Results 21 to 30 of about 4,176 (138)

Functionalized Controlled Porous Glasses for Producing Radical-Free Hyperpolarized Liquids by Overhauser DNP

open access: yesMolecules, 2022
Overhauser dynamic nuclear polarization (ODNP) can be used as a tool for NMR signal enhancement and happens on very short time scales. Therefore, ODNP is well suited for the measurement of fast-flowing samples, even in compact magnets, which is ...
Raphael Kircher   +3 more
doaj   +1 more source

129Xe ultra-fast Z spectroscopy enables micromolar detection of biosensors on a 1 T benchtop spectrometer [PDF]

open access: yesMagnetic Resonance, 2021
The availability of a benchtop nuclear magnetic resonance (NMR) spectrometer, of low cost and easily transportable, can allow detection of low quantities of biosensors, provided that hyperpolarized species are used.
K. Chighine   +4 more
doaj   +1 more source

On-Site Measurement of Fat and Protein Contents in Milk Using Mobile NMR Technology

open access: yesMolecules, 2022
Robust and easy-to-use NMR sensor technology is proposed for accurate, on-site determination of fat and protein contents in milk. The two parameters are determined using fast consecutive 1H and 35Cl low-field NMR experiments on milk samples upon the 1:1 ...
Morten K. Sørensen   +4 more
doaj   +1 more source

Steady-State Free Precession sequences for high and low field NMR spectroscopy in solution: Challenges and opportunities

open access: yesJournal of Magnetic Resonance Open, 2023
The receptivity of NMR spectroscopy is low when compared to other techniques. Historically, increasing the strength of the static magnetic field has been the major approach to increase NMR sensitivity.
Tiago Bueno Moraes   +5 more
doaj   +1 more source

Using 2D experiments with reverse heteronuclear correlation on a benchtop NMR spectrometer X-Pulse to study the structure of gemfibrozil

open access: yesРазработка и регистрация лекарственных средств, 2021
The article discusses application of two powerful NMR techniques ME-HSQC and HMBC to determine the structure of gemfibrozil molecules as an example on the benchtop NMR spectrometer X-Pulse.

doaj  

Benchtop In Situ Measurement of Full Adsorption Isotherms by NMR [PDF]

open access: yesJournal of the American Chemical Society, 2021
Physisorption using gas or vapor probe molecules is the most common characterization technique for porous materials. The method provides textural information on the adsorbent as well as the affinity for a specific adsorbate, typically through equilibrium pressure measurements.
Marreiros, Joao   +5 more
openaire   +2 more sources

RotoMate: An open-source, 3D printed autosampler for use with benchtop nuclear magnetic resonance spectrometers

open access: yesHardwareX, 2021
Benchtop nuclear magnetic resonance (NMR) spectrometers are versatile analytic instruments with low acquisition and operation cost. However, in the basic version, samples must be manually measured one after the other.
Marco Dyga   +2 more
doaj   +1 more source

Digitally Based Precision Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry

open access: yesMicro, 2023
NMR Relaxation (NMRR) is an extremely useful quantitative technique for material science, particularly for studying polymers and porous materials. NMR Cryoporometry (NMRC) is a powerful technique for the measurement of pore-size distributions and total ...
John Beausire Wyatt Webber, Pavel Demin
doaj   +1 more source

Micromolar Concentration Affinity Study on a Benchtop NMR Spectrometer with Secondary 13C Labeled Hyperpolarized Ligands [PDF]

open access: yesACS Omega
Olivier Cala   +13 more
doaj   +2 more sources

Benchtop NMR analysis of piperazine‐based drugs hyperpolarised by SABRE [PDF]

open access: yesMagnetic Resonance in Chemistry, 2020
AbstractPiperazine‐based drugs, such as N‐benzylpiperazine (BZP), became attractive in the 2000s due to possessing effects similar to amphetamines. Herein, BZP, in addition to its pyridyl analogues, 2‐, 3‐, and 4‐pyridylmethylpiperidine (2‐PMP, 3‐PMP, and 4‐PMP respectively) was subjected to the hyperpolarisation technique Signal Amplification By ...
Thomas Tennant   +4 more
openaire   +4 more sources

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