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Tesis sobre el tema "Chromatographic analysis"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

McBrady, Adam Dewey. "Microfabricated chromatographic instrumentation for micro total analysis systems /." Thesis, Connect to this title online; UW restricted, 2006. http://hdl.handle.net/1773/8570.

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2

Galindo, Irma C. (Irma Concepcion). "Investigation Into the Causes for the Loss of Resolution in an Ion Chromatograpy Resin." Thesis, North Texas State University, 1988. https://digital.library.unt.edu/ark:/67531/metadc798197/.

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Four mechanisms were considered as possible causes of the loss in resolution for a Dionex CG2 ion chromatography resin: 1) presence of inorganic ions strongly bound to the active sites; 2) adsorption of organic species; 3) physical alterations; and 4) chemical alterations. The instrumental analyses used to gather data were ICP, FT-IR, SEM, solid C-13 NMR and IC. Based on the results, no metal ions are bound to the resin, no organic species are held onto the resin, and no physical change was observable. The cause for the loss of resolution is a strong reduction in the number of active sites in

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3

Prazen, Bryan J. "Development of high speed hyphenated chromatographic analyzers and second order data analysis techniques /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11550.

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4

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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5

Michelsen, Peter J. "Relationship between chromatographic retention and donor and acceptor numbers /." Online version of thesis, 1990. http://hdl.handle.net/1850/10688.

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6

Wong, Victor, University of Western Sydney, of Science Technology and Environment College, and of Science Food and Horticulture School. "A fundamental study towards improving the performance of liquid chromatographic separation." THESIS_CSTE_SFH_Wong_V.xml, 2003. http://handle.uws.edu.au:8081/1959.7/467.

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The three factors of the resolution (Rs)equation(see Equation 1.1)were explored in this thesis. During the course of the research project, an important aim was to explore separation processes that would lead to an increase in productivity without sacrificing Rs. To that end, an increase in the retention factor (k)to enhance Rs was deemed detrimental to the cycle time, hence the production rate, particularly when preparative separations are involved. Consequently the primary objectives were to (i)prepare more efficient columns and (ii)investigate new strategies in manipulating selectivity. The

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7

Wong, Victor. "A fundamental study towards improving the performance of liquid chromatographic separation." Thesis, View thesis, 2003. http://handle.uws.edu.au:8081/1959.7/467.

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The three factors of the resolution (Rs)equation(see Equation 1.1)were explored in this thesis. During the course of the research project, an important aim was to explore separation processes that would lead to an increase in productivity without sacrificing Rs. To that end, an increase in the retention factor (k)to enhance Rs was deemed detrimental to the cycle time, hence the production rate, particularly when preparative separations are involved. Consequently the primary objectives were to (i)prepare more efficient columns and (ii)investigate new strategies in manipulating selectivity. The

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8

Silwal, Indira K. C. "Characterization of Unknown Chemicals Using Gas Chromatography/Fourier Transform Ion Cyclotron Resonance Mass Spectrometry and AB-Initio Calculations." Fogler Library, University of Maine, 2008. http://www.library.umaine.edu/theses/pdf/SilwalIKC2008.pdf.

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9

Allyn, M. Liz. "Indirect photometric chromatography of iodide ion in aqueous solutions /." Online version of thesis, 1987. http://hdl.handle.net/1850/8769.

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10

Brückner, Carsten Albrecht. "Rapid chromatographic analysis using novel detection systems and chemometric techniques /." Thesis, Connect to this title online; UW restricted, 1998. http://hdl.handle.net/1773/11573.

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11

Banyard, Alan Frederick. "Chromatographic and spectroscopic analysis of Erythrina alkaloids." Thesis, Cardiff University, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.284511.

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12

Kang, Jasjit. "The chromatographic and spectrochemical analysis of foodstuffs." Thesis, University of Surrey, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.335390.

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13

Stubbs, Christopher. "High performance liquid chromatographic analysis of erythromycin in serum and urine." Thesis, Rhodes University, 1985. http://hdl.handle.net/10962/d1004581.

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Erythromycin, a macrolide antibiotic used mainly against gram-positive bacteria has been in clinical use since 1952 (1). Previous pharmacokinetic data published on this antibiotic have been derived predominantly from microbiological assay techniques. However, these techniques are relatively imprecise as well as being non-specific and extremely tedious to perform. A novel high performance liquid chromatographic analysis of erythromycin in human serum and urine using U.V. detection at 200 nm and/or electrochemical detection using both an amperometric and a coulometric electrochemical detector is

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14

Cao, Liming. "Protein Separation with Ion-exchange Membrane Chromatography." Link to electronic thesis, 2005. http://www.wpi.edu/Pubs/ETD/Available/etd-050405-174109/.

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15

Wallace, Sheryl Kaye. "Chromatographic and spectroscopic studies of tetraphenylborate radiolysis." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/26209.

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16

Shalliker, Ross Andrew, and mikewood@deakin edu au. "Studies on the behaviour of polystyrene in reversed phase chromatography." Deakin University. School of Sciences, 1992. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051125.112118.

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Polystyrene behaviour in reversed phase high performance liquid chromatography was influenced mainly by the solvent system, but secondary affects were observed depending on the stationary phase. A variety of reversed phase columns were investigated using mobile phase combinations of dichlorom ethane-methanol, dichloromethane-acetonitrile, ethyl acetate-methanol and ethyl acetate-acetonitrile. Several different modes of behaviour were observed depending on the polymer solubility in the solvent system. In the dichloromethane-methanol solvent system, polymer-stationary phase interactions only occ

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17

Ong, Wen-ching. "Characterization of Aquatic Fulvic Acids by Chromatographic Methods." Thesis, University of North Texas, 1990. https://digital.library.unt.edu/ark:/67531/metadc332576/.

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Several chromatographic and spectroscopic techniques were applied to Suwanne River reference fulvic acids (FA) and their permethylated derivatives. Retention mechanisms, structural characteristics, and thermal stabilities of FA and its derivatives and fractions were evaluated.

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18

Willemse, Chandre Monique. "Comprehensive two-dimensional liquid chromatographic analysis of anthocyanins." Thesis, Stellenbosch : Stellenbosch University, 2015. http://hdl.handle.net/10019.1/96675.

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Thesis (PhD)--Stellenbosch University, 2015.<br>ENGLISH ABSTRACT: Anthocyanins are naturally occurring pigments responsible for the colour of many natural products, including grapes and wine. These pigments are important to the food industry and have been recognised for their nutritional value since they play an important role in the reduced risk of various chronic diseases in humans. Anthocyanins also play an important role in the aesthetic perception and quality of red wine. However, due to the large structural diversity of grape-derived anthocyanins and the many derivatives formed from

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19

Wong, Victor. "A Fundamental study towards improving the performance of liquid chromatographic separation /." View thesis, 2003. http://library.uws.edu.au/adt-NUWS/public/adt-NUWS20060428.124908/index.html.

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Thesis (Ph.D.) -- University of Western Sydney, 2003.<br>"A thesis submitted for the degree of Doctor of Philosophy (Science), School of Science, Food and Horticulture, University of Western Sydney, Richmond, New South Wales, Australia. December 2003". CD "attached to back cover of thesis is in Super Video-CD (SVCD) format showing the development of viscous fingering in realtime." Bibliography : leaves 135 - 147.

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20

Christofides, A. "Pyrolysis gas chromatographic analysis of quaternary ammonium compounds." Thesis, Cardiff University, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.304009.

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21

Kalili, Kathithileni Martha. "Comprehensive two-dimensional liquid chromatographic analysis of phenolics." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/85749.

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Thesis (PhD)--Stellenbosch University, 2013.<br>ENGLISH ABSTRACT: Phenolic chemistry is quite complex; natural phenolic compounds vary widely in terms of size and chemical properties. The high structural diversity within this family presents severe analytical challenges. High performance liquid chromatography (HPLC) is the preferred method for phenolic analysis; however, conventional HPLC methods offer limited separation power and often provide incomplete separation of the large number of components present in natural phenolic extracts. Multi-dimensional chromatographic techniques have pr

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22

Cook, Daniel W. "Chemometric Curve Resolution for Quantitative Liquid Chromatographic Analysis." VCU Scholars Compass, 2016. http://scholarscompass.vcu.edu/etd/4362.

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In chemical analyses, it is crucial to distinguish between chemical species. This is often accomplished via chromatographic separations. These separations are often pushed to their limits in terms of the number of analytes that can be sufficiently resolved from one another, particularly when a quantitative analysis of these compounds is needed. Very often, complicated methods or new technology is required to provide adequate separation of samples arising from a variety of fields such as metabolomics, environmental science, food analysis, etc. An often overlooked means for improving analysis is

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23

Johnson, Kevin J. "Strategies for chemometric analysis of gas chromatographic data /." Thesis, Connect to this title online; UW restricted, 2003. http://hdl.handle.net/1773/8513.

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24

Mabakane, Elizabeth Nontombi. "The determination of distribution coefficient for some elements on the macroporous cation exchanger Amberlyst 15 using nitric acid – methanol mixtures." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2329.

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Thesis (MTech (Chemistry))--Cape Peninsula University of Technology, 2016.<br>The main purpose of this study is to understand the application of ion exchange chromatography on separation of charged ions of elements. Ion exchange chromatography is an analytical method, which is used for the separation of elements, quantitation and qualitation. The use of Amberlyst 15 resin as a source of separation for metal ions has been investigated and studies in various academic disciplines such as chemistry and material science. In this research study, Amberlyst 15 resin was investigated in order

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25

Langford, John F. Jr. "Effects of adsorbent structure and adsorption on transport phenomena in ion-exchange chromatography." Access to citation, abstract and download form provided by ProQuest Information and Learning Company; downloadable PDF file, 250 p, 2007. http://proquest.umi.com/pqdweb?did=1251904681&sid=1&Fmt=2&clientId=8331&RQT=309&VName=PQD.

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26

Ashraf-Khorassani, Medhi. "Supercritical fluid chromatography of nitrogen-containing compounds on packed columns." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/49919.

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The separation of basic nitrogen-containing compounds has been investigated via supercritical CO₂ and 1% methanol modified CO₂. Packed columns with the following stationary phases were employed: silica, octadecyl (C₁₈), propylamino (NH₂), and polystyrene-divinyl benzene (PRP). Without modifier the range of basicities which could be eluted increased in the order of silica < PRP < C₁₈ = NH₂. Chromatographic peak shapes and selectivity were much better with propylamino column. Different aromatic amines and azaarenes were successfully separated on both analytical scale and microbore propylamino bo

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27

Reiner, George Allen. "An explosive vapor generator based on capillary gas chromatography." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/39761.

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28

Tang, Jianhua. "Development of a novel gradient chromatofocusing tandem mass spectometry technique for the determination of cationic compounds in biofluids identification of caspace 3 cleavage sites of nhe-1 by high performance liquid chromatography- mass spectrometry /." Cleveland, Ohio : Cleveland State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=csu1247344073.

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Thesis (Ph. D.)--Cleveland State University, 2009.<br>Abstract. Title from PDF t.p. (viewed July 29, 2009). Includes bibliographical references (p. 105). Available online via the OhioLINK ETD Center and also available in print.

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29

Trujillo, Rebollo Andres. "ROLE OF BRILLIANT GREEN ON THE DETECTION AND SEPARATION OF NON-CHROMOPHORIC ANALYTES BY REVERSED-PHASE LIQUID CHROMATOGRAPHY (DIMERIZATION)." Thesis, The University of Arizona, 1985. http://hdl.handle.net/10150/275434.

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30

Cochran, Keith Jacob. "Combined fermentation and recovery using expanded bed chromatography." Worcester, Mass. : Worcester Polytechnic Institute, 2006. http://www.wpi.edu/Pubs/ETD/Available/etd-081806-184321/.

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31

Ovenden, Simon P. B. "Preparation of a natural product extract library for investigation against disease states specific to defence health a mini long range research project /." Fishermans Bend Victoria : Defence Science and Technology Organisation, 2009. http://hdl.handle.net/1947/9861.

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32

Hider, Gregg C. "High-performance liquid chromatographic analysis of commonly used drugs /." Online version of thesis, 1988. http://hdl.handle.net/1850/10693.

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Thesis (M.S.)--Rochester Institute of Technology, 1988.<br>Includes Addendum: High-performance liquid chromatographic analysis of commonly used drugs: Six laboratory experiments for clinical chemistry students. Includes bibliographical references (leaves 48-52).

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33

Kaplan, Muammer. "Infrared spectroscopy in supercritical fluid analysis." Thesis, University of Nottingham, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.385210.

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34

Zhao, Jie. "Chromatographic analysis of active components in Semen Ziziphi Spinosae." Thesis, University of Macau, 2005. http://umaclib3.umac.mo/record=b1445365.

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35

Madichie, Chinedu Arinze. "The chromatographic analysis of organic compounds in natural waters." Thesis, University of Hull, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310270.

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36

Jennings, Claire. "Chromatographic analysis of recombinant lysostaphin expressed in Escherichia coli." Thesis, Northumbria University, 2011. http://nrl.northumbria.ac.uk/14689/.

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Lysostaphin (EC.3.4.24.75) is an extracellular glycylglycine endopeptidase produced exclusively by Staphylococcus simulans biovar staphylolyticus (ATCC 1362, NRRL B-2628). The zinc-containing endopeptidase demonstrates specific and potent staphylolytic activity therefore shows great promise for the treatment of blood-borne and biofilm-associated staphylococcal infections. The gene encoding mature lysostaphin has therefore been cloned and expressed using Escherichia coli, the most widely used expression host for recombinant protein production. Lysostaphin (EC.3.4.24.75) is an extracellular glyc

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37

Wentzel, Mauritz. "Identification and characterization of novel oncology related platinum complexes using chromatographic and mass spectrometric techniques." Thesis, Nelson Mandela Metropolitan University, 2008. http://hdl.handle.net/10948/715.

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In this thesis mass spectral and chromatographic techniques were developed and applied to identify and characterise numerous novel platinum(II) and (IV) compounds designed as anticancer agents. In a novel method for the synthesis of cis-oxalato(trans- -1,2- cyclohexanediamine)platinum(II) or oxaliplatin these techniques could be applied to differentiate between the molecular complex and the autoionised analogue (viz. Ptdach2 2+Ptox2 2-). In another novel synthetic method for the same compound the ligand exchange reactions at various temperatures could be investigated and kinetic curves obtaine

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38

Cooper, Mark Thomas. "A chromatographic method for detecting phenolic metabolites of carbosulfan in urine." Thesis, Queensland University of Technology, 1989. https://eprints.qut.edu.au/35977/1/35977_Cooper_1989.pdf.

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The inability of the conventional blood cholinesterase test to reliably detect carbamate pesticide poisoning in humans prompted the investigation of an alternative surveillance method. Rapid, micro-scale sample treatment procedures were developed to extract the phenolic metabolites of carbosulfan from urine, convert these compounds to their dinitrophenyl ether derivatives and determine their concentrations quantitatively by nitrogen selective gas-liquid chromatography. This method was capable of detecting micro-gram levels of metabolites and performed to an accuracy of<+/ 10% and pre

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39

Xie, Shunping. "Growth of silver dendrite crystals and liquid chromatographic analysis of water-soluble gold nanoclusters." HKBU Institutional Repository, 2012. https://repository.hkbu.edu.hk/etd_ra/1436.

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40

Mertzman, Melissa Danielle Foley Joe Preston. "Chiral microemulsion electrokinetic chromatography /." Philadelphia, Pa. : Drexel University, 2004. http://dspace.library.drexel.edu/handle/1860/340.

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41

Baker-Ellis, Judy. "High performance liquid chromatography analysis and quantitation of chitinolytic products of CDC group EF-4a." Virtual Press, 1985. http://liblink.bsu.edu/uhtbin/catkey/443555.

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A chitinolytic organism was cultured from a lotic habitat in central Indiana. It was isolated on the basis of its hydrolytic activity on chitin agar. It was subsequently identified as EF-4a. The chitinases of the EF-4a were isolated, purified and concentrated. A colloidal chitin suspension was then incubated with the enzyme. Samplings were taken at one minute, one hour and 24 hours. The samplings were filtered through a Swinney filtration unit and immediately after applied to a Beckman Ultrasil Amino column. It was eluted with acetonitrile: water (75:25) at a flow rate of 2 ml/min. The absorb

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42

Kubiszewski, Jolanta. "Deconvolution of overlapped gas chromatographic peaks with EXCEL : application to three component mixtures /." View abstract, 1998. http://library.ctstateu.edu/ccsu%5Ftheses/1530.html.

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Thesis (M.S.)--Central Connecticut State University, 1998.<br>Thesis advisor: James V. Arena. " ... in partial fulfillment of the requirements for the degree of Master of Science in Chemistry." Includes bibliographical references (leaf 29).

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43

Buica, Astrid Sorina. "Panaceas and pitfalls in electrodriven chromatographic techniques." Thesis, Stellenbosch : University of Stellenboschv, 2007. http://hdl.handle.net/10019.1/1336.

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Thesis (PhD (Chemistry and Polymer Science))--University of Stellenbosch, 2007.<br>In this thesis the main capillary electrodriven chromatographic techniques (i.e. Capillary Electrochromatography CEC, Micellar Electrokinetic Chromatography MEKC and Microemulsion Electrokinetic Chromatography MEEKC) were compared in terms of column manufacturing, fundamental chromatographic performance, and some applications were developed. The first stage of this thesis aimed at developing improved packed and open tubular CEC columns. For the manufacturing of packed CEC columns, the frit-burning step pro

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44

Davis, Kellie M. "Open tubular capillary electrochromatography-laser induced fluorescence for the separation and detection of proteins and amino acids." Greensboro, N.C. : University of North Carolina at Greensboro, 2007. http://libres.uncg.edu/edocs/etd/1513Davis/umi-uncg-1513.pdf.

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Thesis (M.S.)--University of North Carolina at Greensboro, 2007.<br>Title from PDF t.p. (viewed Mar. 11, 2008). Directed by G. Brent Dawson; submitted to the Dept. of Chemistry. Includes bibliographical references (p. 67-69).

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45

Colby, Christopher Brett. "Optimisation of scale-up of chromatography /." Title page, table of contents and abstract only, 1997. http://web4.library.adelaide.edu.au/theses/09PH/09phc686.pdf.

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46

Motley, Curtis Bobby. "The evaluation of an argon and helium highly efficient microwave induced plasma as an element selective detector for packed column super critical fluid chromatography." Diss., Virginia Tech, 1990. http://hdl.handle.net/10919/37740.

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47

Qian, Jianing. "Affinity chromatography of camelid antibodies." Thesis, University of Cambridge, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610171.

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48

Chappell, Colin Graham. "Multidimensional liquid and gas chromatographic methods for veterinary drug analysis." Thesis, University of East Anglia, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.357971.

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49

Bromilow, Ian David. "New liquid chromatographic methods for the analysis of cationic tensides." Thesis, University of Leeds, 2001. http://etheses.whiterose.ac.uk/1674/.

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Cationic tensides are important oleochemicals that are used to prevent adulteration of pharmaceutical preparations and personal care products, as well as being the conditioning agents in domestic fabric softeners. The widespread use of these materials requires quantitative methods for characterising them in raw materials and fully formulated products, whilst "down-the-drain" release necessitates similar methods for trace environmental analysis. Unfortunately, current methods used to quantify cationic tensides are generally non-specific, problematic, or are ill-suited to environmental analysis.

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50

Zhang, Li Qun. "Square-wave voltammetric stripping detection for flow injection analysis and chromatography." Diss., Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/26024.

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