NMR quantification using an artificial signal
| Autor: | Philip J. Sidebottom, Sean M. Lynn, Stefano Provera, Richard J. Upton, John C. Hollerton, Roger D. Farrant |
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| Rok vydání: | 2010 |
| Předmět: |
Signal processing
Magnetic Resonance Spectroscopy Spectrometer Chemistry Analytical chemistry Pulse duration Signal Processing Computer-Assisted General Chemistry Nuclear magnetic resonance spectroscopy Signal Intensity (physics) Heteronuclear molecule Electromagnetic coil General Materials Science Software |
| Zdroj: | Magnetic Resonance in Chemistry. 48:753-762 |
| ISSN: | 0749-1581 |
| Popis: | We have developed QUANTAS (QUANTification by Artificial Signal), which is a software-based protocol for concentration measurement by NMR. QUANTAS is an absolute intensity external standard method for quantification by NMR that compensates for various experimental parameters. It is applicable to all nuclei and modern spectrometers. QUANTAS is demonstrated here for (1)H and (19)F NMR, enabling heteronuclear integrals to be compared. It can be applied using fixed probe tuning, matching and pulse length, for samples with the same effective loading on the probe coil as the appropriate reference spectrum. Otherwise, an optimised tuning and matching approach is adopted for every sample together with explicit PULCON (PUlse Length-based CONcentration measurements) absolute intensity corrections. |
| Databáze: | OpenAIRE |
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