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  Quantification Studies in continuous-flow 13C Nuclear Magnetic Resonance Spectroscopy by Use of Immobilized Paramagnetic Relaxation Agents

Fischer, H., Seiler M, Ertl TS, Eberhardinger U, Bertagnolli H, Schmitt-Willich, H., & Albert, K. (2003). Quantification Studies in continuous-flow 13C Nuclear Magnetic Resonance Spectroscopy by Use of Immobilized Paramagnetic Relaxation Agents. J. Phys. Chem. B, 107(20), 4879-4886. doi:10.1021/jp021631d.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-DD74-9 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0013-DD75-7
Genre: Journal Article

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Fischer, H1, Author              
Seiler M, Ertl TS, Eberhardinger U, Bertagnolli H, Schmitt-Willich, H, Author
Albert, K, Author
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1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              

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 Abstract: Different types of immobilized free radicals as well as immobilized paramagnetic gadolinium(III) complexes were synthesized and used as relaxation agents to shorten the spin-lattice relaxation times T1 of analytes in quantitative continuous-flow 13C nuclear magnetic resonance spectroscopy (NMR). The immobilized paramagnetic relaxation agents were characterized with electron paramagnetic resonance spectroscopy (EPR) and extended X-ray absorption fine structure spectroscopy (EXAFS). With these types of paramagnetic relaxation agents, it was possible to obtain a 4-fold increase in signal-to-noise ratio per unit time, and an almost quantitative NMR spectra in continuous-flow 13C NMR spectroscopy could be acquired with this method.

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 Dates: 2003
 Publication Status: Published in print
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Title: J. Phys. Chem. B
Source Genre: Journal
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Pages: - Volume / Issue: 107 (20) Sequence Number: - Start / End Page: 4879 - 4886 Identifier: -