Results 31 to 40 of about 4,176 (138)
Journal of Magnetic Resonance OpenThe use of hyperpolarized media in combination with benchtop NMR spectrometers is currently extensively investigated to enable cost effective but highly sensitive applications.
Wolfgang Kilian +3 more
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Scientific Reports, 2021 The polyphenol content and antioxidant capacity of hyperforin and hypericin-standardized H. perforatum L. extracts may vary due to the harvest time. In this work, ethanol and ethanol–water extracts of air-dried and lyophilized flowers of H. perforatum L.,
Katerina Makarova +9 more
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Discovery and validation of an NMR-based metabolomic profile in urine as TB biomarker
Scientific Reports, 2020 Despite efforts to improve tuberculosis (TB) detection, limitations in access, quality and timeliness of diagnostic services in low- and middle-income countries are challenging for current TB diagnostics.
José Luis Izquierdo-Garcia +21 more
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Applied SciencesHerein we report the very first experiments which were conducted in an attempt to demonstrate the ability of low-field (LF), compact benchtop NMR spectrometers to provide spectral profiles of whole human biofluids, which took place in September–November ...
Martin Grootveld +3 more
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Functional group resolved NMR relaxation of 3-carbon adsorbates in mesoporous alumina
Magnetic Resonance Letters, 2023 NMR relaxation analysis provides a unique and non-invasive probe of fluid dynamics within porous materials, and may be applied to the interpretation of a wide variety of material and interfacial characteristics.
Neil Robinson +2 more
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Energy Reports, 2022 Natural gas is an essential energy source for a large variety of applications in today’s society. Forecasts predict that it will also play a vital role in decarbonizing the energy sector.
Anton Duchowny +9 more
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A pH-enhanced resolution in benchtop NMR spectroscopy
The AnalystAn alternative to serial NMR measurement on a benchtop machine exploits a pH gradient along the NMR tube and mechanical sample shifting. This approach allows one to detect and characterize “pH-sensitive” peaks.
Paulina Putko +2 more
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Ultrafast 2D benchtop NMR spectroscopy enhanced by flow Overhauser dynamic nuclear polarization
Journal of Magnetic Resonance OpenBenchtop Nuclear Magnetic Resonance (NMR) spectroscopy is a powerful analytical technique for the monitoring of reactions and processes due to its accessibility and lower cost compared to high-field NMR.
Joris Mandral +5 more
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MethodsX, 2023 We present a method for analysing the lipophilic fraction extracted from ground coffee beans using 60 MHz proton (1H) NMR spectroscopy. In addition to the triglycerides from coffee oil, spectral features are seen from a range of secondary metabolites ...
Y. Gunning, M. Defernez, E.K. Kemsley
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A reliable external calibration method for reaction monitoring with benchtop NMR
Magnetic Resonance in Chemistry, 2023 Abstract Nuclear magnetic resonance (NMR) spectroscopy is a powerful analytical technique with the ability to acquire both quantitative and structurally insightful data for multiple components in a test sample.
Tristan Maschmeyer +6 more
openaire +4 more sources