1980
DOI: 10.1021/ac50057a032
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Direct coupling of a liquid chromatograph to a continuous flow hydrogen nuclear magnetic resonance detector for analysis of petroleum and synthetic fuels

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Cited by 76 publications
(57 citation statements)
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“…Direct on-line coupling of NMR with HPLC was reported 20 years ago [182][183][184]. The application of this technique had been seriously hampered at first due to the lack of sensitivity.…”
Section: Nuclear Magnetic Resonance Spectroscopymentioning
confidence: 99%
“…Direct on-line coupling of NMR with HPLC was reported 20 years ago [182][183][184]. The application of this technique had been seriously hampered at first due to the lack of sensitivity.…”
Section: Nuclear Magnetic Resonance Spectroscopymentioning
confidence: 99%
“…Typical commercial NMR probe flow cells have an active volume of 60-120 μl and a total volume of about 120-240 μl, which is significantly smaller than that of about 600 μl of conventional 5 mm tubes, and a small fraction of the total reactant volume. Online coupling of NMR spectrometers was first developed with high-pressure liquid chromatography (HPLC) [25][26][27][28][29][30] and supercritical fluid chromatography (SFC) [31], using NMR as an analytical detector with high spectral dispersion. Flow NMR probes were developed, and these have also been used for high-throughput NMR spectroscopy [32,33].…”
Section: Flow and High-pressure Nmr Spectroscopy For Reaction Monitoringmentioning
confidence: 99%
“…20 Foram desenvolvidos dispositivos especiais para a interface da RMN com a cromatografia para possibilitar a polarização da amostra (Figura 2). 21 Atualmente, sistemas de HPLC-RMN estão se tornando comuns em laboratórios de pesquisa para isolamento, detecção, quantificação e/ou identificação de compostos, principalmente em análises de produtos naturais, purificação de drogas e metabólitos em fluidos biológicos. 14,[22][23][24] Pearson et al descreveram um método pulsado para análise de umidade em trigo.…”
Section: Análises Em Fluxo Por Rmn Pulsadaunclassified