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Open AccessFeature PaperArticle

Some Applications of a Field Programmable Gate Array Based Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry

Lab-Tools Ltd., Marlowe Innovation Centre, Marlowe Way, Ramsgate CT12 6FA, UK
Appl. Sci. 2020, 10(8), 2714; https://doi.org/10.3390/app10082714
Received: 16 February 2020 / Revised: 17 March 2020 / Accepted: 4 April 2020 / Published: 15 April 2020
(This article belongs to the Special Issue Applications of Low Field Magnetic Resonance)
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 porosities. This paper discusses the use, capabilities and application of a newly available compact NMR time-domain relaxation spectrometer, the Lab-Tools Mk3 NMR Relaxometer & Cryoporometer [Lab-Tools (nano-science), Ramsgate, Kent, UK (2019)]. Being Field Programmable Gate Array based means that it is unusually compact, which makes it particularly suitable for the lab bench-top, in the field and also mobile use. Its use with a variable-temperature NMR probe such as the Lab-Tools Peltier thermo-electrically cooled variable-temperature (V-T) probe is also discussed. This enables the NMRC measurement of pore-size distributions in porous materials, from sub-nano- to over 1 micron sized pores. These techniques are suitable for a wide range of porous materials and also polymers. This instrument comes with a Graphical User Interface (GUI) for control, which also enables both online and offline analysis of the measured data. This makes it is easy to use for material science studies both in the field and in university, research institute, company and even school laboratories. The Peltier cooling gives the precision temperature control and smoothness needed by NMR Cryoporometry, particularly near the probe liquid bulk melting point. Results from example NMR Relaxation and NMR Cryoporometric measurements are given. View Full-Text
Keywords: time-domain; nmr relaxation; nmr cryoporometry; fpga; field programmable gate array; benchtop; nmr mouse; digital RF; variable temperature; v-t; polymer; pore-size time-domain; nmr relaxation; nmr cryoporometry; fpga; field programmable gate array; benchtop; nmr mouse; digital RF; variable temperature; v-t; polymer; pore-size
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MDPI and ACS Style

Webber, J.B.W. Some Applications of a Field Programmable Gate Array Based Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry. Appl. Sci. 2020, 10, 2714. https://doi.org/10.3390/app10082714

AMA Style

Webber JBW. Some Applications of a Field Programmable Gate Array Based Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry. Applied Sciences. 2020; 10(8):2714. https://doi.org/10.3390/app10082714

Chicago/Turabian Style

Webber, J. B.W. 2020. "Some Applications of a Field Programmable Gate Array Based Time-Domain Spectrometer for NMR Relaxation and NMR Cryoporometry" Appl. Sci. 10, no. 8: 2714. https://doi.org/10.3390/app10082714

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