Relevant bibliographies by topics / Lc-hrms

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Lc-hrms'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Lc-hrms"

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Katahira, Takehiro, Akio Kanazawa, Mai Shinohara, et al. "Postprandial Plasma Glucagon Kinetics in Type 2 Diabetes Mellitus: Comparison of Immunoassay and Mass Spectrometry." Journal of the Endocrine Society 3, no. 1 (2018): 42–51. http://dx.doi.org/10.1210/js.2018-00142.

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Abstract Context Accurate glucagon level measurements are necessary for investigation of mechanisms for postprandial hyperglycemia in type 2 diabetes. Objective To evaluate the accuracy of postprandial glucagon level measurements using a sandwich ELISA vs a recently established liquid chromatography-high resolution mass spectrometry (LC-HRMS) method in type 2 diabetes mellitus. Design and Participants Twenty patients with type 2 diabetes treated with insulin underwent a meal test before and after administration of the dipeptidyl peptidase-4 inhibitor anagliptin for 4 weeks. Blood samples were
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Sun, Yuchen, Shin-ichiro Nitta, Kosuke Saito, et al. "Development of a bioanalytical method for an antisense therapeutic using high-resolution mass spectrometry." Bioanalysis 12, no. 24 (2020): 1739–56. http://dx.doi.org/10.4155/bio-2020-0225.

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Background: Ion-pairing reverse-phase LC coupled with high-resolution mass spectrometry (IP-LC/HRMS) has gained attention in oligonucleotide therapeutic bioanalyses owing to its high sensitivity and selectivity. However, optimization and validation of IP-LC/HRMS-based methods are rare. The objective of this study is the development of a sensitive and reproducible IP-LC/HRMS-based bioanalytical method using clinically approved mipomersen as a model for antisense oligonucleotides. Materials & methods/results: Mipomersen was extracted from rat plasma using Clarity OTX SPE and quantified by IP
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Maldini, Mariateresa, Gilda D’Urso, Giordana Pagliuca, et al. "HPTLC-PCA Complementary to HRMS-PCA in the Case Study of Arbutus unedo Antioxidant Phenolic Profiling." Foods 8, no. 8 (2019): 294. http://dx.doi.org/10.3390/foods8080294.

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A comparison between High-Performance Thin-Layer Chromatography (HPTLC) analysis and Liquid Chromatography High Resolution Mass Spectrometry (LC–HRMS), coupled with Principal Component Analysis (PCA) was carried out by performing a combined metabolomics study to discriminate Arbutus unedo (A. unedo) plants. For a rapid digital record of A. unedo extracts (leaves, yellow fruit, and red fruit collected in La Maddalena and Sassari, Sardinia), HPTLC was used. Data were then analysed by PCA with the results of the ability of this technique to discriminate samples. Similarly, extracts were acquired
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Lefebvre, Donatien, Kevin Blanco-Valle, Jacques-Antoine Hennekinne, et al. "Multiplex Detection of 24 Staphylococcal Enterotoxins in Culture Supernatant Using Liquid Chromatography Coupled to High-Resolution Mass Spectrometry." Toxins 14, no. 4 (2022): 249. http://dx.doi.org/10.3390/toxins14040249.

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Staphylococcal food poisoning outbreaks are caused by the ingestion of food contaminated with staphylococcal enterotoxins (SEs). Among the 27 SEs described in the literature to date, only a few can be detected using immuno-enzymatic-based methods that are strongly dependent on the availability of antibodies. Liquid chromatography, coupled to high-resolution mass spectrometry (LC-HRMS), has, therefore, been put forward as a relevant complementary method, but only for the detection of a limited number of enterotoxins. In this work, LC-HRMS was developed for the detection and quantification of 24
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Kritmetapak, Kittrawee, Louis A. Losbanos, Jolaine M. Hines, et al. "Chemical Characterization and Quantification of Circulating Intact PTH and PTH Fragments by High-Resolution Mass Spectrometry in Chronic Renal Failure." Clinical Chemistry 67, no. 6 (2021): 843–53. http://dx.doi.org/10.1093/clinchem/hvab013.

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Abstract Background The precise concentrations of full-length parathyroid hormone (PTH1-84) and the identity and concentrations of PTH fragments in patients with various stages of chronic renal failure are unknown. Methods We developed a liquid chromatography-high resolution mass spectrometry (LC-HRMS) method to characterize and quantify PTH1-84 and PTH fragments in serum of 221 patients with progressive renal dysfunction. Following capture by matrix-bound amino-terminal or carboxyl-terminal region-specific antibodies and elution from matrix, PTH1-84 and PTH fragments were identified and quant
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Liu, Ju, Jing Li, Chris Tran, et al. "Oligonucleotide quantification and metabolite profiling by high-resolution and accurate mass spectrometry." Bioanalysis 11, no. 21 (2019): 1967–80. http://dx.doi.org/10.4155/bio-2019-0137.

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Aim: Advancements in RNA interference therapeutics have triggered development of improved bioanalytical methods for oligonucleotide metabolite profiling and high-throughput quantification in biological matrices. Results & methodology: HPLC coupled with high-resolution mass spectrometry (LC-HRMS) methods were developed to investigate the metabolism of a REVERSIR™ molecule in vivo. Plasma and tissue samples were extracted using solid-phase extraction followed by LC-HRMS analysis for metabolite profiling and quantification. The method was qualified from 10 to 5000 ng/ml (plasma) and 100 to 50
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Luo, Y. R., C. Yun, K. L. Lynch, and K. Comstock. "A High-Resolution Liquid Chromatography-Mass Spectrometry Method for Identification of Toxic Natural Products in Clinical Cases." American Journal of Clinical Pathology 154, Supplement_1 (2020): S128. http://dx.doi.org/10.1093/ajcp/aqaa161.280.

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Abstract Introduction/Objective Many natural products have biological effects on humans and animals. Poisoning caused by natural products is often found in clinical toxicology cases. Liquid chromatography-high-resolution-mass spectrometry (LC-HRMS) has recently emerged as a powerful analytical tool for large-scale target screening, and the application of LC-HRMS can be expanded to solve the clinical cases of natural product poisoning. Methods The LC-HRMS method is based on a spectral library of 121 natural products. The spectral library was constructed by analyzing standards either in a Q-TOF
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Chernonosov, Alexander, Liliya Aksenova, and Vladimir Koval. "The Development of a Liquid Chromatography High-Resolution Mass Spectrometric Method for Apixaban Quantification in Dried Plasma Spots in Parallel Reaction Monitoring Mode." Processes 9, no. 3 (2021): 450. http://dx.doi.org/10.3390/pr9030450.

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This work aimed at developing and validating a rapid, sensitive, and robust method of liquid chromatography with high-resolution mass spectrometry (LC–HRMS) in parallel reaction monitoring (PRM) mode for apixaban quantification in dried plasma spots (DPSs) with a simple extraction procedure. A 25 µL sample of human plasma was placed onto Whatman 903 Protein Saver Cards and allowed to dry; 3.2 mm diameter disks were cut out from DPSs using a puncher, and 100 µL of a working internal standard solution was added to each sample. After this, they were vortexed on a shaker for 15 min at 800 rpm and
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Wei, Cong, Louis S. Chupak, Thomas Philip, Benjamin M. Johnson, Robert Gentles, and Dieter M. Drexler. "Screening and Characterization of Reactive Compounds with In Vitro Peptide-Trapping and Liquid Chromatography/High-Resolution Accurate Mass Spectrometry." Journal of Biomolecular Screening 19, no. 2 (2013): 297–307. http://dx.doi.org/10.1177/1087057113492852.

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The present study describes a novel methodology for the detection of reactive compounds using in vitro peptide-trapping and liquid chromatography–high-resolution accurate mass spectrometry (LC-HRMS). Compounds that contain electrophilic groups can covalently bind to nucleophilic moieties in proteins and form adducts. Such adducts are thought to be associated with drug-mediated toxicity and therefore represent potential liabilities in drug discovery programs. In addition, reactive compounds identified in biological screening can be associated with data that can be misinterpreted if the reactive
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Kurniawati, Farida, Dona Fitria, Aan Risma Uli Nainggolan, and Puspita Ayu Wardani. "Identifikasi dan Karakterisasi Tanaman Kratom melalui Pendekatan Profil Kandungan Senyawa Penanda secara LC-HRMS QToF dan Penetapan Nilai Retention Index secara GCMS." Eruditio : Indonesia Journal of Food and Drug Safety 3, no. 1 (2023): 79–90. http://dx.doi.org/10.54384/eruditio.v3i1.141.

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Saat ini senyawa penanda yang diperlukan sulit diperoleh di peredaran karena termasuk senyawa dilarang di Indonesia. Penelitian ini dilakukan untuk mengembangkan alternatif metode tanpa baku pembanding dengan pendekatan profil kandungan senyawa penanda menggunakan spektrometer massa. Spektrometri massa dilakukan baik menggunakan gas kromatografi maupun liquid chromatography high resolution mass spectrometry (LC-HRMS). Kedua metode tersebut dikembangkan untuk uji konfirmasi identitas senyawa penanda pada tanaman kratom. Uji spektrometri massa dilakukan setelah senyawa penanda diekstraksi dari t
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Dissertations / Theses on the topic "Lc-hrms"

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GIACCONE, VITA. "Identificazione e quantificazione delle Micotossine prodotte da Alternaria in alimenti e mangimi, mediante LC-MS/MS e LC/HRMS." Doctoral thesis, Università degli studi di Modena e Reggio Emilia, 2022. http://hdl.handle.net/11380/1276559.

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Le micotossine sono contaminanti significativi negli alimenti e nei mangimi e sono causa di gravi effetti tossici sulla salute umana e animale. Diversi studi hanno dimostrato l’esistenza di una moltitudine di metaboliti fungini che contaminano alimenti e mangimi. Recentemente, le autorità sanitarie internazionali hanno espresso preoccupazione per la presenza di micotossine "emergenti" negli alimenti. Tra le specie fungine responsabili della produzione di tali metaboliti, la specie Alternaria ha la capacità di produrre più di 70 tossine, come Alternariol (AOH), Alternariol monomethyl ether (AME
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Bader, Tobias [Verfasser], and Klaus [Akademischer Betreuer] Kümmerer. "Mining of LC-HRMS data for the assessment of water treatment processes / Tobias Bader ; Betreuer: Klaus Kümmerer." Lüneburg : Universitätsbibliothek der Leuphana Universität Lüneburg, 2018. http://d-nb.info/1161941975/34.

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Brüggen, Susanne [Verfasser], and Oliver J. [Akademischer Betreuer] Schmitz. "Entwicklung eines flexiblen und modernen Screenings zur Gewässerüberwachung mittels LC-HRMS / Susanne Brüggen ; Betreuer: Oliver J. Schmitz." Duisburg, 2021. http://d-nb.info/123217596X/34.

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Aros, Sandrine. "Analyse métabolomique de S. aureus par chromatographie liquide couplée à la spectrométrie de masse à haute résolution : Développements analytiques et applications à l’étude de la résistance à la méticilline." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLS013.

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Le taux de mortalité associé aux infections par le S. aureus résistant à la méticilline (SARM) est le plus élevé parmi les infections staphylococciques. Le SARM est aussi la plus fréquente des bactéries multirésistantes, plaçant souvent le médecin en situation d'impasse thérapeutique. Une meilleure compréhension des phénomènes de résistance aux antibiotiques permettrait de mieux détecter ces bactéries et concevoir de nouveaux antibiotiques. Dans ce contexte, ces travaux de thèse visaient à étudier le phénotype de résistance à la méticilline de S. aureus par une approche métabolomique.La premiè
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Eckberg, Melanie N. "Forensic Toxicological Screening and Confirmation of 800+ Novel Psychoactive Substances by LC-QTOF-MS and 2D-LC Analysis." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3923.

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Novel psychoactive substances (NPS) represent a great challenge to toxicologists due to the ability of illicit drug manufacturers to alter NPS chemical structures quickly and with ease to circumvent legislation regulating their use. Each time a new structure is introduced, there is a possibility that it has not been previously recorded in law enforcement or scientific databases. Many toxicology laboratories use targeted analytical methods that rely on libraries of known compounds to identify drugs in samples. However, these libraries do not include large numbers of NPS which could result in no
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Loriau, Matthieu. "Recherche et identification des impuretés de l'acide amino-11-undécanoïque par couplage LC-UV-HRMS et GC-MS." Paris 6, 2009. http://www.theses.fr/2009PA066777.

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Bubanj, Stojiljkovic Natali. "Développement d'une approche métabolomique basée sur la LC-HRMS pour le dépistage des stéroïdes anabolisants dans l'urine équine." Paris 6, 2013. http://www.theses.fr/2013PA066057.

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La métabolomique est une approche émergente des technologies «omiques». Initialement, les études de métabolomique ont été menées dans les domaines de la médecine, des biotechnologies ou de la biologie des systèmes, mais récemment, son application s’est étendue à de nouveaux ressorts tels que le contrôle du dopage. L'objectif de notre étude est d'évaluer la pertinence d'une telle approche pour le dépistage des stéroïdes anabolisants chez le cheval, à travers le cas du stanozolol. Ce travail de thèse est orienté autour de 3 axes principaux : i) l’évaluation de la méthodologie en mettant l'accent
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Mézière, Marie. "Analytical strategy development for the analysis of chlorinated paraffins : Study of the fate of those contaminants of emerging concern in the laying hens and contribution of the evaluation of the human dietary exposure." Thesis, Nantes, Ecole nationale vétérinaire, 2020. http://www.theses.fr/2020ONIR146F.

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Les chloroparaffines (CP) sont des chaînes de n-alcanes polychlorées, utilisées en tant que plastifiants, retardateurs de flamme ou lubrifiants. Alors que leur ubiquité dans l’environnement a été démontrée par diverses études, l’évaluation du risque associé à l’exposition de l’homme à ces contaminants en Europe demeure très limitée. Le manque de données s’expliquant notamment par de nombreux défis analytiques, la présente thèse a été initiée pour développer une stratégie analytique innovante puis pour fournir des données nouvelles sur le comportement des CP le long de la chaîne alimentaire et
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Boudah, Samia. "Développement et application de méthodes de chromatographie liquide couplées à la spectrométrie de masse à haute résolution pour les analyses métabolomiques et lipidomiques de larges cohortes." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066281/document.

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Le profilage métabolomique global de matrices biologiques dans de larges séries d'échantillon est un enjeu majeur. Dans ce contexte, notre travail vise à développer des approches LC-HRMS et outils bioinformatiques pour les analyses métabolomique et lipidomique de larges cohortes. Dans un premier temps, nous avons développé puis évalué la pertinence de 4 méthodes LC-HRMS dans l'annotation du métabolome/lipidome sérique humain. Ainsi, une base de données spectrales a été implémentée à l'aide de spectres MS, MS/MS et les temps de rétention de composés de référence afin d'assurer l'annotation de j
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Hoang, Thi Phuong Thuy. "De l'analyse métabolomique par LC-HRMS de souches fongiques marines à la production, l'isolement et l'hémisynthèse de produits naturels bioactifs." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4043/document.

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Un des axes de recherche porté par le laboratoire Mer-Molécules-Santé de l’Université de Nantes consiste en l’étude de la chimiodiversité des métabolites produits par des souches fongiques marines pour la mise en évidence de composés potentiellement valorisables en thérapeutique. Les travaux réalisés lors de cette thèse ont porté sur deux souches fongiques marines. L’étude du métabolome d’une souche de l’espèce Penicillium ubiquetum en couplant approche OSMAC et étude métabolomique par analyses LC-HRMS/MS a mis en évidence le milieu CYA-EDM comme induisant particulièrement la production de mét
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Book chapters on the topic "Lc-hrms"

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Melanson, Jeremy E., and Shawna L. MacKinnon. "Characterization of Phlorotannins from Brown Algae by LC-HRMS." In Methods in Molecular Biology. Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-2684-8_16.

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Seiwert, Bettina, Cindy Weidauer, Kristin Hirte, and Thorsten Reemtsma. "Lab-Based Approaches To Support the Screening and Identification of Transformation Products by LC-HRMS." In ACS Symposium Series. American Chemical Society, 2016. http://dx.doi.org/10.1021/bk-2016-1241.ch005.

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Schollée, Jennifer E., Emma L. Schymanski, and Juliane Hollender. "Statistical Approaches for LC-HRMS Data To Characterize, Prioritize, and Identify Transformation Products from Water Treatment Processes." In ACS Symposium Series. American Chemical Society, 2016. http://dx.doi.org/10.1021/bk-2016-1241.ch004.

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Bader, Tobias, Wolfgang Schulz, Thomas Lucke, Wolfram Seitz, and Rudi Winzenbacher. "Application of Non-Target Analysis with LC-HRMS for the Monitoring of Raw and Potable Water: Strategy and Results." In ACS Symposium Series. American Chemical Society, 2016. http://dx.doi.org/10.1021/bk-2016-1242.ch003.

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Sancho, Juan V., and María Ibáñez. "Multiresidue Analysis of Pesticides: LC–MS/MS versus LC–HRMS." In Fast Liquid Chromatography–Mass Spectrometry Methods in Food and Environmental Analysis. IMPERIAL COLLEGE PRESS, 2015. http://dx.doi.org/10.1142/9781783264940_0010.

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Arroyo-Manzanares, Natalia, Natalia Campillo, Ignacio López-García, and Pilar Viñas. "Determination of Aflatoxins by Liquid Chromatography Coupled to High-Resolution Mass Spectrometry." In Aflatoxins [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96790.

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The most common mycotoxins are aflatoxins (AFs), which are produced by strains of various species of molds in the genus Aspergillus (A. flavus, A. parasiticus, A. nomius and A. tamarii) and can grow on many foods, mainly peanuts, maize and cottonseed. AFs are currently considered to be the most hazardous mycotoxins to health, in particular because of their hepatocellular carcinogenic potential. The main aflatoxins are B1 (AFB1), B2 (AFB2), G1 (AFG1) and G2 (AFG2) although many other derivatives have been described. In addition, animals consuming contaminated feeds are able to metabolize them by hydroxylation in a certain position, yield for example aflatoxin M1 (AFM1) and aflatoxin M2 (AFM2) from AFB1 and AFB2, respectively. Nowadays, only the four main AFs and one hydroxylated metabolite (AFM1) are routinely analyzed. High resolution mass spectrometry (HRMS) using Orbitrap or time-of-flight (TOF) mass analysers is a trend for AFs determination, allowing to determine AFs and their derivatives for which there are no commercial standards available, in order to carry out metabolization studies, exposure assessment or monitoring modified AFs in food. The aim of this study is to show the recent trends in analytical methods based on LC-HRMS for determination of AFs.
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Amaral, Ana Claudia F., Aline de S. Ramos, José Luiz P. Ferreira, et al. "LC‐HRMS for the Identification of β‐Carboline and Canthinone Alkaloids Isolated from Natural Sources." In Mass Spectrometry. InTech, 2017. http://dx.doi.org/10.5772/68075.

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Gago-Ferrero, P., E. L. Schymanski, J. Hollender, and N. S. Thomaidis. "Nontarget Analysis of Environmental Samples Based on Liquid Chromatography Coupled to High Resolution Mass Spectrometry (LC-HRMS)." In Applications of Time-of-Flight and Orbitrap Mass Spectrometry in Environmental, Food, Doping, and Forensic Analysis. Elsevier, 2016. http://dx.doi.org/10.1016/bs.coac.2016.01.012.

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Conference papers on the topic "Lc-hrms"

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Papachristodoulou, A., G. B. Lemus Ringele, S. Beteinakis, P. Gkiouvetidis, and M. Halabalaki. "LC-HRMS based metabolite profiling for quality control of Greek honey via bioinformatic tools." In GA – 70th Annual Meeting 2022. Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1759041.

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McGrath, Thomas, Adrian Covaci, Els Van Hoeck, et al. "Gas chromatography-mass spectrometry (GC-MS) and liquid chromatography-high resolution mass spectrometry (LC-HRMS) approaches for analysis of chlorinated paraffins in edible fats and oils." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/wycg9726.

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Chlorinated paraffins (CPs) are high production volume chemicals composed of complex mixtures of thousands of compounds that have been applied widely as flame retardants and plasticizers. CPs have demonstrated toxic and bioaccumulative properties, while evidence suggests dietary intake to constitute a major pathway for human exposure. This study reports on the optimization and validation of an analytical method for the quantification of short- and medium-chained CPs (SCCPs and MCCPs, respectively) using gas chromatography-mass spectrometry (GC-MS) in fats and oils, and the development of liqui
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Lemus Ringele, GB, E. Axiotis, S. Katsikis, A. Argyropoulou, LA Skaltsounis, and M. Halabalaki. "Investigation of Greek honeys using HR-NMR and LC-HRMS metabolomics, for determination of their geographical, botanical origin and authenticity." In 67th International Congress and Annual Meeting of the Society for Medicinal Plant and Natural Product Research (GA) in cooperation with the French Society of Pharmacognosy AFERP. © Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-3399834.

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Nagy, Kornel, Karine Redeuil, Marine Nicolas, and Xanthippe Theurillat. "Mitigation of MCPD in physically refined palm oil." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/ogej8369.

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This talk will discuss synergistic opportunities between the effects of recently explored MCPD mitigation concepts in palm oil and sunflower oil. The discussed laboratory concepts will include dry versus wet removal of residual sediments, various degumming conditions and the role the bleaching clay in mitigating or catalyzing the formation of MCPD. The effects of the discussed mitigation concepts were studied by integrating them into the physical refining of crude oil, including water-based degumming and sealed ampoule tests mimicking the thermal conditions of edible oil deodorization. Key exp
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Beteinakis, S., P. Stathopoulos, D. Michailidis, et al. "Comparative quantitative and qualitative studies of extra virgin olive oil using HPTLC, HPLC-DAD, NMR, LC-HRMS & MS/MS methods." In GA 2017 – Book of Abstracts. Georg Thieme Verlag KG, 2017. http://dx.doi.org/10.1055/s-0037-1608520.

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Klassen, M., L. Reinders, T. Teutenberg, and J. Tuerk. "5PSQ-057 Development of an analysis method to assess the occupational risk dealing with therapeutic monoclonal antibodies using liquid chromatography and high-resolution mass spectrometry (lc-hrms)." In Abstract Book, 23rd EAHP Congress, 21st–23rd March 2018, Gothenburg, Sweden. British Medical Journal Publishing Group, 2018. http://dx.doi.org/10.1136/ejhpharm-2018-eahpconf.411.

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Reports on the topic "Lc-hrms"

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Mayer, B., A. Williams, R. Leif, R. Udey, and A. Vu. Extraction of Sulfur Mustard Metabolites from Urine Samples and Analysis by Liquid Chromatography-High-Resolution Mass Spectrometry (LC-HRMS). Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1165796.

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Udey, R., T. Corzett, and A. Williams. Extraction of Butyrylcholinesterase (BuChE) and Organophosphorus Nerve Agent (OPNA)-BChE Adducts from Blood and Plasma Samples and Analysis by Liquid Chromatography-High-Resolution Mass Spectrometry (LC-HRMS). Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1149044.

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