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Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compo - Joana Diekmann
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Joana Diekmann:

Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compo - neues Buch

2009, ISBN: 9783640873395

ID: 125865053

Master´s Thesis from the year 2009 in the subject Chemistry - Analytical Chemistry, grade: 1,0, University of Hannover (Anorganische Chemie), language: English, abstract: Separation and identification of mass-limited chemical samples is the key to understand the complex nature of pharmaceutical and environmental systems. High efficiency separation techniques, such as capillary electrophoresis (CE), coupled to a non-destructive, information-rich detection, such as nuclear magnetic resonance (NMR) spectroscopy, have revolutionized the ability to separate and identify components in small sample volumes. Using this hyphenated system, structure elucidation of analytes separated during an electrophoretic process can be performed using NMR as an on-line detector. Although sensitivity remains an issue for on-line NMR detection, capillary NMR spectroscopy using microcoils has emerged as a major breakthrough for increasing the mass-sensitivity of NMR spectroscopy, because the limit of detection is proportional to the coil diameter. A further development is the miniaturization of the magnet enabling the possibility of a truly portable NMR system. This portable, low-cost NMR sensor, coupled to the rapid CE separation system could enable high-throughput and on-site identification of nanoliter amounts of solution. Furthermore, CE can provide on-line pre-concentration via electrokinetic injection or other stacking techniques to increase the sample concentration. In this research, coupling CE to a laboratory-scale NMR and to a portable NMR system are investigated, with the emphasis on the development of the miniaturized system. For the experiments with the large-scale 1H NMR system, a group of selected uric acids and xan- thines are studied since those compounds are representative of various classes of therapeutical drugs. The portable NMR instrument incorporates lithographically patterned microcoils and a small 1.8 T permanent magnet to measure 19F NMR spectra for the analysis of trifluoroacetic acid (TFA) and longer chain perfluorinated carboxylic acids (PFCAs). Our results demonstrate that coupling CE to a portable NMR system is feasible and can provide a low cost method to obtain structural information about the samples of interest. The results confirm that it was possible to acquire congruent sample data using the ultraviolet/visible (UV/VIS) detector of the CE and the 19F NMR detector. To obtain data, CE and NMR conditions were optimized and different modes of data acquisition were investigated. Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compo eBook eBooks>Fremdsprachige eBooks>Englische eBooks>Sach- & Fachthemen>Chemie, GRIN

Neues Buch Thalia.ch
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Diekmann, J: Coupling of Capillary Electrophoresis with Nucl - Joana Diekmann
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)

Joana Diekmann:

Diekmann, J: Coupling of Capillary Electrophoresis with Nucl - neues Buch

2009, ISBN: 9783640873395

ID: 125865053

Master´s Thesis from the year 2009 in the subject Chemistry - Analytical Chemistry, grade: 1,0, University of Hannover (Anorganische Chemie), language: English, abstract: Separation and identification of mass-limited chemical samples is the key to understand the complex nature of pharmaceutical and environmental systems. High efficiency separation techniques, such as capillary electrophoresis (CE), coupled to a non-destructive, information-rich detection, such as nuclear magnetic resonance (NMR) spectroscopy, have revolutionized the ability to separate and identify components in small sample volumes. Using this hyphenated system, structure elucidation of analytes separated during an electrophoretic process can be performed using NMR as an on-line detector. Although sensitivity remains an issue for on-line NMR detection, capillary NMR spectroscopy using microcoils has emerged as a major breakthrough for increasing the mass-sensitivity of NMR spectroscopy, because the limit of detection is proportional to the coil diameter. A further development is the miniaturization of the magnet enabling the possibility of a truly portable NMR system. This portable, low-cost NMR sensor, coupled to the rapid CE separation system could enable high-throughput and on-site identification of nanoliter amounts of solution. Furthermore, CE can provide on-line pre-concentration via electrokinetic injection or other stacking techniques to increase the sample concentration. In this research, coupling CE to a laboratory-scale NMR and to a portable NMR system are investigated, with the emphasis on the development of the miniaturized system. For the experiments with the large-scale 1H NMR system, a group of selected uric acids and xan- thines are studied since those compounds are representative of various classes of therapeutical drugs. The portable NMR instrument incorporates lithographically patterned microcoils and a small 1.8 T permanent magnet to measure 19F NMR spectra for the analysis of trifluoroacetic acid (TFA) and longer chain perfluorinated carboxylic acids (PFCAs). Our results demonstrate that coupling CE to a portable NMR system is feasible and can provide a low cost method to obtain structural information about the samples of interest. The results confirm that it was possible to acquire congruent sample data using the ultraviolet/visible (UV/VIS) detector of the CE and the 19F NMR detector. To obtain data, CE and NMR conditions were optimized and different modes of data acquisition were investigated. Diekmann, J: Coupling of Capillary Electrophoresis with Nucl eBook eBooks>Fremdsprachige eBooks>Englische eBooks>Sach- & Fachthemen>Chemie, GRIN

Neues Buch Thalia.ch
No. 31959099 Versandkosten:DE (EUR 12.47)
Details...
(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Diekmann, J: Coupling of Capillary Electrophoresis with Nucl - Joana Diekmann
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Joana Diekmann:
Diekmann, J: Coupling of Capillary Electrophoresis with Nucl - neues Buch

2009

ISBN: 9783640873395

ID: 125865053

Separation and identification of mass-limited chemical samples is the key to understand the complex nature of pharmaceutical and environmental systems. High efficiency separation techniques, such as capillary electrophoresis (CE), coupled to a non-destructive, information-rich detection, such as nuclear magnetic resonance (NMR) spectroscopy, have revolutionized the ability to separate and identify components in small sample volumes. Using this hyphenated system, structure elucidation of analytes separated during an electrophoretic process can be performed using NMR as an on-line detector. Although sensitivity remains an issue for on-line NMR detection, capillary NMR spectroscopy using microcoils has emerged as a major breakthrough for increasing the mass-sensitivity of NMR spectroscopy, because the limit of detection is proportional to the coil diameter. A further development is the miniaturization of the magnet enabling the possibility of a truly portable NMR system. This portable, low-cost NMR sensor, coupled to the rapid CE separation system could enable high-throughput and on-site identification of nanoliter amounts of solution. Furthermore, CE can provide on-line pre-concentration via electrokinetic injection or other stacking techniques to increase the sample concentration. In this research, coupling CE to a laboratory-scale NMR and to a portable NMR system are investigated, with the emphasis on the development of the miniaturized system. For the experiments with the large-scale 1H NMR system, a group of selected uric acids and xan- thines are studied since those compounds are representative of various classes of therapeutical drugs. The portable NMR instrument incorporates lithographically patterned microcoils and a small 1.8 T permanent magnet to measure 19F NMR spectra for the analysis of trifluoroacetic acid (TFA) and longer chain perfluorinated carboxylic acids (PFCAs). Our results demonstrate that coupling CE to a portable NMR system is feasible and can provide a low cost method to obtain structural information about the samples of interest. The results confirm that it was possible to acquire congruent sample data using the ultraviolet/visible (UV/VIS) detector of the CE and the 19F NMR detector. To obtain data, CE and NMR conditions were optimized and different modes of data acquisition were investigated. Masterarbeit aus dem Jahr 2009 im Fachbereich Chemie - Analytische Chemie, Note: 1,0, Gottfried Wilhelm Leibniz Universität Hannover (Anorganische Chemie), Sprache: Englisch eBook eBooks>Fremdsprachige eBooks>Englische eBooks>Sach- & Fachthemen>Chemie, GRIN

Neues Buch Thalia.ch
No. 31959099 Versandkosten:DE (EUR 12.53)
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(*) Derzeit vergriffen bedeutet, dass dieser Titel momentan auf keiner der angeschlossenen Plattform verfügbar ist.
Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds - Joana Diekmann
Vergriffenes Buch, derzeit bei uns nicht verfügbar.
(*)
Joana Diekmann:
Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds - neues Buch

2009, ISBN: 9783640873395

ID: 9783640873395

Masterarbeit aus dem Jahr 2009 im Fachbereich Chemie - Analytische Chemie, Note: 1,0, Gottfried Wilhelm Leibniz Universität Hannover (Anorganische Chemie), Sprache: Englisch Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds: Masterarbeit aus dem Jahr 2009 im Fachbereich Chemie - Analytische Chemie, Note: 1,0, Gottfried Wilhelm Leibniz Universität Hannover (Anorganische Chemie), Sprache: Englisch Capillary Electrophoresis Microcoil 1H NMR On-Line CE- NMR Perfluorinated Carboxylic Acids Portable 19F NMR Trifluoroacetic Acid Uric Acids Xanthine, GRIN Verlag

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Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds - Joana Diekmann
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Joana Diekmann:
Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds - neues Buch

ISBN: 9783640873395

ID: 9783640873395

Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds Coupling-of-Capillary-Electrophoresis-with-Nuclear-Magnetic-Resonance-Spectroscopy-for-the-Analysis-of-Pharmaceutical-and-Environmental-Relevant-Compounds~~Joana-Diekmann Undefined>Undefined>Undefined NOOK Book (eBook), GRIN Verlag GmbH

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Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds
Autor:

Diekmann, Joana

Titel:

Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds

ISBN-Nummer:

9783640873395

Detailangaben zum Buch - Coupling of Capillary Electrophoresis with Nuclear Magnetic Resonance Spectroscopy for the Analysis of Pharmaceutical and Environmental Relevant Compounds


EAN (ISBN-13): 9783640873395
ISBN (ISBN-10): 3640873394
Erscheinungsjahr: 2009
Herausgeber: GRIN Verlag

Buch in der Datenbank seit 17.07.2008 17:05:30
Buch zuletzt gefunden am 01.11.2016 10:23:44
ISBN/EAN: 9783640873395

ISBN - alternative Schreibweisen:
3-640-87339-4, 978-3-640-87339-5

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