Compact and portable low-field pulsed NMR dispersion analyzer

Electricity: measuring and testing – Particle precession resonance – Using well logging device

Reexamination Certificate

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C324S321000

Reexamination Certificate

active

07417426

ABSTRACT:
A compact and integrated portable device is provided for the analysis of dispersions by low-field pulsed NMR including: an NMR probe module, a means for generating radio frequency and magnetic field gradient pulses, a signal processor, and a master controller. Also provided are methods for using the device to measure one or more characteristics of phases or particles comprising a dispersion such as surface area, solid/liquid ratio, particle size, and elemental analysis.

REFERENCES:
patent: 4389613 (1983-06-01), Brown
patent: 4480227 (1984-10-01), Brown
patent: 5602477 (1997-02-01), McCarthy et al.
patent: 6278891 (2001-08-01), Reiderman et al.
patent: 6285901 (2001-09-01), Taicher et al.
patent: 6479994 (2002-11-01), Hills et al.
Denkova et al., “Evaluation of the Precision of Drop-Size Determination in Oil/Water Emulsions by Low-Resolution NMR Spectroscopy”, Langmuir 2004 20:11402-11413.
Martin et al., “The NMR Mouse: Its Applications to Food Science”, Magnetic Resonance in Foods Science:Latest developments, edited by P.S. Belton, Royal Society of Chemistry 2003 pp. 54-61.
Packer et al. “Pulsed NMR Studies of Restricted Diffusion”, Journal of Colloid and Interface Sciences 1972 40 (2):206-218.
Shanks et al., “Miniature magnet assembly for NMR-ESR spectroscopy”, Am. J. Phys. 1980 48(8):620-622.
Goudappel et al., “Measurement of Oil Droplet Size Distribution in Food Oil/Water Emulsions by Time Domain Pulsed Field Gradient NMR”, Journal of Colloid and Interface Sciences 2001 239:535-542.
Stejskal et al., “Spin Diffusion Measurements: Spin Echoes in the Presence of a Time-Dependent Field Gradient”, J. Chemical Physics 1965 42(1):288-292.
Van Den Enden et al., “Rapid Determination of Water Droplet Size Distributions by PFG-NMR”, Journal of Colloid and Interface Sciences 1990 140(1):105-113.

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