Gotowe bibliografie tematyczne / LC-MS Analysis of W

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  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
  6. Raporty organizacyjne

Gotowa bibliografia na temat „LC-MS Analysis of W”

Autor: Grafiati
Data publikacji: 3 czerwca 2025
Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "LC-MS Analysis of W"

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Wang, Liqun, Stephen Stanfill, Liza Valentin-Blasini, Clifford H. Watson, and Roberto Bravo Cardenas. "LC-MS/MS Analysis of Sugars, Alditols, and Humectants in Smokeless Tobacco Products." Beiträge zur Tabakforschung International/Contributions to Tobacco Research 28, no. 5 (2019): 203–13. http://dx.doi.org/10.2478/cttr-2019-0001.

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SummaryGlobally, smokeless tobacco (ST) includes a wide array of chemically diverse products generally used in the oral cavity. Although ST has been widely investigated, this study was undertaken to determine the levels of sugars (mono- and di-saccharides), alditols, and humectants present in major ST categories/subcategories by using high performance liquid chromatography coupled with a triple quadrupole mass spectrometer (HPLC-MS/MS). The products studied included chewing tobacco (loose leaf, plug, twist), US moist snuff, Swedish snus, creamy snuff, dry snuff, dissolvable tobacco products, a
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Dewi, Kifayati Rosiyanti, Feri Kusnandar, Nancy Dewi Yuliana, et al. "Application of LC-MS/MS Coupled with Various Digestion Methods for the Identification of Porcine Gelatin Markers in Confectionery Matrices." Indonesian Journal of Halal Research 5, no. 2 (2023): 53–66. http://dx.doi.org/10.15575/ijhar.v5i2.21191.

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Gelatin is a high-risk ingredient in terms of its halal status. Liquid chromatography combined with mass spectrometry (LC-MS/MS) was used to identify the source of gelatin based on marker peptides and proved to deliver higher reliability than other methods. However, the digestion method is essential before LC-MS/MS analysis. This research evaluated different digestion methods against selected porcine gelatin marker peptides and assessed LC-MS/MS sensitivity through adulteration experiments in various mixed matrices. The study involved three digestion methods (conventional, microwave, and ultra
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Rathmann, Daniel, Eddy Rijntjes, Julika Lietzow, and Josef Köhrle. "Quantitative Analysis of Thyroid Hormone Metabolites in Cell Culture Samples Using LC-MS/MS." European Thyroid Journal 4, Suppl. 1 (2015): 51–58. http://dx.doi.org/10.1159/000430840.

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A liquid-liquid extraction and liquid chromatography-electrospray ionization tandem mass spectrometry (LC-MS/MS) method to determine iodothyronines and thyronamines (TAM) from cell culture media was developed. Thyroid hormones (TH) are metabolized by sequential deiodination to eventually yield thyronine (T₀), but can also be decarboxylated, resulting in TAM. The method presented here for extraction of DMEM/F12 cell culture media is a fundamental procedure for a precise determination of 9 TH and 6 TAM from a single LC run. Analytes and internal standards (IS) were extracted from DMEM/F12 (w/o p
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Zhang, Mi, Kouharu Otsuki, Reo Takahashi, et al. "Identification of Daphnane Diterpenoids from Wikstroemia indica Using Liquid Chromatography with Tandem Mass Spectrometry." Plants 12, no. 20 (2023): 3620. http://dx.doi.org/10.3390/plants12203620.

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Liquid chromatography coupled with tandem mass spectrometry (LC-MS/MS) has emerged as a powerful tool for the rapid identification of compounds within natural resources. Daphnane diterpenoids, a class of natural compounds predominantly found in plants belonging to the Thymelaeaceae and Euphorbiaceae families, have attracted much attention due to their remarkable anticancer and anti-HIV activities. In the present study, the presence of daphnane diterpenoids in Wikstroemia indica, a plant belonging to the Thymelaeaceae family, was investigated by LC-MS/MS analysis. As a result, 21 daphnane diter
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Stahl-Zeng, Jianru, Ashley Sage, Philip Taylor, Jeremy Dietrich Netto, and Tuo Zhang. "Advances in LC–MS/MS Methods for Allergen Testing, Meat Speciation, and Gelatin Speciation." Journal of AOAC INTERNATIONAL 102, no. 5 (2019): 1309–15. http://dx.doi.org/10.1093/jaoac/102.5.1309.

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Abstract Background: Food authenticity is demanded by the consumer at all times. The consumer places trust in the manufacturer that the food product is genuine in terms of what is recorded on the packaging label. Objective: Recent advancements in LC–tandem MS methodology in the detection of allergens, meat, and gelatin speciation in raw food products and processed foods are detailed in this paper. Method: For each of the three methods, initial proteome analysis and the screening leading to the determination of unique tryptic peptides were conducted using a high-resolution, accurate tandem mass
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Ogawa, Tadashi, Kei Zaitsu, Tetsuo Kokaji, et al. "Development and application of a forensic toxicological library for identification of 56 natural toxic substances by liquid chromatography–quadrupole time-of-flight mass spectrometry." Forensic Toxicology 38, no. 1 (2019): 232–42. http://dx.doi.org/10.1007/s11419-019-00506-w.

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Abstract Purpose The present study aims to develop a forensic toxicological library to identify 56 natural toxic substances by liquid chromatography–quadrupole time-of-flight tandem mass spectrometry (LC–QTOF-MS/MS). Methods For setting up the library of product ion spectra, individual substances (31 plant toxins, 7 mushroom toxins, 5 marine toxins, 5 frog venoms, 4 mycotoxins, and 4 substances derived from plants) were analyzed by LC–QTOF-MS/MS with positive and negative ionization. The product ion spectra were acquired at the collision energies (CEs) of 20, 35, and 50 eV in single enhanced p
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Bandar, Ivo Sah, He Sarina Yang, Alex Rai, et al. "Comparison of five tacrolimus measurement methods underscore the need for a standardized method to improve clinical outcomes." American Journal of Clinical Pathology 162, Supplement_1 (2024): S181. http://dx.doi.org/10.1093/ajcp/aqae129.397.

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Abstract Tacrolimus is a widely used drug to prevent post-transplantation organ rejection by suppressing host immune response. While its efficacy is well established, tacrolimus is also known for narrow therapeutic index and debilitating adverse effects, rendering accurate measurement for therapeutic drug monitoring essential, to minimize drug toxicity and graft loss, and maximize organ rejection prevention. Tacrolimus can be quantitated by immunoassay (IA) and liquid chromatography-tandem mass spectrometry (LC-MS/MS). However, previous pairwise studies showed significant inter-assay variabili
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Reinicke, Madlen, Juliane Dorow, Karoline Bischof, Judith Leyh, Ingo Bechmann, and Uta Ceglarek. "Tissue pretreatment for LC–MS/MS analysis of PUFA and eicosanoid distribution in mouse brain and liver." Analytical and Bioanalytical Chemistry 412, no. 10 (2019): 2211–23. http://dx.doi.org/10.1007/s00216-019-02170-w.

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AbstractPolyunsaturated fatty acids (PUFAs) and eicosanoids are important mediators of inflammation. The functional role of eicosanoids in metabolic-syndrome-related diseases has been extensively studied. However, their role in neuroinflammation and the development of neurodegenerative diseases is still unclear. The aim of this study was the development of a sample pretreatment protocol for the simultaneous analysis of PUFAs and eicosanoids in mouse liver and brain. Liver and brain samples of male wild-type C57BL/6J mice (11–122 mg) were used to investigate conditions for tissue rinsing, homog
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Khvostov, Daniil, Natalya Vostrikova, and Irina Chernukha. "Comparison of heat-stable peptides using a multiple-reaction monitoring method to identify beef muscle tissue." Potravinarstvo Slovak Journal of Food Sciences 14 (March 28, 2020): 149–55. http://dx.doi.org/10.5219/1317.

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Nowadays, proteomics is widely used as an analytical control method. A new method for determining animal tissue species-specificity based on a combination of two effective methods of food analysis, liquid chromatography (LC) and mass spectrometry (MS), was used in this work. Using this approach, it became possible to detect peptides. This work presents a comparison of species-specific, heat-stable peptides for the identification of beef. The objects of the study were native and boiled model mixtures containing beef with concentrations of 8% (w/w) and 16% (w/w). Pork was also added to the recip
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Qingping, Hu, Gao Xiaoli, and Wang Yan. "Metabolomics analysis of carotenoid production from Proteiniphilum acetatigenes PSB-W based on LC-MS." African Journal of Microbiology Research 14, no. 8 (2020): 410–19. http://dx.doi.org/10.5897/ajmr2020.9272.

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Rozprawy doktorskie na temat "LC-MS Analysis of W"

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Harder, Ulrike. "Amino acid analysis in biofluids using LC-MS/MS." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-166180.

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Klinische Studien zeigen, dass die Zusammensetzung von zirkulierenden, freien AS im Blut, ein Marker für monogene und multigenetische Krankheiten ist. Die Analyse von hohen Probandenzahlen in klinischen Studien wird oftmals durch aufwendige und lange Probenaufarbeitungsschritte begrenzt. Im Rahmen der Metabolomics Plattform, die im Dr. von Haunerschen Kinderspitals etabliert wurde, wurde eine Hochdurchsatzmethode entwickelt, die eine selektive, sensitive, präzise und robuste Quantifizierung von 22 AS aus kleinen Probenvolumina ermöglicht. Im Laufe der Zeit konnten noch weitere Aminosäuren zur
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Couchman, Lewis. "LC-MS/MS analysis of buprenorphine and norbuprenorphine in urine." Thesis, Queen Mary, University of London, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511397.

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Zhou, Bin. "Computational Analysis of LC-MS/MS Data for Metabolite Identification." Thesis, Virginia Tech, 2011. http://hdl.handle.net/10919/36109.

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Metabolomics aims at the detection and quantitation of metabolites within a biological system. As the most direct representation of phenotypic changes, metabolomics is an important component in system biology research. Recent development on high-resolution, high-accuracy mass spectrometers enables the simultaneous study of hundreds or even thousands of metabolites in one experiment. Liquid chromatography-mass spectrometry (LC-MS) is a commonly used instrument for metabolomic studies due to its high sensitivity and broad coverage of metabolome. However, the identification of metabolites remains
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Bui, Thinh Quang. "ANALYSIS OFMERCURY THIOL COMPLEXESBY LC ICP-MS." Thesis, Umeå universitet, Kemiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-163383.

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Li, Huawen. "Quantitative Analysis of Bleomycin in Rat Plasma by LC-MS/MS." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1528851820162444.

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Silcocks, S. E. "Component analysis of natural products by Lc, Lc-Api-Ms, and Lc-Api-MSN techniques." Thesis, Swansea University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639034.

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Natural products provide a wide and virtually inexhaustible source of novel, useful, and often hard to synthesise compounds. However, due to the origin of these products, the matrices tend to be complex, and individual components are difficult to isolate and conclusively identify. The majority of this thesis focuses on the separation, identification, and quantification of certain species inherent within natural product samples. Liquid chromatography atmospheric pressure ionisation mass spectrometry techniques were utilised for this research. Chapter One provides a brief history and introductio
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Utami, Wahyu. "Ion pairing LC-MS/MS method for analysis of intracellular phosphorylated metabolites." Thesis, University of Nottingham, 2015. http://eprints.nottingham.ac.uk/30566/.

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Nucleoside analogues have been extensively used in medication. The nucleoside analogue cordycepin is the principal bioactive compound found in the caterpillar fungi (Cordyceps and Ophiocordyceps). It has been shown to have biological activity, including anti-inflammatory, immunomodulatory and anti-proliferative activity in many kinds of malignant cells. Intracellular drug interactions at the nucleotide level can be explained by understanding the intracellular metabolism of nucleoside analogues as well as their plasma metabolism since their efficacy of therapy or toxicity does not associate wit
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Kirk, John Daniel. "Particle beam LC/MS with fast atom bombardment." Thesis, Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/27127.

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Yacoub, Kimberly. "Development of ESI-LC-MS Method for Drug Analysis." Cleveland State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=csu1524040258129489.

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Bianchi, Michele. "LC-MS applications in Pharmaceutical Analysis, Bioanalysis and Proteomics." Doctoral thesis, Università del Piemonte Orientale, 2019. http://hdl.handle.net/11579/102458.

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Liquid Chromatography tandem Mass Spectrometry (LC-MS) is a powerful tool available to scientists with multidisciplinary applications. In this thesis, LC-MS technique had a key role to perform exciting experiments giving back an outstanding contribute to each project caught up. Different LC-MS instruments were involved. We worked with HPLC and UHPLC systems operating with micro- or nano-flow rates. At the same time, various MS analyzers working in different scan modes (full MS, MS2, MS3, SRM, MRM and DDA) were chosen depending by the expected results. The projects addressed by this thesis were
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Książki na temat "LC-MS Analysis of W"

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Langman, Loralie J., and Christine L. H. Snozek, eds. LC-MS in Drug Analysis. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-934-1.

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Langman, Loralie J., and Christine L. H. Snozek, eds. LC-MS in Drug Analysis. Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-8823-5.

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Letzel, Thomas, ed. Protein and Peptide Analysis by LC-MS. Royal Society of Chemistry, 2011. http://dx.doi.org/10.1039/9781849733144.

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International, Strategic Directions, ed. The Future of HPLC!: Including IC, LC-MS, FIA, and Micro-LC. Strategic Directions International, 1990.

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Cremin, Peter A. A phytochemical investigation and liquid chromatography-mass spectrometry (LC-MS) analysis of eight Armillaria species. University College Dublin, 1996.

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LC-MS/MS Method for Mycotoxin Analysis. MDPI, 2017. http://dx.doi.org/10.3390/books978-3-03842-607-3.

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Xu, Q. Alan, and Timothy L. Madden. LC-MS in Drug Bioanalysis. Springer, 2014.

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Xu, Q. Alan, and Timothy L. Madden. LC-MS in Drug Bioanalysis. Springer, 2012.

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A novel method for the determination of sildenafil (Viagra) and its metabolite (UK-103,320) in postmortem specimens using LC/MS/MS and LC/MS/MS/MS: Final report. U.S. Dept. of Transportation, Federal Aviation Administration, Office of Aviation Medicine, 2000.

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Desiderio, Dominic M., Nico M. Nibbering, and Mike S. Lee. LC/MS Applications in Drug Development. Wiley & Sons, Incorporated, John, 2003.

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Części książek na temat "LC-MS Analysis of W"

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Eswar, Deepthi. "LC-MS and LC-MS/MS Analysis of Food Spices." In Analysis of Food Spices. CRC Press, 2023. http://dx.doi.org/10.1201/9781003279792-14.

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Want, Elizabeth J. "LC-MS Untargeted Analysis." In Methods in Molecular Biology. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7643-0_7.

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Matthiesen, Rune. "LC-MS Spectra Processing." In Mass Spectrometry Data Analysis in Proteomics. Springer New York, 2019. http://dx.doi.org/10.1007/978-1-4939-9744-2_2.

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Matthiesen, Rune. "LC-MS Spectra Processing." In Mass Spectrometry Data Analysis in Proteomics. Humana Press, 2013. http://dx.doi.org/10.1007/978-1-62703-392-3_2.

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Krautbauer, Sabrina, and Gerhard Liebisch. "LC-MS/MS Analysis of Bile Acids." In Methods in Molecular Biology. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-7592-1_8.

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Garby, David M., and Lynn A. Cheryk. "Synthetic Opioid Analysis by LC-MS/MS." In Methods in Molecular Biology. Humana Press, 2012. http://dx.doi.org/10.1007/978-1-61779-934-1_6.

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Häkkinen, Merja R. "Polyamine Analysis by LC-MS." In Methods in Molecular Biology. Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-034-8_33.

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Schröder, H. Fr. "LC-MS in Environmental Analysis." In Handbook of Spectroscopy. Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527602305.ch15.

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Bourcier, Sophie, and Michel Sablier. "LC-MS in Environmental Analysis." In Handbook of Spectroscopy. Wiley-VCH Verlag GmbH & Co. KGaA, 2014. http://dx.doi.org/10.1002/9783527654703.ch34.

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Lam, Herman. "LC-MS for Pharmaceutical Analysis." In Therapeutic Delivery Solutions. John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118903681.ch11.

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Streszczenia konferencji na temat "LC-MS Analysis of W"

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Marschnigg, Stefan, Christopher Herzig, Andreas Limbeck, et al. "Analysis Of The Binder Element Content In The W Phase Of Tungsten Heavy Alloys." In Euro Powder Metallurgy 2023 Congress & Exhibition. EPMA, 2023. http://dx.doi.org/10.59499/ep235755779.

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Tungsten heavy alloys are liquid phase sintered two-phase materials in which tungsten grains are embedded in an austenitic base matrix. While the solubility of W in the binder phase is high both at sintering temperature, when the binder phase is liquid, and also after cooling, the solubility of the binder elements in the W phase is very low, but the exact content has been a matter of discussion for a long time. In the present study, laser ablation induction coupled plasma mass spectrometry (LA-ICP-MS) has been employed for analyzing the Ni and Fe content in the W phase of W-Ni-Fe heavy alloys,
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King, Tony, Freeman Ralph, Mark Fuglem, et al. "Ice Risk Analysis for Floating Wind Turbines, Offshore Newfoundland and Labrador." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31716-ms.

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Abstract The move to reduce greenhouse gas emissions in the offshore hydrocarbons production industry has resulted in a growing interest in the possibility of using offshore wind to reduce on-platform power generation. While some offshore areas are progressing towards or planning for the use of offshore wind to electrify hydrocarbon producing platforms, they do not have the challenges associated with Newfoundland & Labrador's offshore environment.This region is prone to incursions by icebergs and pack ice, which would present a risk to offshore wind turbines. Analysis approachesto assess t
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King, Tony, Freeman Ralph, Mark Fuglem, et al. "Ice Risk Analysis for Floating Wind Turbines, Offshore Newfoundland and Labrador." In Offshore Technology Conference. OTC, 2022. http://dx.doi.org/10.4043/31716-ms.

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Abstract The move to reduce greenhouse gas emissions in the offshore hydrocarbons production industry has resulted in a growing interest in the possibility of using offshore wind to reduce on-platform power generation. While some offshore areas are progressing towards or planning for the use of offshore wind to electrify hydrocarbon producing platforms, they do not have the challenges associated with Newfoundland & Labrador's offshore environment.This region is prone to incursions by icebergs and pack ice, which would present a risk to offshore wind turbines. Analysis approachesto assess t
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Fadipe, O. A., A. Vantala, M. H. Saleh, et al. "The Role of Geomechanics in Hydrocarbon Column Height Estimation. A Southeast Abu Dhabi Case Study." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222553-ms.

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Abstract The capacity of any seal to retain hydrocarbons in a trap depends on various factors, including the geometry, rock stress and deformation history of the seal. Geomechanical modelling can help to further understand, derisk and confirm seal integrity. Core is rarely cut in seals, which poses evaluation challenges, especially with the increasing need to focus on complex traps in mature basins. This paper presents the integrated results of using Lower Cretaceous seal elastic properties in estimating column height. The workflow involves throw estimation and fault trend classification from
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Dekić, Milan S., and Amina M. Gusinac. "THE AUTOLYSIS PRODUCTS OF GLUCOSINOLATES IN „LEPIDIUM CAMPESTRE“ (L.) W. T. AITON (BRASSICACEAE)." In 1st INTERNATIONAL Conference on Chemo and BioInformatics. Institute for Information Technologies, University of Kragujevac, 2021. http://dx.doi.org/10.46793/iccbi21.367d.

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Plant samples of Lepidium campestre (L.) W. T. Aiton (pepperwort) were analyzed in detail by GC and GC-MS. The analysis of the autolysates obtained from inflorescences, stems, leaves, and underground parts and the essential oil obtained by hydrodistillation allowed the identification of a series of glucosinolate degradation products, mainly isothiocyanates and nitriles. Besides previously identified ones in this species, the analyses resulted in the identification of degradation metabolites identified in pepperwort for the first time, and suggested the presence of heptyl glucosinolate, 3- phen
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Unnikrishnan, Vikram, and Guruswami Navin. "Successful Intervention in U and W Shaped Wells in Eagleford Basin – A Case History." In SPE/ICoTA Well Intervention Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/218324-ms.

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Abstract An operator in Eagleford basin, decided to optimize production, by minimizing drilling efforts. This led to two wells drilled in a distinctive "U" and "W" shape, which would result in equivalent treatable laterals lengths in a lease with tight boundaries. Plug and Perf stimulation technique was carried out in these two wells and post stimulation cleanout had to be performed. Intervention in these unique shaped wells need to be planned with the proper Bottomhole Assembly (BHA) configurations to ensure that that no misrun occurs. Though these wells are drilled successfully with the rig,
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Hamady, Abdelrafae El, Amr Gharieb, Alberto Diaz, Kirill Bogachev, and Dmitry Eydinov. "Advanced Reservoir Permeability Distribution Prediction: A Discrete Cosine Transform-Based History Matching Workflow." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/222492-ms.

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Abstract Reliable reservoir simulation is essential for effective reservoir management in the petroleum industry, as it enables engineers to make well-informed decisions on production strategies and resource allocation. However, accurately calibrating reservoir models to match observed field data remains a significant challenge. This difficulty primarily arises from the inherent uncertainties in key parameters such as permeability and porosity, which are crucial for predicting reservoir behavior and performance. Traditional history matching methods, which involve adjusting reservoir parameters
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Kongzhi, Huang, Chen Xin, Song Jiawen, et al. "Subtle Faults Characterization Based on Fault Simulation and AI OBN Seismic Attributes Optimization." In ADIPEC. SPE, 2024. http://dx.doi.org/10.2118/223034-ms.

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Abstract Subtle faults are often below seismic resolution, especially in strike slip regimes, it is very difficult to identify them as they have small throw and the seismic attributes do not change significantly across the fault. However, faulting often have an impact in fluid propagation leading to compartmentation. To improve the prediction accuracy of subtle faults, a new AI subtle faults characterization method based on OBN seismic attributes and fault physical simulation was proposed. This method includes 5 steps. 1) Integrated regional stress surveys and seismic AI subtle faults predicti
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Ahmadi, Seyedeh Hannaneh, Boxin Ding, Steven L. Bryant, and Apostolos Kantzas. "Synthesis and Characterization of Magnetic Nanodroplets for Flowback Analysis in Fractured Reservoirs." In SPE Canadian Energy Technology Conference and Exhibition. SPE, 2023. http://dx.doi.org/10.2118/212722-ms.

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Abstract Hydraulic fracturing has facilitated the rapid development of tight reservoirs throughout the world in the past decades. A common challenge arising from multistage hydraulic fracturing is the accurate characterization of the complexity and conductivity of the fracture networks, for optimizing the well performance as well as the subsequent production. Prevalent operations carried out on hydraulically fractured wells are tracer injections along with the fracturing fluid and flowback analysis, which are indispensable to condition the well for long-term performance and decrease the operat
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Cote, M., S. Lelièvre, M. Levesque, P. Galarneau, and V. Gelfandbein. "Poly(vinylidene fluoride trifluoroethylene) ceramics composites for IR detection." In OSA Annual Meeting. Optica Publishing Group, 1990. http://dx.doi.org/10.1364/oam.1990.thy37.

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There has been growing interest in the use of polymer pyroelectrics for IR detection. Vinylidenefluoride-trifluoroethylene (VDF/TrFE) copolymer is flexible, crystallizes naturally into a polar β form, and can be rendered pyroelectric without being stretched. We have developed a series of composite materials based on poly(VDF/TrFE):(70/30) containing different concentrations of the ceramics: BaTiO3, PbZrO3, LiTaO3, and PbTiO3. Infrared detectors were fabricated by direct deposition of the composite thin films (2–75µm thick) onto substrates preconnected to the readout electronics. Dielectric pro
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Raporty organizacyjne na temat "LC-MS Analysis of W"

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Moores, Lee, Ashley Kimble, Garrett George, et al. Optimization of LC-MS/MS parameters for analysis of per- and polyfluoroalkyl substances (PFAS). Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/38237.

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Kimble, Ashley, Derek Muensterman, Liliana Cahuas, et al. Extraction and analysis of per- and polyfluoroalkyl Substances (PFAS) from Meals Ready-to-Eat (MRE) films using GC-MS and LC-MS/MS. Engineer Research and Development Center (U.S.), 2023. http://dx.doi.org/10.21079/11681/47114.

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This work was in response to the Defense Logistic Agency’s (DLA) Subsistence Network Broad Agency Announcement, BAA-0003-16 addressing 2019 NDAA Section 329 that states packaging materials used for Meals Ready-to-Eat (MRE) that contact food products must be free of per- and polyfluoroalkyl substances (PFAS). This was addressed by determining the presence or absence of PFAS on MREs by extraction followed by gas chromatography mass spectrometry (GC-MS) and liquid chromatography tandem mass spectrometry (LC-MS/MS). Any samples positive for PFAS were quantitated using LC triple quadrupole (QqQ) MS
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Lehotay, Steven J., and Aviv Amirav. Fast, practical, and effective approach for the analysis of hazardous chemicals in the food supply. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7695587.bard.

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Background to the topic: For food safety and security reasons, hundreds of pesticides, veterinary drugs, and environmental pollutants should be monitored in the food supply, but current methods are too time-consuming, laborious, and expensive. As a result, only a tiny fraction of the food is tested for a limited number of contaminants. Original proposal objectives: Our main original goal was to develop fast, practical, and effective new approaches for the analysis of hazardous chemicals in the food supply. We proposed to extend the QuEChERS approach to more pesticides, veterinary drugs and pol
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Desai, Meera Jay. Development of Chiral LC-MS Methods for small Molecules and Their Applications in the Analysis of Enantiomeric Composition and Pharmacokinetic Studies. Office of Scientific and Technical Information (OSTI), 2004. http://dx.doi.org/10.2172/837266.

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Thongtan, Thananya, Poonlarp Cheepsunthorn, and Kiat Ruxrungtham. An analysis and studies expression of receptor molecule on microglia cells to inhibits infection of the cells from Japanese encephalitis virus : Research report (Year 2009). Chulalongkorn University, 2009. https://doi.org/10.58837/chula.res.2009.14.

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Japanese encephalitis virus (JEV), a mosquito-borne flavivirus, is a major cause of viral encephalitis in Asia. Even though the principle target cells for JEV in the central nervous system are neurons, the microglia is activated in response to JEV infection. This research aimed to investigate the relationship between JEV and microglial cells. The percentage of JEV infectivity in mouse microglial (BV-2) cell line at 8, 15 and 24 hr post infection was determined by flow cytometry. It was found that the percentage of infected cells were approximately 53.5, 71.3 and 83.6 respectively. The JEV bind
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Williams, A., and A. Vu. Extraction of O-isobutyl S-(2-diethylaminoethyl)methyl phosphothioate (Russian VX) and related chemical signatures from liquid eggs and analysis by Liquid Chromatography with Detection by Mass Spectrometry (LC-MS) and Gas Chromatography with Detection by. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1078542.

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Williams, A., and A. Vu. Extraction of O-isobutyl S-(2-diethylaminoethyl)methyl phosphothioate (Russian VX) and related chemical signatures from hot dogs and analysis by Liquid Chromatography with Detection by Mass Spectrometry (LC-MS) and Gas Chromatography with Detection by Mas. Office of Scientific and Technical Information (OSTI), 2012. http://dx.doi.org/10.2172/1090025.

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Cheepsunthorn, Poonlarp, and Yong Poovorawan. Identification of receptors for H5N1 virus on human nerve cells using protromics-based approaches. Chulalongkorn University, 2013. https://doi.org/10.58837/chula.res.2013.12.

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In this study, we investigated neuroinfectious capacity of H5N1 (A/Thailand/NK165/2005) isolated from plasma of infected individual during the third wave of Thailand outbreaks using human neuroblastoma SH-SY5Y cells. This was due to lack of information regarding neuroinfectivity of this variant. Results demonstrated that H5N1/NK165 induced servere CPEs in these neuronal cells. H5N1-specific hemagglutinin was found in the cytoplasm of the infected cells as early as 12 h post-infection. By 24 h post-infection, all cells in the cultures were infected. These findings coincided with time course of
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กาญจนทัต, อภิชาติ. โปรตีนไฮโดรไลเสตจากเมล็ดผลไม้ไทยเพื่อการบำบัดโรค : รายงานวิจัยฉบับสมบูรณ์ (ปีที่ 1). จุฬาลงกรณ์มหาวิทยาลัย, 2014. https://doi.org/10.58837/chula.res.2014.89.

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Blood pressure regulation is partially dependent on the renin-angiotensin system; renin acts on angiotensinogen to release angiotensin-I, which is further converted into the angiotensin II by the angiotensin I-converting enzyme (ACE). ACE plays a key physiological role in the regulation of blood pressure by virtue of two different reactions that it catalyzes: conversion of the inactive angiotensin I to the powerful vasoconstrictor angiotensin II, and inactivation of the vasodilator bradykinin. Crude extract and ammonium sulphate cut protein extracts, and their pepsin-pancreatin hydrolysates, f
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Fluhr, Robert, and Maor Bar-Peled. Novel Lectin Controls Wound-responses in Arabidopsis. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7697123.bard.

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Innate immune responses in animals and plants involve receptors that recognize microbe-associated molecules. In plants, one set of this defense system is characterized by large families of TIR–nucleotide binding site–leucine-rich repeat (TIR-NBS-LRR) resistance genes. The direct interaction between plant proteins harboring the TIR domain with proteins that transmit and facilitate a signaling pathway has yet to be shown. The Arabidopsis genome encodes TIR-domain containing genes that lack NBS and LRR whose functions are unknown. Here we investigated the functional role of such protein, TLW1 (TI
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