Abstract:
An apparatus, such as a flow cytometer, for determining compositional properties of a material (38), comprises sensing means (24) having an output responsive to components of interest within a sample, here liquid (38), at a measurement location (22). A flow regulator, such as a pump (36), is provided in flow communication with the measurement location (22) and with the liquid sample (38). Control means (34) is adapted to analyse, such as by employment of an pulse height analyser (32), the output to determine a contribution thereto by noise and to control the operation of the flow regulator (36) to regulate presentation of the sample, here the flow rate, at the measurement location (22) in a manner dependent on the determined noise contribution.
Abstract:
A filtration system for a liquid comprising a container (2) having an internal container volume (11), a particulate filter portion (10) for allowing passage of the liquid into the internal container volume (11) to forma liquid sample aliquot and a first opening (14) providing access to the internal container volume (11); the filtration system further comprising a non-porous housing (4) configured to provide an internal space (28) for receiving the container (2), the internal space (28) being dimensioned to provide a volume such that the amount left unoccupied by the received container (2) is less than the internal container volume (11).
Abstract:
A system for the measurement of free and bound SO2 in a liquid beverage product sample comprising a sample container having a volume sufficient to provide a headspace above the sample into which a gas can pass; a gas flow system adapted to extract gas from the headspace and recirculating it back into the liquid volume; a measurement system configured to monitor a time dependent evolution of SO2 in gas from the gas flow system; and a dosing apparatus fluidly connected to the container to supply an hydrolysis reagent thereto. A heater unit is provided for supplying thermal radiation into the container to elevate the temperature of sample therein sufficient to facilitate the hydrolysis reaction and a signal processor operates to deconvolute the monitored evolution to generate an indication of the concentration of each of the free SO2 and the total SO2 content of the sample.
Abstract:
An apparatus, such as a flow cytometer, for determining compositional properties of a material (38), comprises sensing means (24) having an output responsive to components of interest within a sample, here liquid (38), at a measurement location (22). A flow regulator, such as a pump (36), is provided in flow communication with the measurement location (22) and with the liquid sample (38). Control means (34) is adapted to analyse, such as by employment of an pulse height analyser (32), the output to determine a contribution thereto by noise and to control the operation of the flow regulator (36) to regulate presentation of the sample, here the flow rate, at the measurement location (22) in a manner dependent on the determined noise contribution.
Abstract:
The invention covers a method of determining fat in a sample, a Soxhlet sample container and a means of filtration (120, 220, 320, 420) for use in a Soxhlet sample container characterised in that said means of filtration is configured to, support hydrolysis by allowing an unaided flow of acid, base and water while retaining fat and to support extraction of fat by allowing an unaided flow of solvent and fat solubilised in solvent.
Abstract:
The invention relates to an automated system (100; 200) and a method (300; 400) for performing analysis on a sample. The sample may e.g. be of grain, foodstuff or feed and the analysis may be for measuring the concentration of one or more specific constituents which might affect the quality of the grain, foodstuff or feed. Such constituents could e.g. be mycotoxins, such as deoxynivalenol, zearalenone, ochratoxin, fumonisin, aflatoxin, and 1-2 toxin, and/or enzymes such as amylase in general, or alpha-amylase in specific. The system (100; 200) comprises containers (10; 12; 14; 16) for the sample and for liquids used during the measurements. The container (10) for the sample comprises grinding means (20) for grinding the sample and inlet means (11 ) for inletting solvent liquid from another container (12), preferably during the grinding so as to speed up the extraction of constituents from the first sample. The system (100, 200) moreover comprises a sensor (50) for measuring the concentration of the one or more specific constituents, which may be a biosensor or another type of biosensing system.
Abstract:
A filtration system for a liquid comprising a container (2) having an internal container volume (11), a particulate filter portion (10) for allowing passage of the liquid into the internal container volume (11) to form a liquid sample aliquot and a first opening (14) providing access to the internal container volume (11); the filtration system further comprising a non-porous housing (4) configured to provide an internal space (28) for receiving the container (2), the internal space (28) being dimensioned to provide a volume such that the amount left unoccupied by the received container (2) is less than the internal container volume (11).
Abstract:
A system for the measurement of free and bound SO 2 in a liquid beverage product sample comprising a sample container (10) having a volume sufficient to provide a headspace (14) above the sample (12) into which a gas can pass; a gas flow system (6) adapted to extract gas from the headspace (14) and recirculating it back into the liquid volume (12); a measurement system (4) configured to monitor a time dependent evolution of SO 2 in gas from the gas flow system (6); and a dosing apparatus (8) fluidly connected to the container (10) to supply an hydrolysis reagent thereto. A heater unit (3) is provided for supplying thermal radiation into the container (10) to elevate the temperature of sample therein sufficient to facilitate the hydrolysis reaction and a signal processor (30) operates to deconvolute the monitored evolution to generate an indication of the concentration of each of the free SO 2 and the total SO 2 content of the sample.
Abstract:
Apparatus for Determining Compositional Properties of a Material An apparatus, such as a flow cytometer, for determining compositional properties of a material (38), comprises sensing means (24) having an output responsive to components of interest within a sample, here liquid (38), at a measurement location (22). A flow regulator such as a pump (36) is provided in flow communication with the measurement location (22) and with the liquid sample (38). Control means (34) is adapted to analyse, such as by employment of an pulse height analyser (32), the output to determine a contribution thereto by noise and to control the operation of the flow regulator (36) to regulate presentation of the sample, here the flow rate, at the measurement location (22) in a manner dependent on the determined noise contribution.