Some embodiments are related to a portable or stationary system for determining the quality of processed food product. The system can be hand handled by a user, located on a production line or placed a laboratory. The system can include a Nuclear Magnetic Resonance (NMR) spectrometer and a controller. The controller can be configured to: receive an NMR spectrum of the processed food product from the NMR spectrometer, identify a first peak related to a first component of the processed food product from the received NMR spectrum and determine the quality of the processed food product based on the identification. The controller may further configured to control parameters of the production line based on the determined quality.

A lubricant base oil is provided. The lubricant base oil has a low temperature property determined using a stepwise regression of carbon-13 nuclear magnetic resonance (NMR) spectroscopy peak values. A method of selecting candidate lubricant base oils, or mixtures thereof, having acceptable low temperature performance is also provided. An online method of blending a lubricant base oil and a finished lubricant are also provided.

The invention relates to a system and methods for measuring and determining a characteristic of veneer with NMR spectroscopy in the serial production of veneer, wherein the measurement is taken as online measurement steps from veneer, the measurement steps comprising: creating a magnetic field with two magnets located on the opposite sides of veneer relative to the veneer and opposite to each other, and exposing hydrogen protons in water to the magnetic field for a time required by excitation of protons either by dimensioning the magnetic field in the travel direction of veneer to a sufficient range with respect to excitation of protons relative to the movement speed of the veneer or by moving the magnet and the magnetic field created by it in the travel direction of the veneer during the measurement, and determining veneer moisture distribution based on said amplitude and relaxation time of the backward signal.

Disclosed herein are methods of preparing a composition comprising crystalline biomolecules, for example, crystalline antibodies. In exemplary embodiments, the method comprises forming a fluidized bed of crystalline biomolecules using, for example, a counter-flow centrifuge to exchange buffer and/or to concentrate the crystalline biomolecules in a solution. Also provided are methods of detecting crystalline biomolecules and/or amorphous biomolecules in a sample.

A method of using the transverse relaxation rate (R.sub.2) of solvent NMR signal to noninvasively assess if an alum-containing product, such as a vaccine, has been acceptably resuspended for use following transport and/or storage. This technique allows for the manufacturer and/or distributor and/or end user to monitor for unexpected stressors associated with transport and/or storage including, but not limited to, temperature fluctuations, pH changes, vigorous shaking during transportation, exposure to sunlight, and freezing.

Disclosed is a system and method for sorting copper-bearing ore to select portions having a target copper content. The system includes an analysis and selection station including first magnetic resonance analyzer measuring the copper content of input ore and a controlled diverter to divert portions of the input ore to a collection path when the copper content meets or exceeds a predetermined cut-off value. The predetermined cut-off is adjusted by a controller in response to the first magnetic resonance analyzer. A second magnetic resonance analyzer measures the copper content of the ore in a product path. That measurement is fed back to the controller to fine tune the adjusted cut-off value above, up or down, to optimize the yield of ore having the targeted copper content. The system may include a station for sizing the input ore, a station for sizing the output ore, and a station for sizing waste produced by the system.

A magnetic resonance apparatus is described for detecting at least one property of a sample, which may include a foodstuff. The magnetic resonance apparatus comprises a magnet unit, which comprises a base magnet and a RF antenna unit, a sample receiving area at least partially surrounded by the magnet unit, and a transport apparatus for introducing at least one sample into the sample receiving area. The magnetic resonance apparatus comprises an radio frequency (RF) shielding unit, which shields the sample receiving area from the outside, such as a region external to the magnetic resonance apparatus.

An apparatus is provided for on-line detection of magnetic resonance signals from a target in a mineral slurry. The apparatus comprises (i) an electrically conductive housing, (ii) an electrically non-conducting (ENC) pipe to enable throughput of a mineral slurry and configured to pass through the electrically conductive housing, (iii) a first primary coil configured to encircle a section of the ENC pipe within the housing, the or each primary coil defining a measurement zone, (iv) a capacitor unit coupled to a terminal of the or each respective primary coil, where a value of each capacitor unit value is selectable so that a primary coil series resonance is formed close to the value of the magnetic resonance frequency of the target, (v) an RF transmitter operable to transmit a signal to one or more drive coil electrical networks, where an operating frequency of the RF transmitter is set approximately equal to the magnetic resonance frequency of the target, (vi) at least a first drive coil and an associated drive coil electrical network, where the number of drive coils equals the number of primary coils, and where each drive coil and associated drive coil electrical network is positioned relative to a single primary coil to magnetically couple said drive coil to said primary coil, (vii) an impedance monitor coupled to each drive coil electrical network and operable to measure a complex input impedance of said drive coil electrical network; and (viii) an RF receiver adapted to receive from the first or each drive coil electrical network, magnetic resonance signals from the target, the RF receiver forming an output signal of detected signals.

Disclosed is a method for determining fibre porosity in a fibre suspension. A sample is taken from a fibre suspension and fibre porosity determination is performed by determining the ratio of fibre-internal water to fibre-external bound water as an online measurement using a NMR spectroscope in successive steps of: generating a magnetic field for exciting protons of water contained in the sample; exciting water molecules of fibre suspension contained in the sample with a frequency pulse provided by a coil; measuring a return signal of the frequency pulse that returns from water molecules to the coil; determining the proton relaxation time and the amplitude of the return signal from the return signal; and determining fibre porosity of the fibre suspension based on the amplitude and the relaxation time of the exponential return signal. Also disclosed is a device for determining fibre porosity of a fibre suspension and a control system connected to a fibre web machine.

System and method for analyzing changes in a fluid flowing through a conduit, including defining at least one coordinate within said conduit, said conduit having a first plurality of slices, receiving at least one known value for at least one property of the fluid, measuring said fluid using magnetic resonance, determining at least one image from the measured fluid, the at least one image having a second plurality of slices for said at least one coordinate, determining a second set of values for said at least one property of said fluid, comparing the first set of values and second set of values for said at least one property to determine a difference value, checking deviation of the determined difference from a predetermined value for said fluid, and issuing an alert if the deviation is not substantially zero.