de Ouro Preto.<br>Submitted by Oliveira Flávia (flavia@sisbin.ufop.br) on 2015-01-08T15:30:30Z No. of bitstreams: 2 license_rdf: 22190 bytes, checksum: 19e8a2b57ef43c09f4d7071d2153c97d (MD5) DISSERTAÇÃO_OtimizaçãoValidaçãoTécnica.pdf: 3321502 bytes, checksum: c92e9876dcab8a3282603cf1198f5aad (MD5)<br>Approved for entry into archive by Gracilene Carvalho (gracilene@sisbin.ufop.br) on 2015-01-16T15:35:11Z (GMT) No. of bitstreams: 2 license_rdf: 22190 bytes, checksum: 19e8a2
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Alamil, Helena. "Etude de profils en adduits à l'ADN comme biomarqueurs potentiels d'exposition aux polluants aériens en milieu urbain dans une approche de type adductomique." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC407/document.

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De nombreuses études dans la seconde moitié du 20ème siècle, ont mis en évidence que des génotoxiques cancérogènes réagissent avec l'ADN pour former par liaison covalente des adduits qui sont impliqués dans le processus cancérigène. Bien qu’il existe des preuves convaincantes de la présence de multiples adduits à l'ADN dans les poumons de sujets exposés au tabagisme ou en milieu professionnel à un aldéhyde donné, il est évident que c'est un domaine dans lequel des recherches supplémentaires ont été nécessaires. L’objectif de ce travail de thèse est d’établir des profils d’adduits exocycliques
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Le, Thao Nhi. "Le frelon asiatique (Vespa velutina nigrithorax) : Stratégies d’études sur l’identification de nouvelles molécules actives pour la dermacosmétique." Thesis, Orléans, 2020. http://www.theses.fr/2020ORLE3143.

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La recherche de nouveaux composés pour prévenir ou atténuer le vieillissement de la peau est une priorité des recherches actuelles dans les cosmétiques. Dans ce contexte, le venin de frelon asiatique (Vespa velutina nigrithorax) a été étudié comme une source particulière de molécules potentiellement bioactives d’intérêt dermacosmétique. La première étude a tout d’abord porté sur la mise en œuvre d’un protocole fiable d’extraction et récupération du venin. Puis, la fraction peptidique et petites molécules a été sélectionnée afin d’évaluer, en comparaison avec le venin brut, la présence de moléc
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Lopez, Begoña Gimenez-Cassina 1984. "Análise da composição de amostras de própolis vermelha do Brasil por espectrometria de massas com ionização por eletrospray e cromatografia líquida de ultra-eficiência (UPLC-ESI-MS) e avaliação da atividade antioxidante e antimicrobiana = Analysis of the composition of samples of red brazilian propolis by mass spectrometry with electrospray ionization and ultra high performance liquid chromatography (UPLC-ESI-MS) and evaluation of the antioxidant and antimicrobial activity." [s.n.], 2014. http://repositorio.unicamp.br/jspui/handle/REPOSIP/316101.

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Orientador: Alexandra Christine Helena Frankland Sawaya<br>Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Biologia<br>Made available in DSpace on 2018-08-24T09:51:06Z (GMT). No. of bitstreams: 1 Lopez_BegonaGimenez-Cassina_M.pdf: 5145110 bytes, checksum: e91f0a5d069796983ac9064ccc7af78c (MD5) Previous issue date: 2014<br>Resumo: A palavra própolis tem origem Grega: pro significa em defensa de, e polis significa comunidade. A própolis é usada pelas abelhas para fortalecer as paredes da colmeia e para cobrir as paredes internas e por devido a sua atividade antimicrobi
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Pecha, Stanislav. "Porovnání ESI a APCI ionizace při vývoji UHPLC-MS/MS metodiky pro stanovení fenolických kyselin." Master's thesis, 2015. http://www.nusl.cz/ntk/nusl-333490.

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Charles University in Prague, Faculty of Pharmacy in Hradec Králové Department of Analytical Chemistry Candidate: Stanislav Pecha Supervisor: Assoc. Prof. PharmDr. Lucie Nováková, Ph.D. Title of Graduation Thesis: A comparison of ESI and APCI ionization during the development of UHPLC-MS/MS method for the determination of phenolic acids. Phenolic acids are aromatic secondary metabolites which are widely spread in the whole plant kingdom. The thesis deals with the development of the method for the determination of the group of phenolic acids by ultra high performance liquid chromatography coupl
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Skafi, Mourad. "Analyse des cyanotoxines dans différents organismes aquatiques et habitats de la réserve écologique de la Rivière-aux-Brochets." Thesis, 2021. http://hdl.handle.net/1866/25441.

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La diversité et la distribution des cyanobactéries dans les écosystèmes aquatiques conduisent à des effets nuisibles dans l’eau par la production d’une variété de toxines cyanobactériennes qui présentent des risques pour la faune et la santé humaine. Différentes techniques analytiques émergentes ont été développées pour détecter et quantifier les toxines cyanobactériennes dans l'environnement. Dans ce mémoire nous avons examiné la présence de cyanotoxines multi-classes, dont 12 microcystines, les anatoxines, la cylindrospermopsine (CYN), les anabaenopeptines (AP-A, AP-B) et la cyanopeptoline-A
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Book chapters on the topic "UHPLC-ESI"

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Vaissayre, Virginie, Guillaume Cazals, Timothy J. Tranbarger, and Fabienne Morcillo. "The Quantification of Jasmonates in Lipid-Rich Tissues by UHPLC-ESI-QQQ-MS/MS in Multiple Reaction Monitoring (MRM)." In Methods in Molecular Biology. Springer US, 2025. https://doi.org/10.1007/978-1-0716-4470-6_3.

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Gonzalez-Riano, Carolina, Antonia García, and Coral Barbas. "Untargeted Metabolomics Determination of Postmortem Changes in Brain Tissue Samples by UHPLC-ESI-QTOF-MS and GC-EI-Q-MS." In Neuromethods. Springer US, 2020. http://dx.doi.org/10.1007/978-1-0716-0864-7_20.

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Bi, Hongyan. "Mass Spectrometry (MS)-based Bacterial Identification in the Food Industry." In Detection and Analysis of Microorganisms by Mass Spectrometry. Royal Society of Chemistry, 2023. http://dx.doi.org/10.1039/bk9781837670338-00303.

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Mass spectrometry (MS) has been broadly applied for the analysis of bacteria in various food matrices. This chapter comprehensively summarizes MS-based bacterial identification in different foods. The detection of pathogenic microbes in animal-based foods including poultry, aquatic food products, beef, and porcine meat as well as plant-based foods including fruits, lettuce, nuts, rice seeds, and potatoes is addressed. The detection of bacteria in processed foods, including fruit juice, ready-to-eat foods, baby foods, and fermented food products, as well as probiotics used in (canned) foods, is
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Conference papers on the topic "UHPLC-ESI"

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Ouyang, Hui, Huiping Liao, Junmao Li, et al. "COMPARATIVE METABOLISM CHARACTERISTICS RESEARCH OF TETRAHYDROPALMATINE IN FIVE SPECIES (DOG, HUMAN, MICE, MONKEY, AND RAT) LIVER MICROSOMES BY UHPLC/ESI-QTOF-MS/MS." In 2016 International Conference on Biotechnology and Medical Science. WORLD SCIENTIFIC, 2016. http://dx.doi.org/10.1142/9789813145870_0023.

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Byrdwell, William, and Hari Kiran Kotapati. "Fast chromatography with dual parallel mass spectrometry for lipidomic analysis and regioisomer quantification of pulse lipids." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/kxye7490.

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Pulses are seeds produced from legumes. More specifically, the United Nations Food and Agricultural Organization (FAO) defines pulses as “Leguminosae crops harvested exclusively for their grain, including dry beans, peas and lentils”. This excludes oilseeds, such as soybeans and peanuts. Pulses are well known for their high content of protein and fiber. Most pulses do not contain a lot of oil, and there is not abundant information in the literature on pulse oil triglycerides, or triacylglycerols (TAGs). But pulses are consumed in large quantities in diets around the globe, so even lower am
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