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Relevant bibliographies by topics / 1H detection

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Journal articles
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Academic literature on the topic '1H detection'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "1H detection"

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Kolen, Martin, Wilson A. Smith, and Fokko M. Mulder. "Accelerating 1H NMR Detection of Aqueous Ammonia." ACS Omega 6, no. 8 (2021): 5698–704. http://dx.doi.org/10.1021/acsomega.0c06130.

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Fang, Cheng, Jinjian Wu, Zahra Sobhani, Md Al Amin, and Youhong Tang. "Aggregated-fluorescent detection of PFAS with a simple chip." Analytical Methods 11, no. 2 (2019): 163–70. http://dx.doi.org/10.1039/c8ay02382d.

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In this study, aggregation-induced emission luminogens (AIEgen) are used for the detection of per- and poly-fluoroalkyl substances (PFAS) including perfluorooctanoic acid (PFOA), perfluorooctanesulfonic acid (PFOS) and 1H,1H,2H,2H-perfluorooctanesulfonic acid (6:2FTS).

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Yamauchi, Jun, and Yasuo Deguchi. "1H and 14N ENDOR spectra of tert-butylphenylnitroxide." Canadian Journal of Chemistry 66, no. 8 (1988): 1862–66. http://dx.doi.org/10.1139/v88-301.

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1H and 14N ENDOR spectra of tert-butylphenylnitroxide were observed in ethylbenzene solution. The experimental conditions for detecting optimum 1H and 14N ENDOR lines were quite different. The 1H hyperfine coupling constants and their signs are discussed from the viewpoints of molecular orbital calculations, general triple resonance, CRISP (cross relaxation intensity sequence pattern) method, and steric hindrance. In view of the large anisotropic hyperfine interaction between the nitrogen and the unpaired electron, detection of 14N ENDOR in nitroxide radicals is rather difficult, so that a TM1

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Furihata, Kazuo, and Mitsuru Tashiro. "Improved 19F{1H} Saturation Transfer Difference Experiments for Sensitive Detection to Fluorinated Compound Bound to Proteins." Magnetochemistry 5, no. 1 (2018): 1. http://dx.doi.org/10.3390/magnetochemistry5010001.

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The 19F{1H} saturation transfer difference (STD) method was improved for sensitive 19F detection using a human serum albumin-diflunisal complex. Because NMR (nuclear magnetic resonance) experiments with 19F detection are feasible for the selective detection of fluorinated compounds, more sensitive NMR methods are required to be developed for purposes of practicality. The present research focused on the investigations of 19F{1H} STD pulse techniques and experimental parameters, leading to the development of detection methods with higher sensitivity.

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Reddy, Ravinder, Alan H. Stolpen, Sridhar R. Charagundla, E. K. Insko, and John S. Leigh. "17O-decoupled 1H detection using a double-tuned coil." Magnetic Resonance Imaging 14, no. 9 (1996): 1073–78. http://dx.doi.org/10.1016/s0730-725x(96)00227-5.

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Sklenář, VladimÍR, Dennis Torchia, and Ad Bax. "Measurement of carbon-13 longitudinal relaxation using 1H detection." Journal of Magnetic Resonance (1969) 73, no. 2 (1987): 375–79. http://dx.doi.org/10.1016/0022-2364(87)90214-9.

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Musa, Liyana, Sabrilhakim Sidek, Firdaus Yusof @ Alias, Mohammad Hanafiah, Azlan Azha Musa, and Mazuin Mohd Razalli. "Proton Magnetic Resonance Spectroscopy (1H-MRS) in Studies of Glaucoma: A Scoping Review." Science Letters 15, no. 2 (2021): 135–46. http://dx.doi.org/10.24191/sl.v15i2.13835.

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Glaucoma is a disease that is chronic in nature and indistinctive at an early stage, leading to late detection. It has become a major public health problem and a leading cause of irreversible blindness worldwide. The proton magnetic resonance spectroscopy (1H-MRS), of late, has been utilised to evaluate metabolites concentration in the brain, especially for detecting neurodegenerative disease. Considering that glaucoma is a neurodegenerative disease, studies on the concentration of metabolites using 1H-MRS in glaucoma patients could be investigated. This scoping review aims to examine the exte

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Costa, Gabriel P. da, Diego Alves, and Márcio S. Silva. "Diethyl (2-(4-Phenyl-1H-1,2,3-triazol-1-yl)benzyl) Phosphate." Molbank 2021, no. 2 (2021): M1223. http://dx.doi.org/10.3390/m1223.

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Here we describe a full structural elucidation of the diethyl (2-(4-phenyl-1H-1,2,3-triazol-1-yl)benzyl) phosphate. This compound is a common by-product present in the synthetic protocols to access the α-hydroxy phosphonate compounds through of a Phospha-Brook rearrangement. Thus, a complete NMR structural characterization of this rearrangement by-product was performed by 1H, 13C{1H}, 31P{1H}, COSY, HSQC, and HMBC NMR experiments. Additionally, we have demonstrated that the 1H-31P HMBC is a 2D heteroatom NMR experiment which combines the simple identification by 31P chemical shift with the det

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Schnell, Ingo, Benedikt Langer, Serge H. M. Söntjens, Marcel H. P. van Genderen, Rint P. Sijbesma, and Hans Wolfgang Spiess. "Inverse Detection and Heteronuclear Editing in 1H–15N Correlation and 1H–1H Double-Quantum NMR Spectroscopy in the Solid State under Fast MAS." Journal of Magnetic Resonance 150, no. 1 (2001): 57–70. http://dx.doi.org/10.1006/jmre.2001.2312.

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Cao, Cheng, Xingmei You, Lei Feng, Guanghong Luo, Guoren Yue, and Xiangdong Ji. "Synthesis of new chromogenic sensors containing thiourea and selective detection for F–, H2PO4–, and Ac– anions." Canadian Journal of Chemistry 98, no. 10 (2020): 659–66. http://dx.doi.org/10.1139/cjc-2020-0120.

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Two new chromogenic sensors 1-(2-hydroxyphenyl)-3-(4-nitrophenyl)thiourea 1 and 1-(3-hydroxypyridin-2-yl)-3-(4-nitrophenyl)thiourea 2 bearing nitrophenyl and thiourea groups were designed and synthesized by one-step procedure and characterized through 1H NMR, 13C NMR, FTIR, and MS. The anion recognition property of the receptors was studied via naked-eye detection, UV–vis, and 1H NMR. Based on the existence of amino gen and hydroxyl moieties in receptors, receptors 1 and 2 exhibit obvious selectivity by the redshift of UV–vis signals, colour changes through naked-eye detection, and binding eff

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Dissertations / Theses on the topic "1H detection"

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Monck, Myrna R. "Detection of malignant disease by 1H-NMR spectroscopy of blood plasma." Thesis, University of Ottawa (Canada), 1988. http://hdl.handle.net/10393/5506.

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Mehridehnavi, Alireza. "Variable selection in neural networks for the classification of tumour tissue from '1H NMR spectra." Thesis, University of Liverpool, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.263843.

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Shannon, Matthew D. "High Resolution Structural and Dynamic Studies of Biomacromolecular Assemblies using Solid-State NMR Spectroscopy." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1534321838601796.

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Asami, Sam. "Method development for biomolecular solid-state NMR spectroscopy." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2014. http://dx.doi.org/10.18452/17044.

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Im Rahmen der vorliegenden Arbeit, wird ein neuartiges Markierungsschema für die Festkörper-NMR-Spektroskopie vorgestellt, das sogenannte Reduced Adjoining Protonation (RAP) Schema, welches die Protonendetektion sämtlicher Aliphaten erlaubt. Hochaufgelöste, 1H-detektierte 1H,13C Korrelationsspektren wurden erhalten. Des Weiteren wurde der Vorteil von hohen MAS-Frequenzen untersucht. 1H- und 13C-detektierte 3D Zuordnungsexperimente wurden implementiert, welche uns die Zuordnung von 90% aller aliphatischen Resonanzen von alpha-Spektrin SH3 erlaubten. Da die chemische Verschiebung abhängt vom St

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Shih, Yi-Yu, and 施逸優. "The detectability and reliability of vitamin C detection in human brain using standard 1H spectroscopy on a clinical 3T MR-system." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/58870774599002562644.

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博士<br>國立臺灣大學<br>電機工程學研究所<br>97<br>Magnetic resonance spectroscopy (MRS) has been used in clinical applications, especially in brains, for many years. Even though vitamin C plays an important role in central nervous system, its analysis was not included in traditional MRS studies. To evaluate whether vitamin C is detectable, we used a clinical routine MRS sequence, point-resolved spectroscopy (PRESS), combined LCModel analysis, and verified the reliability of its estimated concentration. Seventy-six in vivo single voxel spectra were analyzed and vitamin C could be successfully detected from mos

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Snyder, Sarah Rebecca [Verfasser]. "Detection of glutamate in vivo in the human brain using 2D zero-quantum coherence 1H NMR spectroscopy at 3 Tesla / put forward by Sarah Rebecca Snyder." 2009. http://d-nb.info/997847344/34.

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Varma, Sonal. "The potential of proton magnetic resonance spectroscopy (1H MRS) in detecting early colonic inflammation and assessing the effect of various dietary fatty acids on modulation of inflammatory bowel disease in an animal model." 2008. http://hdl.handle.net/1993/3039.

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The objectives of our study were to determine the potential of 1H MRS in detecting (1) early colonic inflammation, (2) effects of various fatty acids on normal colon and (3) their effects on IBD. Sprague dawley rat fed with 2% carrageenan was used as a model of IBD. Flaxseed oil served as ω-3, corn oil as ω-6 and beef tallow as saturated fatty acid sources. Control group animals were fed 5% corn oil, whereas, those in high-fat diet groups received an additional 7% of the respective fatty acids. After 2 weeks, 1H MRS and histology were conducted on excised colonic mucosa. Statistical classif

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Book chapters on the topic "1H detection"

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Ismail, Ismail M., and Ian D. Wilson. "Detection, Identification and Quantitative Analysis of Drugs by 1H NMR." In BIOACTIVE ANALYTES, Including CNS Drugs, Peptides, and Enantiomers. Springer US, 1986. http://dx.doi.org/10.1007/978-1-4757-1892-8_23.

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Saunders, John K., and Ian C. P. Smith. "Use of 1H MRS of Plasma and Tissue in Cancer Detection and Management." In Magnetic Resonance in Experimental and Clinical Oncology. Springer US, 1990. http://dx.doi.org/10.1007/978-1-4613-0691-7_7.

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Hass, H. G., F. Hösel, I. Mader, et al. "Subclinical and overt hepatic encephalopathy — detection and treatment control by proton magnetic resonance spectroscopy (1H-MRS)." In Encephalopathy and Nitrogen Metabolism in Liver Failure. Springer Netherlands, 2003. http://dx.doi.org/10.1007/978-94-010-0159-5_13.

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Kaplan, O., and J. S. Cohen. "Nuclear Magnetic Resonance Spectroscopy Studies of Cancer Cell Metabolism." In Biological NMR Spectroscopy. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195094688.003.0030.

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Nuclear magnetic resonance spectroscopy (NMR) is a powerful technique that provides information on biochemical status and physiological processes both in-vitro and in-vivo. The metabolism of intact cells and tissues can be studied in a continuous manner, and thus, NMR is a unique non-invasive research tool enabling detection of the metabolic changes as they occur (Cohen et al., 1983; Morris, 1988; Daly and Cohen, 1989). The first NMR study of cellular metabolism was done some 20 years ago, when Moon and Richards reported on the diphosphoglyceric acid (DPG) and pH shifts in erythrocytes (Moon, and Richards, 1973). NMR studies of metabolism of tumor cells were initiated by Navon et al. who investigated phosphorylated compounds in Ehrlich ascites cells (Navon etal., 1977). The choice of the element and isotope for a specific study of metabolism depends on its NMR properties, and the required data. The proton has the highest NMR sensitivity, and is the most abundant nucleus in biological molecules. However, this may cause difficulties in the interpretation and assignment of the 1H NMR spectrum. Moreover, since metabolic studies are usually performed in aqueous solutions, the huge signal from the water protons should be suppressed. Similarly, the wide signals arising from proteins and membrane components should be suppressed. These problems can be addressed now by several innovative NMR methods (Daniels et al., 1976; van Zijl and Cohen, 1992). The most widely used nucleus in NMR studies of metabolism has been 31p (see reviews Cohen (1988); Kaplan et al. (1992)). Phosphorous NMR spectroscopy can provide data on energy metabolism and substrate utilization, phospholipid pathways, precise intracellular pH, and membrane permeability and ion and water distribution. The spectrum is easy to interpret, but the number of compounds which are detectable is limited. Carbon NMR is also useful for NMR studies of metabolism since it is found in most biological compounds; however, 13C has a natural abundance of only 1.1%, and 13C enrichment is necessary. Other nuclei which are used less often in NMR studies of cellular metabolism are 23Na (Gupta et al., 1984), 19F (Malet-Martino, et al., 1986), and rarely 15N (Legerton et al., 1983) and 39K (Brophy et al., 1983).

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Conference papers on the topic "1H detection"

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Khan, Nafisah, Rachid Machrafi, and Vitali Kovaltchouk. "Response Functions of a Cs2LiYCl6 Scintillator to Neutron and Gamma Radiation." In 2013 21st International Conference on Nuclear Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/icone21-15249.

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A new scintillator, CLYC, has been investigated for possible use in neutron spectrometry. This sensor provides neutron detection for both thermal and fast neutrons from the reactions 6Li(n,α) and 35Cl(n,p), respectively. This work primarily focuses on the detection of fast neutrons since there is currently no sensor that can accurately and efficiently provide information about their incident neutron energy. Conventional methods of fast neutron detection have been based on utilizing materials that use the elastic scattering process of neutrons on 1H to create recoil protons or by thermalizing a

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NAKASHIMA, K., Y. OGATA, MN NAKASHIMA, and M. WADA. "HPLC WITH FLUORESCENCE DETECTION OF MORPHINE IN RAT PLASMA USING 4-(4,5-DIPHENYL-1H-IMIDAZOL-2-YL)BENZOYL CHLORIDE AS A LABEL." In Proceedings of the 13th International Symposium. WORLD SCIENTIFIC, 2005. http://dx.doi.org/10.1142/9789812702203_0060.

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Nikonov, Igor L., Rammohan Aluru, Albert F. Khasanov, et al. "Visual detection of nitro-explosives by using 10-(4,5-di-p-tolyl-1H-1,2,3-triazol-1-yl)-2,3-dimethoxypyrido[1,2-a]indole." In PROCEEDINGS OF INTERNATIONAL CONFERENCE ON RECENT TRENDS IN MECHANICAL AND MATERIALS ENGINEERING: ICRTMME 2019. AIP Publishing, 2020. http://dx.doi.org/10.1063/5.0028104.

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Widhalm, Georg, Martin Krssak, Georgi Minchev, et al. "Abstract B44: Value of 1H-magnetic resonance spectroscopy chemical shift imaging (CSI) for detection of anaplastic foci in diffusely infiltrating gliomas with non-significant contrast-enhancement." In Abstracts: AACR International Conference on Translational Cancer Medicine--; Mar 21–24, 2010; Amsterdam, The Netherlands. American Association for Cancer Research, 2010. http://dx.doi.org/10.1158/1078-0432.tcme10-b44.

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Jalali, Majid. "Measurement and Calculation of Gamma Radiation from HWZPR Reactor." In 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/icone14-89091.

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HWZPR is a research reactor with natural uranium fuel, D2O moderator and graphite reflector with maximum power of 100 W. It is a suitable means for theoretical research and heavy water reactor experiments. Neutrons from the core participate in different nuclear reactions by interactions with fuel, moderator, graphite and the concrete around the reactor. The results of these interactions are the production of prompt gammas in the environment. Useful information is gained by the reactor gamma spectrum measurement from point of view of relative quantity and energy distribution of direct and scatt

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