Log in

Relevant bibliographies by topics / NQR Spectrometer / Dissertations / Theses

To see the other types of publications on this topic, follow the link: NQR Spectrometer.

Dissertations / Theses on the topic 'NQR Spectrometer'

Author: Grafiati

Published: 12 October 2024

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'NQR Spectrometer.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Kachkachi, Noreddine. "Spectromètre RQN à base d’un SoC-FPGA : Conception numérique, vérification fonctionnelle et validation expérimentale." Electronic Thesis or Diss., Université de Lorraine, 2024. http://www.theses.fr/2024LORR0053.

Full text

Abstract:

La Résonance quadrupolaire Nucléaire (RQN) est une technique de spectroscopie radio fréquence très utile pour l'identification non invasive et l'analyse de produits chimiques. Cependant cette technique souffre de plusieurs problèmes, notamment de la faible sensibilité et pose beaucoup de défis quand à la conception de l'instrumentation RQN. Afin de relever ces défis techniques et d'améliorer davantage les performances, nous proposons de développer ici, une nouvelle approche qui consiste en la numérisation et l'optimisation de l'architecture électronique en vue d'améliorer la sensibilité. Ainsi

APA, Harvard, Vancouver, ISO, and other styles

2

Ariando, David Joseph. "A Portable Low-Cost NMR Spectrometer." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1515170982121573.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Digby, Megan Elizabeth. "Broadband DC SQUID NMR spectrometry on metals." Thesis, Royal Holloway, University of London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322702.

Full text

Abstract:

This Thesis describes the development of a broadband pulsed NMR spectrometer, based on a sensitive DC SQUID amplifier with wideband electronics, to observe directly the free precession of nuclear spins in bulk metallic samples (with broad NMR linewidths) at Larmor frequencies cß/2 ,r below 1 MHz. The sample is located inside a pickup coil, which forms a superconducting flux transformer with the input coil of the SQUID. The SQUID amplifier operates in a flux-locked-loop (FLL), hence it is sensitive to signals from DC up to the bandwidth of the FLL electronics. A modified commercial DC SQUID amp

APA, Harvard, Vancouver, ISO, and other styles

4

Barlow, G. K. "Development and application of some techniques for proton and sodium NMR." Thesis, University of York, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383846.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Gädke, Achim, Markus Rosenstihl, Christopher Schmitt, Holger Stork, and Nikolaus Nestle. "DAMARIS – a flexible and open software platform for NMR spectrometer control." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-194317.

Full text

Abstract:

Home-built NMR spectrometers with self-written control software have a long tradition in porous media research. Advantages of such spectrometers are not just lower costs but also more flexibility in developing new experiments (while commercial NMR systems are typically optimized for standard applications such as spectroscopy, imaging or quality control applications). Increasing complexity of computer operating systems, higher expectations with respect to user-friendliness and graphical user interfaces as well as increasing complexity of the NMR experiments themselves have made spectrometer con

APA, Harvard, Vancouver, ISO, and other styles

6

Persson, Josef. "Measurement of Reduction Efficiency in Green Liquor Using a NIR Spectrometer." Thesis, Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-318.

Full text

Abstract:

Domsjö Fabriker has earlier installed a Near Infrared (NIR) spectrometer after one of their recovery boilers. The purpose is to monitor the reduction efficiency of the boiler and later do process optimization. In this work calibration models for the instrument have been created. 108 green liquor samples have been extracted. A NIR spectrum was recorded for each sample and the samples were subsequently analyzed in laboratory for total alkali, sulfide and total sulfur. Several calibration models were created with multivariate data analysis and their performance and robustness were compared. The b

APA, Harvard, Vancouver, ISO, and other styles

7

Hughes, Leslie Peter. "Maximum entropy methods applied to NMR and mass spectrometry." Thesis, Durham University, 2001. http://etheses.dur.ac.uk/3785/.

Full text

Abstract:

Maximum Entropy data processing techniques have been widely available for use by NMR spectroscopisis and mass spectrometrisls since they were first reported as a tool for enhancing damaged images. However, the techniques have been met with a certain amount of scepticism amongst the spectroscopic community; not least their apparent ability to get something for nothing. The aim of the work presented in this thesis is to demonstrate that if these techniques are used carefully and in appropriate situations a great deal of information can be extracted from both NMR and mass spectra. This has been a

APA, Harvard, Vancouver, ISO, and other styles

8

Vilenius, Esa. "On the analysis of near-infrared point spectrometer data for the investigation of lunar surface mineralogy." [Katlenburg-Lindau] Copernicus Publ.***5004719, 2009. http://d-nb.info/996869182/04.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

McGill, Colin Adam. "Studies of low-field nuclear magnetic resonance and Raman spectrometries for process analytical chemistry." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248282.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Gouilleux, Boris. "Gradient-based methodson a benchtop spectrometer : new perspectives for low-field NMR spectroscopy." Thesis, Nantes, 2017. http://www.theses.fr/2017NANT4036/document.

Full text

Abstract:

La RMN à haut champ, basée sur des aimants supraconducteurs, est caractérisée par une instrumentation onéreuse et encombrante qui limite son utilisation dans les environnements de production. Le récent renouveau des aimants permanents a engendré des spectromètres RMN de paillasse qui permettent la réalisation d’expériences RMN directement sous la hotte du chimiste. L’objectif de cette thèse est d’améliorer la performance analytique de ces nouveaux spectromètres à bas champ. Dans cette optique, nous avons implémenté pour la première fois la RMN 2D Ultrarapide (UF) ainsi que des méthodes moderne

APA, Harvard, Vancouver, ISO, and other styles

11

Ajimo, Jacob. "A UV-Visible-NIR, Time-Resolved Fluorescence Spectrometer for High-Pressure Biological Studies." Miami University / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=miami1134160375.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Oriola, Folch Marta. "Non-destructive condition assessment of painting canvases using NIR spectrometry." Doctoral thesis, Universitat de Barcelona, 2012. http://hdl.handle.net/10803/663091.

Full text

Abstract:

El soporte de tela de los cuadros se compone mayoritariamente de celulosa. Una de las vias de degradación de la celulosa es la hidrólisis ácida, que implica que en un ambiente ácido (bajo pH), la degradación se produce a una velocidad mayor. La principal consecuencia de esta acidez es la ruptura de las cadenas del polímero de celulosa que se mide a través del grado de polimerización (DP). Una disminución del DP implica que las fibras y los tejidos tienen una resistencia mecánica menor, y consecuentemente este parámetro se puede utilizar para monitorizar el estado de conservación de estos mater

APA, Harvard, Vancouver, ISO, and other styles

13

Pagnano, Marco Aurelio de Oliveira. "Automação de um espectrômetro por ressonância magnética nuclear pulsada." Universidade de São Paulo, 1993. http://www.teses.usp.br/teses/disponiveis/54/54132/tde-19082014-101639/.

Full text

Abstract:

Este trabalho consistiu na automação do espectrômetro de Ressonância Magnética Nuclear Pulsada existente no laboratório dos professores José Pedro Donoso e Claudio José Magon. Foram efetuados circuitos adicionais e melhorias no equipamento que eles possuíam, à nível de hardware e software. Foram construídas e programadas interfaces paralelas que ligam o microcomputador a um gerador de pulsos, fabricado pela Tecmag Inc., e a um digitalizador rápido (10 ns) Nicolet 430. O programador de pulsos pode acionar independentemente 75 linhas durante o intervalo de tempo subdividido em 2048 eventos, tamb

APA, Harvard, Vancouver, ISO, and other styles

14

Motyčka, Lukáš. "Radiofrekvenční metoda detekce výbušnin a drog - NQR." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-219982.

Full text

Abstract:

The thesis deals with RF spectroscopic methods, which are applicable for the detection of hazardous substances such as explosives or drugs. Particular attention is focused on promising method of nuclear quadrupole resonance. Abroad this method has recently been applied in the detection of energetic materials in hazardous locations. The cornerstone of the nuclear quadrupole resonance is to evaluate the interaction between electromagnetic radiation, in the range of medium to very short waves, and the researched substance. Observed parameter are the resonant frequencies of the substance. Spectral

APA, Harvard, Vancouver, ISO, and other styles

15

Weekes, Anna L. "Design and construction of an ultrasonic probe for use in a Cryo-Magnet NMR Spectrometer." Thesis, Aston University, 1998. http://publications.aston.ac.uk/9612/.

Full text

Abstract:

SINNMR (Sonically Induced Narrowing of the Nuclear Magnetic Resonance spectra of solids), is a novel technique that is being developed to enable the routine study of solids by nuclear magnetic resonance spectroscopy. SINNMR aims to narrow the broad resonances that are characteristic of solid state NMR by inducing rapid incoherent motion of solid particles suspended in a support medium, using high frequency ultrasound in the range 2-10 MHz. The width of the normal broad resonances from solids are due to incomplete averaging of several components of the total spin Hamiltonian caused by restricti

APA, Harvard, Vancouver, ISO, and other styles

16

Gipson, Geoffrey T. Sokhansanj Bahrad. "Discovery Of discriminative LC-MS and 1H NMR metabolomics markers /." Philadelphia, Pa. : Drexel University, 2008. http://hdl.handle.net/1860/2766.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Shah, Siddharth Prakashchandra. "LIPID COMPOSITIONS OF MICROBIAL ORGANISMS ISOLATED FROM EXTREME ENVIRONMENTS AND THEIR IMPLICATION IN THERMO STABILITY OF BACTERIAL CELL MEMBRANE STRUCTURE." Diss., Temple University Libraries, 2016. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/419298.

Full text

Abstract:

Chemistry<br>Ph.D.<br>Microorganisms with an ability to thrive in harsh environments are referred as “extremophiles”. With advances in biotechnology, interest has grown in the extremophile research because of their unique macromolecules’ characteristics due to their growth environments. Over last decade, researchers have isolated many extremophiles from environments like volcano, salt lakes, hydrothermal vents, deep oceans, Antarctica glaciers etc. Macromolecules of these extremophiles are responsible for their survival in extreme environments. In this research work we have isolated lipid mole

APA, Harvard, Vancouver, ISO, and other styles

18

Li, Jian. "Using cadmium-113 NMR spectrometry to study metal complexation by natural organic matter." Diss., Georgia Institute of Technology, 2000. http://hdl.handle.net/1853/25720.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Petry, David P. "Silicalite Clear Sol Precursors Studied by NMR, Mass Spectrometry and Dynamic Light Scattering." Thesis, University of Manchester, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.525295.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Kindahl, Lill. "Structural studies of saccharides and glycopeptides in aqueous solution by ¹H NMR spectroscopy /." Uppsala : Dept. of Chemistry, Swedish Univ. of Agricultural Sciences, 2003. http://epsilon.slu.se/a377.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Chen, Ling. "Improvements in excitation selectivity and spectral precision in Fourier transform NMR and mass spectrometry /." The Ohio State University, 1987. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487330761219982.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Puschmann, Robert. "Analysis and Quantification of Inositol Poly- and Pyrophosphates by NMR Spectroscopy and Mass Spectrometry." Doctoral thesis, Humboldt-Universität zu Berlin, 2020. http://dx.doi.org/10.18452/21044.

Full text

Abstract:

Inositolpyrophosphate (PP-InsP) sind eine Gruppe sekundärer Signalmoleküle, die in einer Vielzahl zellulärer Prozesse, von Phosphathomeostase über Insulinsignalisierung bis Apoptose eine Rolle spielen. Die Art und Weise, wie PP-InsPs ihre Funktion ausführen, noch weitgehend unbekannt. Deshalb wurden zwei neue analytische Methoden basierend auf Kernspinresonanzspektroskopie und Flüssigchromatographie mit Massenspektrometrie-Kopplung (LCMS) entwickelt. Um die limitierende Sensitivität der Kernresonanzspektroskopie zu umgehen, wurde die Synthese von kernspinresonanzaktivem, 13C-markiertem Inosit

APA, Harvard, Vancouver, ISO, and other styles

23

Brodbeck, Roland. "Balloon-borne far-infrared Fabry-Perot spectrometer for astrophysical observations /." [S.l.] : [s.n.], 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12510.

Full text

APA, Harvard, Vancouver, ISO, and other styles

24

Bajwa, Tejbir Singh. "Development of a software tool to perform qualitative analysis on spectral data obtained from a NIR-MOEMS spectrometer." abstract and full text PDF (UNR users only), 2009. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1464416.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Banerjee, Utsab. "Development of Novel High-Frequency EPR Spectrometer and In-house fabrication of NMR MAS drive caps and ultra-centrifuge kit packing tools." Electronic Thesis or Diss., Sorbonne université, 2023. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2023SORUS585.pdf.

Full text

Abstract:

La spectroscopie par résonance magnétique nucléaire (RMN) est une méthode puissante qui permet de comprendre les processus chimiques et de caractériser une grande variété de molécules. La simplicité de la préparation, l'absence de dommages à l'analyte et les faibles des échantillons sont autant de raisons qui font de la RMN une méthode de spectroscopie largement utilisée. Cependant, elle présente également certains inconvénients, notamment une faible sensibilité. Il existe plusieurs méthodes pour améliorer la sensibilité de la RMN. La polarisation nucléaire dynamique (DNP) est l'un des moyens

APA, Harvard, Vancouver, ISO, and other styles

26

Dag, Semiha. "Structural studies of some bacterial lipopolysaccharides and extracellular polysaccharides using NMR spectroscopy and mass spectrometry /." Uppsala : Dept. of Chemistry, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200545.pdf.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Moletta, Mattia <1994&gt. "Organic Synthesis and Characterization (NMR, mass spectrometry) of Beta-Glucosyl-Cholesterol for Parkinson's Disease research." Master's Degree Thesis, Università Ca' Foscari Venezia, 2020. http://hdl.handle.net/10579/18008.

Full text

Abstract:

The aim of this research consists in the organic synthesis and characterization of a synthetic equivalent of β-glucosylcholesterol bearing a terminal alkyne functionality to ascertain, in collaboration with a research group of biologists from University of Padova, the possible involvement of this class of derivatives in the Parkinson’s disease’s aetiology. The target molecule, thanks to the presence of a reactive acetylenic moiety is suitable to further conjugation by “Click Chemistry” with azido functionalized solid supports or fluorophores. The synthetic approach consisted into overall 12 sy

APA, Harvard, Vancouver, ISO, and other styles

28

Zoppi, Ugo. "Isobar suppression in accelerator mass spectrometry /." [S.l.] : [s.n.], 1993. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10373.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Piecuch, Scott. "A Fast NIR Spectrometer for Examining Explosive Events: Emission of PETN Based Explosives and H₂O Absorption Method Feasibility." [Milwaukee, Wis.] : e-Publications@Marquette, 2009. http://epublications.marquette.edu/theses_open/13.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Srivastava, Abhishek. "Metabolism and bioactivation of nevirapine in humans and rats : Integrated application of NMR and mass spectrometry." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526804.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Sanh, Alan Dominique. "Peptide-RNA recognition : investigation of non-covalent interactions using ESI-mass spectrometry and proton NMR spectroscopy." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/352.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Tolonen, A. (Ari). "Analysis of secondary metabolites in plant and cell culture tissue of Hypericum perforatum L and Rhodiola rosea L." Doctoral thesis, University of Oulu, 2003. http://urn.fi/urn:isbn:9514271610.

Full text

Abstract:

Abstract Sensitive chromatographic methods were developed for the quantitative analysis of secondary metabolites in Hypericum perforatum (St. John's wort) and Rhodiola rosea (Golden root, rose root) extracts. Sample preparation methods were developed for plant, cell culture and biotransformation suspension matrixes. High performance liquid chromatography (HPLC) was used for the separation of analytes, and chromatographic data was acquired using photodiode array (PDA) detection or atmospheric pressure ionization mass spectrometry (API-MS). Ionization efficiencies with electrospray ionization (E

APA, Harvard, Vancouver, ISO, and other styles

33

Samino, Gené Sara. "Mass spectrometry and nuclear magnetic resonance based metabolomics applied to the study of polycystic ovary syndrome." Doctoral thesis, Universitat Rovira i Virgili, 2013. http://hdl.handle.net/10803/128209.

Full text

Abstract:

Objectives: Three objectives of this thesis have been: (i) Mastering of the main analytical platforms used in metabolomics, (ii) Developing an untargeted metabolomic workflow, involving novel aspects of sample preparation, and data processing for metabolite identification, (iii) Implementing our untargeted metabolomic workflow to the study of human patients with Polycystic Ovary Syndrome (PCOS) and their response to drug treatment Results: In Work 1: Optimization metabolite extraction conditions for NMR analysis, followed by LC/ESI-MS by using the same sample extract with no need for solve

APA, Harvard, Vancouver, ISO, and other styles

34

Gädke, Achim, Markus Rosenstihl, Christopher Schmitt, Holger Stork, and Nikolaus Nestle. "DAMARIS – a flexible and open software platform for NMR spectrometer control: DAMARIS – a flexible and open software platform for NMRspectrometer control." Diffusion fundamentals 5 (2007) 6, S. 1-9, 2007. https://ul.qucosa.de/id/qucosa%3A14270.

Full text

Abstract:

Home-built NMR spectrometers with self-written control software have a long tradition in porous media research. Advantages of such spectrometers are not just lower costs but also more flexibility in developing new experiments (while commercial NMR systems are typically optimized for standard applications such as spectroscopy, imaging or quality control applications). Increasing complexity of computer operating systems, higher expectations with respect to user-friendliness and graphical user interfaces as well as increasing complexity of the NMR experiments themselves have made spectrometer con

APA, Harvard, Vancouver, ISO, and other styles

35

Roos, Felix Franz. "Algorithms for peptide identification by tandem mass spectrometry /." Zürich : ETH, 2006. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16844.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Sierk, Bernd. "Solar spectrometry for determination of tropospheric water vapor /." Zürich, 2000. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13850.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Wortmann, Arno. "Investigation of noncovalent complexes with soft ionization mass spectrometry /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17353.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

Müller, Lukas Niklaus. "Novel computational techniques for quantitative mass spectrometry based proteomics /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17802.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Paudel, Liladhar. "High Field ¹H Nuclear Magnetic Resonance (NMR) Spectroscopy Based Metabolomics and Complex Mixture Analysis by Multidimensional NMR and Liquid Chromatography-Mass Spectrometry (LC-MS)." University of Akron / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1343403647.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

Forshed, Jenny. "Processing and analysis of NMR data : Impurity determination and metabolic profiling." Doctoral thesis, Stockholm : Dept. of analytical chemistry, Stockholm university, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-712.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Chen, Yanyi. "Dissecting Key Determinants for Calcium and Calmodulin Regulation of GAP Junction and Viral Protein." Digital Archive @ GSU, 2012. http://digitalarchive.gsu.edu/chemistry_diss/64.

Full text

Abstract:

Calcium and calmodulin are implicated in mediating the Ca2+-dependent regulation of gap junctions that are essential for the intercellular transmission of molecules such as nutrients, metabolites, metal ions and signal messengers (< 1000 Da) through its specialized cell membrane channels and communication to extracellular environment. To understand the key determinants for calcium and calmodulin regulation of gap junction, in this study, we identified a calmodulin binding domain in the second half of the intracellular loop of Cxonnexin50 (the major gap junction protein found in an eye lens) us

APA, Harvard, Vancouver, ISO, and other styles

42

Rigau, Roca Laura. "Identification of protein-ligand interactions by mass spectrometry and NMR, case studies: LFA-1, Bcl-xl and Bcl-2." Thesis, University of Bristol, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.492546.

Full text

Abstract:

Current genomic and proteomic research is generating a considerable number of potential new therapeutic targets. To tackle all these pharmacological targets, the development of rapid and reliable screening methods, which give information on protein-ligand interactions, are of great importance. New advances in these technologies are often emerging and more will surely follow.

APA, Harvard, Vancouver, ISO, and other styles

43

Abdullah, Sewa Faraj. "Proteomics approaches to polyketide synthases interfaces by mass spectrometry and NMR spectroscopy and the application of chemometrics to metabolomics." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682232.

Full text

Abstract:

Proteomics is a rapidly growing discipline dealing with structure, molecular interactions, conformational dynamics, modifications and the functions of proteins. Mass spectrometry (MS) and (nuclear magnetic resonance) (NMR) have been used comprehensively to study protein interactions. Acyl carrier protein (ACP) interacts with more than 30 partner proteins during either fatty acid or polyketide biosynthesis. In order to be fully activated ACP gains a 4'-phosphopantetheinyl (4'-PP) group from coenzyme A using acyl carrier protein synthase (AcpS) via posttranslational modification. Protein-protein

APA, Harvard, Vancouver, ISO, and other styles

44

Grajcar, Michal. "New concepts of ¹°Be accelerator mass spectrometry at low energies /." Zürich : ETH, 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16249.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Bensimon, Maklouf. "Photodissociation d'ions par laser infrarouge dans un spectromètre de masse à transformée de Fourier /." [S.l.] : [s.n.], 1987. http://library.epfl.ch/theses/?nr=694.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

O'Kennedy, Sean James. "A kinetic and thermodynamic study of procyanidin oligomer conformation by 1H NMR and DFT." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/98054.

Full text

APA, Harvard, Vancouver, ISO, and other styles

47

Ma, Cunxian. "Tentative Identification of Hydroxylated 2,2',3,5',6-pentachlorobiphenyl Metabolites in Whole Poplar Plants by a Combination of Chromatographic and Spectrometry Techniques." Thesis, University of Iowa, 2014. https://ir.uiowa.edu/etd/4691.

Full text

Abstract:

2,2',3,5',6-pentachlorobiphenyl (PCB95) is a chiral congener of the persistent organic pollutants (POPs) family of PCBs. It has been shown that chiral PCBs can be enantioselectively transformed into hydroxylated metabolites by cytochrome P450 in animals. Previous studies in our group suggested that PCB 95 can be enantioselectively translocated and metabolized in whole poplar plants. In this work, healthy whole poplar plants were hydroponically exposed to PCB95 for 30 days. Two unknown OH-PCB95 metabolites were detected in the roots by HPLC-MS. Different chromatographic and spectrometry techniq

APA, Harvard, Vancouver, ISO, and other styles

48

Joubert, Valentin. "Analyse isotopique positionnelle pour les sciences forensiques : développement et utilisation de la spectrométrie RMN quantitative 13C and 15N NMR spectrometry." Thesis, Nantes, 2018. http://www.theses.fr/2018NANT4078/document.

Full text

Abstract:

Dans la bataille contre le trafic des stupéfiants, c’est le concept de profilage du produit illicite qui est couramment utilisé comme outil de lutte contre les réseaux de distribution de la drogue. Ce profilage est réalisé à partir des teneurs en impuretés de synthèse, des solvants résiduels, etc. Le projet ANR FRIIME propose de suivre le même objectif en utilisant la teneur isotopique comme marqueur intrinsèque de la molécule cible. Jusqu’à présent seule la teneur moyenne en isotope a été exploitée et mesurée par spectrométrie de masse isotopique (SMRI). En recourant à une technologie innovan

APA, Harvard, Vancouver, ISO, and other styles

49

Bovet, Cédric. "Characterizing the endocrine disrupting activity of small molecules using mass spectrometry /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17873.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Dubois, Frédéric Dubois Frédéric. "Ion formation and detection in matrix-assisted laser desorption/ionization mass spectrometry /." [S.l.] : [s.n.], 1999. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=13255.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!