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Dissertations / Theses on the topic 'Derivatization'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Little, Michael J. "Single-label fluorescent derivatization of peptides." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape16/PQDD_0004/MQ40195.pdf.

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2

Betit, Lyanne. "Derivatization of Azomethine Imines into beta-Aminocarbonyl Motifs." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32473.

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β-Aminocarbonyl motifs are a privileged substructures in medicinal chemistry and peptidomimetics. As part of our efforts toward metal free aminations, we developed a method for intermolecular amino-carbonylation of alkenes using hydrazones. This method provides access to cyclic azomethine imines containing a β-aminocarbonyl motif. Conceptually, these dipoles can be derivatized into many bioactive compounds, such as 1,3-diamines, β-amino amides and β-amino acids. The first part of this thesis will present the results on the derivatization of our aminocarbonylation products into various nitroge

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3

Porche, Mya. "Spectrophotometric Determination of Nitrite by Derivatization with Captopril." Miami University / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=miami1399075201.

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4

Jose, Jiney. "Water-soluble benzophenoxazine dyes: syntheses, derivatization and photophysical studies." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4915.

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A set of three benzophenoxazine dyes, two completely soluble and one partially soluble in aqueous media, has been prepared and their spectroscopic properties examined. These dyes can be used as either donor or acceptor in synthesis of through-bond energy transfer cassettes. Structural modifications prevented aggregation in water and improved their fluorescence properties in water. Their absorption and emission were studied in both organic and aqueous media. Two of the three dyes have superior quantum yields in aqueous media as compared to other reported dyes. Improved quantum yield makes these

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5

Shepherd, Micah Douglas. "COMBINATORIAL BIOSYNTHETIC DERIVATIZATION OF THE ANTITUMORAL AGENT GILVOCARCIN V." UKnowledge, 2011. http://uknowledge.uky.edu/gradschool_diss/149.

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Gilvocarcin V (GV), the principal product of Streptomyces griseoflavus Gö 3592 and other Streptomyces spp., is the most prominent member of a distinct class of antitumor antibiotics that share a polyketide derived coumarin-based aromatic core. GV and other members of this class including polycarcin V from Streptomyces polyformus, often referred to as gilvocarcin-like aryl C-glycosides, are particularly interesting because of their potent bactericidal, virucidal and antitumor activities at low concentrations while maintaining low in vivo toxicity. Although the precise molecular mechanism of GV

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6

Teschler, Timothy Luke. "PREPARATION AND DERIVATIZATION OF NOVEL SYDNONIMINES AND THEIR ESTERS." Wright State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=wright1189622838.

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7

Mohanty, Nihar Ranjan. "Structural and chemical derivatization of graphene for electronics and sensing." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/9264.

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Doctor of Philosophy<br>Department of Chemical Engineering<br>Vikas Berry<br>Graphene - a single atom thick two dimensional sheet of sp[superscript]2 bonded carbon atoms arranged in a honeycomb lattice - has shown great promise for both fundamental research & applications because of its unique electrical, optical, thermal, mechanical and chemical properties. Derivatization of graphene unlocks a plethora of novel properties unavailable to their pristine parent “graphene”. In this dissertation we have synthesized various structural and chemical derivatives of graphene; characterized them in deta

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8

Bachawala, Praveen. "Large scale synthesis and derivatization of corannulene the smallest buckybowl /." Master's thesis, Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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9

Hoefler, Christoph. "Preparation of electron donor and acceptor molecules for porphyrin derivatization." PDXScholar, 1992. https://pdxscholar.library.pdx.edu/open_access_etds/4317.

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Porphyrins derivatized with electron donating and electron withdrawing groups can be used for artificial photosynthesis. Four new compounds, two electron donors and two electron acceptors, have been synthesized for prospective porphyrin linkages.

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10

ROBY, BENJAMIN JAMES. "EFFECT OF GRIT-BLASTING AND PLASMA ETCHING ON THE SURFACE COMPOSITION AND SURFACE ENERGY OF GRAPHITE/EPOXY COMPOSITES." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1131650624.

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11

Beardsley, Richard L. "Development of peptide and protein derivatization strategies for mass spectrometric analysis." [Bloomington, Ind.] : Indiana University, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3215187.

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Thesis (Ph. D.)--Indiana University, Dept. of Chemistry, 2006.<br>Source: Dissertation Abstracts International, Volume: 67-04, Section: B, page: 1978. Adviser: James P. Reilly. "Title from dissertation home page (viewed June 20, 2007)."

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12

Marais, Adriaan Albertyn Scheepers. "Applications of extractive-derivatization sample preparation in a clinical toxicology laboratory setting." Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-11252009-235345/.

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13

Lavergne, Kaitlyn. "Synthesis of Azomethine Imines via Alkene Aminocarbonylation and their Derivatization into Pyrazolones." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32516.

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Nitrogen-containing heterocyclic compounds are very important to the pharmaceutical and agrochemical industries, among others. Over the past few years, the Beauchemin group has been exploring reactivity of N-substituted isocyanates and as part of this has developed a metal-free alkene aminocarbonylation process relying on imino-isocyanates to form azomethine imines. The azomethine imines formed are interesting since they contain a cyclic β-aminocarbonyl motif. Catalysis of this reaction using basic additives allowed milder reaction conditions with electron-rich C=C bonds such as enol ethers. E

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14

Ribeiro, Diana de Oliveira. "Using gold nanoparticles in protein crystallography: studies in crystal growth and derivatization." Master's thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8148.

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Dissertation for the Master Degree in Structural and Functional Biochemistry<br>In the field of protein structural analysis, X-ray crystallography plays a major role to expand the knowledge on how proteins function, as well as their interactions with other molecules. However, several obstacles can be present when attempting to grow protein crystals and subsequently determine its structure. Therefore, strategies that facilitate the production of suitable crystals for X-ray diffraction techniques, such as nucleating agents, or that allow overcoming the phase problem, as the production of heav

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15

Weller, Marc F. "Advanced Oxidation Treatment for Ibuprofen, Ketoprofen, and Naproxen in Water and Method for Determining Ibuprofen, Ketoprofen, and Naproxen Concentration using LLE-GC-FID." Digital WPI, 2013. https://digitalcommons.wpi.edu/etd-theses/99.

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Pharmaceuticals are a group of emerging organic compounds of environmental concern used extensively in human and veterinary medicine. They are continually released into the environment as a result of manufacturing operations and excretion from humans and animals. These compounds enter directly into the municipal sewage systems and into wastewater treatment plants. A large number of important and potentially harmful organic contaminants, such as these pharmaceuticals, are not regulated in drinking and other waters. As a result, conventional technologies at most waste water treatment plants

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16

Hoffman, Brian Jeffrey. "Analysis of Alcohol and Alkylphenol Polyethers via Packed Column Supercritical Fluid Chromatography." Diss., Virginia Tech, 2004. http://hdl.handle.net/10919/11174.

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Alkylphenol ethoxylates (APEOs), alcohol ethoxylates (AEOs), and alcohol propoxylates (APOs) are non-ionic surfactants used in daily care products and detergents. They are formed as an oligomeric series with a varying distribution, which determines their commercial application. The goal of the research performed was the development of sample characterization methods for non-ionic surfactants utilizing supercritical fluid chromatography (SFC) under mild instrument operating conditions. The aryl group present in APEOs allowed ultraviolet (UV) detection, with an equal molar response for oligom

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17

Agarwal, Sheetal Mitra Ashim K. "Prodrug derivatization of lopinavir a tool to increase its systemic and brain bioavailability /." Diss., UMK access, 2008.

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Thesis (Ph. D.)--School of Pharmacy and Dept. of Chemistry. University of Missouri--Kansas City, 2008.<br>"A dissertation in pharmaceutical sciences and chemistry." Advisor: Ashim K. Mitra. Typescript. Vita. Description based on contents viewed Sept. 12, 2008; title from "catalog record" of the print edition. Includes bibliographical references (leaves 136-142). Online version of the print edition.

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18

Onwukamike, Kelechukwu Nnabuike. "Sustainable cellulose solubilization, regeneration and derivatization in a DBU-CO2 switchable solvent system." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0016/document.

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Source de carbone la plus abondante du règne végétal et non concurrentielle de la chaîne alimentaire, la cellulose est une alternative aux ressources fossiles crédible pour le développement de nouveaux matériaux polymères. Néanmoins, à ce jour, les nombreux travaux décrits dans la littérature et visant la valorisation et la modification chimique de ce biopolymère fascinant ne répondent pas suffisamment, ou tout au moins que très partiellement, aux critères de durabilité. Pour répondre à ces critères de développement durable, le caractère renouvelable de la cellulose et les concepts de procédés

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19

He, Yuanyuan. "Search for organic compounds with MTBSTFA/DMF derivatization and TMAH thermochemolysis on Mars." Thesis, université Paris-Saclay, 2021. http://www.theses.fr/2021UPAST003.

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La recherche de biosignatures sur Mars fait parti des sujets scientifiques populaire à la fois dans le grand publique mais également au sein de notre communauté scientifique. Les instruments Mars Organic Molecule Analyzer (MOMA) et Sample Analysis at Mars (SAM) respectivement à bord des rovers Rosalind Franklin (Exomars 2022) et Curiosity (Mars Science Laboratory), sont capables de détecter la matière organique présente en surface et subsurface à des concenrtations inférieures au ppb. Afin d’identifier la matière organique, ces deux instruments utilisent la pyrolyse couplée à de la chromatogra

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20

Shi, Changhong. "Simultaneous derivatization and flame photometric detection of some elements from Groups 8 and 14." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ36375.pdf.

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21

Matos, Geraldo Domingues. "Ampliação das potencialidades da espectrometria de absrorção atomica baseada em spray termico (TS-FF-AAS)." [s.n.], 2007. http://repositorio.unicamp.br/jspui/handle/REPOSIP/248583.

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Orientador: Marco Aurelio Zezzi Arruda<br>Tese (doutorado) - Universidade Estadual de Campinas, Instituto de Quimica<br>Made available in DSpace on 2018-08-08T22:29:56Z (GMT). No. of bitstreams: 1 Matos_GeraldoDomingues_D.pdf: 2963776 bytes, checksum: 63761ac61fa005bd6133cb5e9831941d (MD5) Previous issue date: 2007<br>Resumo: O objetivo desta Tese foi a ampliação das potencialidades do método TS-FF-AAS, no que diz respeito à melhora da sensibilidade para Cd e Co. Com relação ao Cd, foi desenvolvido um procedimento de pré-concentração em linha em uma minicoluna contendo bagaço de uva. Inicial

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22

Pawar, Siddhesh Nitin. "Chemical Modification of Alginates in Organic Media." Diss., Virginia Tech, 2013. http://hdl.handle.net/10919/52635.

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Alginates are (1and4) linked linear copolysaccharides composed of B-D-mannuronic acid (M) and its C-5 epimer, a-L-guluronic acid (G). Several strategies to synthesize organically modified alginate derivatives have been reported, but almost all chemistries are performed in either aqueous or aqueous-organic media. The ability to react alginates homogeneously in organic solvents would open up access to a wide range of new chemistries and derivatives. However, past attempts have been restricted by the absence of methods for alginate dissolution in organic media. We therefore report a strategy to s

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23

Jagst, Eda [Verfasser]. "Surface functional group characterization using Chemical Derivatization X-ray Photoelectron Spectroscopy (CD-XPS) / Eda Jagst." Berlin : Freie Universität Berlin, 2010. http://d-nb.info/1024743934/34.

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24

Kanthasamy, Visahini. "Determination of formaldehyde in ambient air using on-fibre derivatization with solid phase microextraction (SPME)." Thesis, McGill University, 2011. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=97054.

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Formaldehyde is an important intermediate in the gas-phase methane oxidation chain and plays an important role in the chemistry of the troposphere by influencing the odd hydrogen budget (HOx = HO + HO2), and thus the Earth's oxidative capacity. The evaluation of the importance of formaldehyde in atmospheric cycles requires accurate and precise measurements of its concentration in the atmosphere. In this work, the concentration of formaldehyde in unpolluted outdoor air will be determined using an on fibre derivatization-solid phase micro-extraction (SPME). This method consists of derivatizing

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25

Njaria, Paul Magutu. "Antimycobacterial 2-aminoquinazolinones and benzoxazole-based oximes: synthesis, biological evaluation, physicochemical profiling and supramolecular derivatization." Doctoral thesis, University of Cape Town, 2017. http://hdl.handle.net/11427/26954.

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Tuberculosis (TB) is a life-threatening infectious disease caused by Mycobacterium tuberculosis (Mtb). Globally, TB is a major public health burden with an estimated 10.4 million new cases and 1.8 million deaths reported in 2015. Although TB is curable, the treatment options currently available are beset by numerous shortcomings such as lengthy and complex treatment regimens, drug-drug interactions, drug toxicities, as well as emergence of widespread multi-drug resistance. Therefore, there is an urgent and compelling need to develop new, more effective, safer drugs with novel mechanisms of act

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26

Zhang, Ying. "Fluorescent derivatization of glycine using o-phthalaldehyde and captopril for the indirect determination of nitrite." Miami University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=miami1438036174.

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27

The, Juliana. "Structural Studies of Thioredoxin S-nitrosation and Detection of Protein S-nitrosothiols by Phosphine Derivatization." Diss., The University of Arizona, 2013. http://hdl.handle.net/10150/312667.

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S-nitrosylation (or S-nitrosation) has emerged as an important pathway of non-classical nitric oxide signaling. This post-translational modification involves the transfer of a nitroso group onto a cysteine residue and has been shown to regulate protein function. However, very little is known about the mechanism and structure-dependent factors of the modification. Understanding of S-nitrosothiol chemistry has lagged behind that for the classical nitric oxide signaling pathway due to challenges and limitations of current detection methods of S-nitrosothiols. The S-N bond is typically labile and

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28

Esakkimuthu, Esakkiammal Sudha. "Etude de nouvelles techniques de dérivation chimique de la lignine en vue de l'analyse par chromatographie d'exclusion stérique." Thesis, Université Grenoble Alpes, 2020. https://tel.archives-ouvertes.fr/tel-02612598.

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La lignine, deuxième biopolymère le plus abondant sur Terre, possède une structure aromatique tridimensionnelle hautement ramifiée, porteuse de différents groupements fonctionnels, principalement alcooliques et phénoliques. Le travail de recherche a porté sur les méthodes de dérivation chimique de la lignine permettant de quantifier les hydroxyles et de déterminer les distributions de masses molaires des lignines par chromatographie d’exclusion stérique et multi-détection. Cinq lignines techniques ont été étudiées : Protobind 1000, Organosolv (CIMV), lignine Kraft de pin, lignine Kraft d’Eucal

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29

Marsella, Adam Manuele. "A new method for the measurement of airborne formaldehyde using derivatization with 3,5-bis(trifluoromethyl)phenylhydrazine." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape7/PQDD_0019/MQ45914.pdf.

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30

Zhang, Yun. "Mass Spectrometric Analysis of Thiol Proteins/Peptides Following Selenamide Derivatization And Electrolytic Reduction of Disulfide Bonds." Ohio University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1347395762.

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31

Kakita, Hirotaka. "Development and Application of Microanalytical Methods of Carbohydrates by High-performance Liquid Chromatography with Postcolumn Derivatization." Kyoto University, 2009. http://hdl.handle.net/2433/123975.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第14663号<br>農博第1745号<br>新制||農||968(附属図書館)<br>学位論文||H21||N4436(農学部図書室)<br>UT51-2009-D375<br>京都大学大学院農学研究科食品生物科学専攻<br>(主査)教授井上國世, 教授安達修二, 教授入江一浩<br>学位規則第4条第1項該当

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32

Kern, Fredy [Verfasser], and Rita [Akademischer Betreuer] Bernhardt. "Myxobacterial P450s as drug metabolizers : derivatization and metabolite production of drugs / Fredy Kern. Betreuer: Rita Bernhardt." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2016. http://d-nb.info/1109790236/34.

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33

Narreddula, Venkateswara Reddy. "Development of novel derivatization reagents for analysis of isomeric fatty acids by liquid chromatography-mass spectrometry." Thesis, Queensland University of Technology, 2020. https://eprints.qut.edu.au/136811/1/Venkateswara%20Reddy_Narreddula_Thesis.pdf.

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This project was a step forward in 'developing next-generation derivatization reagents for photodissociation mass spectrometry', an emerging mass spectrometry activation method for structural elucidation of lipid biomolecules. The method involves synthesis of photo labile derivatization reagents, derivatization with fatty acids and photodissociation of derivatives using 266 nm laser to elucidate subtle features of fatty acids. The thesis investigated the utility of fixed charge photo labile derivatives for identifying unusual fatty acids from lipid extract of vernix caseosa, and optimization o

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34

Turnquest, Britt E. "Rapid Inline Derivatization of Primary and Secondary Amine Containing Drugs by Capillary Electrophoresis with Laser-Induced Fluorescence." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/998.

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Despite the ongoing “war on drugs” the seizure rates for phenethylamines and their analogues have been steadily increasing over the years. The illicit manufacture of these compounds has become big business all over the world making it all the more attractive to the inexperienced “cook”. However, as a result, the samples produced are more susceptible to contamination with reactionary byproducts and leftover reagents. These impurities are useful in the analysis of seized drugs as their identities can help to determine the synthetic pathway used to make these drugs and thus, the provenance of the

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35

Mwenesongole, Ellen Musili. "Simultaneous detection of drugs of abuse in waste water using gas chromatography-mass spectrometry." Thesis, Anglia Ruskin University, 2015. http://arro.anglia.ac.uk/550378/.

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Sewage epidemiology is increasingly becoming an alternative method of estimating drug usage and consumption patterns for a given population. With the constant emergence of new psychoactive substances such as cathinones and piperazines, versatile, reliable, specific and sensitive analytical methods are needed for their detection in complex matrices such as waste water. This thesis reports the development of an analytical method based on solid phase extraction, derivatization with pentafluoropropionic anhydride and analysis by gas chromatography-mass spectrometry for the simultaneous analysis of

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36

Cui, Wenge Cui Wenge. "Part 1, Glyoxal-guanine DNA adducts, derivatization, structure, stability and new detection methodology ; Part 2, Nitrosation studies of oxazolines and imidazolines and the synthesis of N-cyclopropyl aromatic amines /." free to MU campus, to others for purchase, 2000. http://wwwlib.umi.com/cr/mo/fullcit?p9998477.

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37

Lampinen, Salomonsson Matilda. "Chemical Derivatization in Combination with Liquid Chromatography Tandem Mass Spectrometry for Detection and Structural Investigation of Glucuronides." Doctoral thesis, Uppsala University, Analytical Pharmaceutical Chemistry, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-8670.

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<p>This thesis presents novel approaches for structural investigation of glucuronides using chemical derivatization in combination with liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS<sup>n</sup>).</p><p>Today, LC-ESI-MS<sup>n</sup> is the dominant technique for quantitative as well as qualitative analyses of metabolites, due to its high sensitivity and selectivity. However, for compounds without an easily ionizable group, e.g., steroids, the sensitivity is limited. In the work presented in this thesis, a derivatization procedure forming a basic oxime signific

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Veinot, Jonathan G. C. "Surface functionalization and derivatization of 25 A cadmium sulfide nanoclusters : a study of potential molecular electronic components /." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://wwwlib.umi.com/cr/yorku/fullcit?pNQ43453.

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Thesis (Ph.D.)--York University, 1999. Graduate Programme in Chemistry.<br>Typescript. Includes bibliographical references (leaves 155-161). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://wwwlib.umi.com/cr/yorku/fullcit?pNQ43453

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Marmor, Stephen. "Peroxide oxidation and derivatization of myoglobin." Thesis, 1992. http://spectrum.library.concordia.ca/3911/1/MM87276.pdf.

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40

Yu, Cheng-Ying, and 余政穎. "Derivatization-gas chromatographic determination of enalapril." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/93516443320601396168.

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碩士<br>高雄醫學大學<br>藥學研究所<br>88<br>英文摘要 A capillary gas chromatographic method is described for the determination of enalapril, an angiotension-converting enzyme inhibitor (ACEI). The method is based on the derivatization of enalapril with pentafluorobenzyl bromide (PFBBr) in acetone, using potassium carbonate as a base catalyst. Under the mild condition, the highly polar and nonvolatile enalapril was derivatized into a derivative with suitable chromatographic properties. The resulting derivative was separated on an SE-54 capillary column and determined by GC with a flame-ionization det

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盧文奎. "Evaluation of derivatization methods for amphetamines." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/s263u2.

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42

Yeh, Chu-Niang, and 葉朱娘. "Derivatization Liquid Chromatographic Analysis of Glucuronolactone." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/4zw69d.

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碩士<br>高雄醫學大學<br>藥學研究所<br>91<br>Many of multivitamine pharmaceuticals contain glucuronolactone (GL), which was used in the treatment of bilirubinemia because it improve the liver function. In recent report suggest that GL have protective effects against neuron damages and anti-stress effect. A pre-column derivatization system with high performance liquid chromatographic method is described for the determination of GL in multivitamine pharmaceuticals, GL was derivatized with strong chromophore reagent, 2,4-dinitrophenylhydrazine (2,4-DNP), using sulfuric acid as catalyst. The derivati

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Ku, Min-Hong, and 古敏弘. "DERIVATIZATION GAS CHROMATOGRAPHIC DETERMINATION OF CETIRIZINE." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/40171874733871685351.

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碩士<br>高雄醫學大學<br>藥學研究所<br>90<br>A capillary gas chromatographic method is described for the determination of trace cetirizine. The method is based on the derivatization of cetirizine with pentafluorobenzyl bromide in acetonitrile using potassium carbonate as a base catalyst. Under a mild condition, the highly polar and nonvolatile cetirizine was derivatized into derivative with suitable gas chromatographic properties. The derivative of cetirizine was separated on a SE-54 capillary column and detected by a flame-ionization detector. Several parameters affecting the derivatization of c

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chou, yu-wei, and 周育緯. "Derivatization Gas Chromatographic Determination Of Retinoic Acid." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/2n8byh.

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碩士<br>高雄醫學大學<br>藥學研究所<br>91<br>A capillary gas chromatographic method is described for the determination of trace retinoic acid. The method is based on the derivatization of 13-cis-retinoic acid and all-trans-retinoic acid with pentafluorobenzyl bromide in acetone using potassium carbonate as a base catalyst. Under a mild condition, the highly polar and nonvolatile 13-cis-retinoic acid and all-trans-retinoic acid were derivatized into derivatives with suitable gas chromatographic properties. The derivatives of 13-cis-retinoic acid and all-trans-retinoic acid were separated on a SE-54 capillary

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Yang, Chia-Chang, and 楊嘉昌. "Derivatization Gas Chromatographic Determination of Azelaic Acid." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/6nw2ds.

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碩士<br>高雄醫學大學<br>藥學研究所<br>91<br>A capillary gas chromatographic method is described for the determination of azelaic acid. The method is based on the derivatization of azelaic acid with pentafluorobenzyl bromide in acetone using 18-crown-6 ether and potassium carbonate as catalysts. Under a mild condition, the highly polar and nonvolatile azelaic acid was derivatized into derivative with suitable gas chromatographic properties. The derivative of azelaic acid was separated on a SE-54 capillary column and detected by a flame-ionization detector. Several parameters affecting the deri

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WU, XIU-MEI, and 吳秀梅. "Derivatization-gas chromatographic analysis of nalidixic acid." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/27515661942359715207.

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Hung, Tsung-Hung, and 洪宗宏. "Sliver and its transformation,derivatization and extension." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/30163175961559064911.

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碩士<br>國立臺灣藝術大學<br>造形藝術研究所<br>95<br>Abstract The advent of photography has an unprecedented impact on the iconographic systems of visual representation. (i.e. perspectives and anthropotomy) Moreover, Marcel Duchamp’s (1887-1968) “ready-made” further challenges the limits and nature of art making. Art become free to all new ways of interpretation. This paper attempts to investigate the relationship between photographic images in a personal creative process. How could levels of connections in the photographed and the painted surfaces be conjured? My works were initially created from “ Three boy

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Li, Lingling. "Water-soluble bodipys: syntheses, derivatization and photophysical studies." 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2448.

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A set of water-soluble 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) derivatives, has been prepared and their spectroscopic properties examined. These dyes can be used as either donor or acceptor in synthesis of through-bond energy transfer cassettes. Sulfonation conditions were developed for several BODIPY dyes to give the mono-sulfonated and di-sulfonated products. Compounds with an aryl iodide could be used for organometallic couplings. Similarly, BODIPYs with an aromatic bromide, but also two chlorine atoms could be replaced via SNAr reactions. The amine sulfonated BODIPY is amenable

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Waring, Katherine R. "Natural product derivatization through nitroso Diels-Alder reactions." 2007. http://etd.nd.edu/ETD-db/theses/available/etd-10092007-225812/.

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Thesis (M.S.)--University of Notre Dame, 2007.<br>Thesis directed by Marvin J. Miller for the Department of Chemistry and Biochemistry. "October 2007." Includes bibliographical references (leaves 127-130).

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Tsai, Fu-Cheng, and 蔡富丞. "Determination of tranexamic acid by derivatization-gas chromatography." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/93488448581281517846.

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