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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 /Tang, Jianhua. January 2009 (has links)
Thesis (Ph. D.)--Cleveland State University, 2009. / 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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Liquid chromatography-mass spectrometry platforms hyphenated with coulometric array and microscale nuclear magnetic resonance detection a dissertation /Schiavo, Susan. January 1900 (has links)
Thesis (Ph. D.)--Northeastern University, 2009. / Title from title page (viewed June 4, 2009). Graduate School of Arts and Sciences, Dept. of Chemistry and Chemical Biology. Includes bibliographical references.
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Development and application of an on-line liquid chromatography interface for the analysis of biomolecules by Fourier transform ion cyclotron resonance mass spectrometry /Harper, Carla Jo, January 1998 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 1998. / Vita. Includes bibliographical references (leaves 183-195). Available also in a digital version from Dissertation Abstracts.
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LC - ¹³C NMR utilizing dynamic nuclear polarization (DNP) for signal enhancement /Stevenson, Steven Alan, January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 137-145). Also available via the Internet.
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Surface properties of antibodies and their complexes with antigens studies by LLPCWingren, Christer. January 1997 (has links)
Thesis (doctoral)--Lund University, 1997. / Added t.p. with thesis statement inserted.
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In vitro release of ketoprofen from proprietary and extemporaneously manufactured gels /Tettey-Amlalo, Ralph Nii Okai. January 2005 (has links)
Thesis (M. Sc. (Pharmacy))--Rhodes University, 2006.
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Evaluation of the safety and efficacy of topical mometasone furoate formulations /Chamboko, Bernadett Vongayi. January 2007 (has links)
Thesis (M.Sc. (Pharmacy)) - Rhodes University, 2007.
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Evaluating the effective peak capacity of a saw-tooth gradient for reverse-phase high performance liquid chromatography separation of proteins and peptidesCai, Guimei, January 2007 (has links)
Thesis (M.S.)--West Virginia University, 2007. / Title from document title page. Document formatted into pages; contains viii, 59 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 54-56).
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Microfabricated chromatographic instrumentation for micro total analysis systems /McBrady, Adam Dewey. January 2006 (has links)
Thesis (Ph. D.)--University of Washington, 2006. / Vita. Includes bibliographical references (leaves 116-131).
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Detection methods of organic acid in steam/water circuits and optimisation using HPLC-UVRamrung, Arthi January 2009 (has links)
Dissertation presented in partial compliance with the requirements for the Masters Degree in Technology: Chemistry, Durban University of Technology, 2009. / This study was mainly a response to a challenge faced by ESKOM in its coal-fired power
stations. In spite of using high purity water to drive the turbines, the latter were damaged by
‘pitting’, possibly related to acids generated at high temperatures. In the light of this a
relatively simple method for determination of short chain organic acids was identified by
comparing the efficacies of several methods. It was found that high performance liquid
chromatography (HPLC) method preceded by derivatization (with o-nitrophenyl hydrazine)
is suitable for analyzing mixtures of simple acids at ppb levels.
Calibration was effected by using methanoic acid (formic acid), ethanoic acid (acetic acid),
propanoic acid (propionic acid) and butanoic acid (butyric acid). The HPLC instrument used
was from Thermo Separations with P2000 pump, SN 4000 interface and UV1000 with a
column heater. A comparative study between the HPLC methods using ion exclusion and
partition chromatography was carried out in order to find a suitable method that can be used
with aqueous environmental samples. The two essential columns that were used were ion
exclusion Phenomenex Rezex OA column and a Nucleodur C8 column.
The method of partition chromatography using a C8 column showed the most success using a
mobile phase consisted of acidified water using HCl (pH4.5) along with a 60:40
Acetonitrile/Methanol mixture. Both isocratic and gradient programs were utilized. Limits of
detection were improved from 800ppb (formic acid), 480ppb (acetic), 350ppb (propionic) and
680ppb (butyric acid) to 25ppb (acetic), 60ppb (propionic) and 90ppb (butyric).
Samples used in analysis were collected from the main stream, economiser, condensers,
polishing plant and turbines of the Tutuka Power Station in Mpumalanga province and
analysed using with final developed method / Eskom Tertiary Support Programme. Durban University of Technology
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