A configuration is provided in which outside air is taken as a carrier gas into a carrier gas flow path (A, B). A CO.sub.2 sensor (specific gas detection sensor) (71) for detecting a CO.sub.2 gas desorbed from a sample is installed in a component gas detector (70). A CO.sub.2 sensor (air-containing specific gas detection sensor) (54) for detecting a CO.sub.2 gas contained in air taken into the carrier gas flow path by a blower fan (51) is installed separately. A CO.sub.2 gas detection amount detected by the air-containing specific gas detection sensor (54) is subtracted from a CO.sub.2 gas detection amount detected by the specific gas detection sensor (71) to calculate a detection amount of the CO.sub.2 gas desorbed from the sample.

A configuration is provided in which outside air is taken as a carrier gas into a carrier gas flow path (A, B). A CO.sub.2 sensor (specific gas detection sensor) (71) for detecting a CO.sub.2 gas desorbed from a sample is installed in a component gas detector (70). A CO.sub.2 sensor (air-containing specific gas detection sensor) (54) for detecting a CO.sub.2 gas contained in air taken into the carrier gas flow path by a blower fan (51) is installed separately. A CO.sub.2 gas detection amount detected by the air-containing specific gas detection sensor (54) is subtracted from a CO.sub.2 gas detection amount detected by the specific gas detection sensor (71) to calculate a detection amount of the CO.sub.2 gas desorbed from the sample.

A method and device for processing an agricultural product is provided. The device includes a chamber having an opening, and a heater operative to heat the contents of the chamber. A sensor having an output is coupled to the chamber, the sensor output being processed to provide information about at least one of: a state of decarboxylation, or a quantity of a material in the contents of the chamber. The method includes loading a quantity of the agricultural product in a chamber having an port and applying an elevated temperature to the chamber to increase a rate of decarboxylation. A property of a gas is measured at the port the measurement being processed to determine one of either: a state of decarboxylation, or a quantity of material in the sample.

A method and device for processing an agricultural product is provided. The device includes a chamber having an opening, and a heater operative to heat the contents of the chamber. A sensor having an output is coupled to the chamber, the sensor output being processed to provide information about at least one of: a state of decarboxylation, or a quantity of a material in the contents of the chamber. The method includes loading a quantity of the agricultural product in a chamber having an port and applying an elevated temperature to the chamber to increase a rate of decarboxylation. A property of a gas is measured at the port the measurement being processed to determine one of either: a state of decarboxylation, or a quantity of material in the sample.

A portable electronic alcohol-testing device is provided that uses vaporization and sensitive pressure guages to approximate the alcohol content of a solution. The device may be used, for example, to determine the relative alcohol content of a mixed beverage.

A portable electronic alcohol-testing device is provided that uses vaporization and sensitive pressure guages to approximate the alcohol content of a solution. The device may be used, for example, to determine the relative alcohol content of a mixed beverage.

The invention relates to a device for determining a volume of gas in a sample contained in a vessel, the device comprising: a frame configured to attach the vessel; a needle having a longitudinal axis, comprising a proximal part and a distal part, the distal part being configured to pierce the vessel and the proximal part comprising a lumen; and an analysis compartment comprising a cell in fluid communication with the lumen of the proximal part of the needle. The invention also relates to a method for determining a volume of gas in a sample contained in a vessel.

The invention relates to a device for determining a volume of gas in a sample contained in a vessel, the device comprising: a frame configured to attach the vessel; a needle having a longitudinal axis, comprising a proximal part and a distal part, the distal part being configured to pierce the vessel and the proximal part comprising a lumen; and an analysis compartment comprising a cell in fluid communication with the lumen of the proximal part of the needle. The invention also relates to a method for determining a volume of gas in a sample contained in a vessel.

A method for determining the degree of saturation of a solid ammonia storage material in a storage unit includes activating a heater to release ammonia from the storage material until the pressure of the storage unit reaches a predetermined pressure. The method then deactivates the heater and determining a decay rate of the pressure of the storage unit while the heater is deactivated. The method estimates the degree of saturation of the ammonia storage medium in response to the decay rate. According to some embodiments, determining the decay rate may include measuring the time required for the pressure of the storage unit to drop from a first pressure threshold to a second pressure threshold.

A method for determining the degree of saturation of a solid ammonia storage material in a storage unit includes activating a heater to release ammonia from the storage material until the pressure of the storage unit reaches a predetermined pressure. The method then deactivates the heater and determining a decay rate of the pressure of the storage unit while the heater is deactivated. The method estimates the degree of saturation of the ammonia storage medium in response to the decay rate. According to some embodiments, determining the decay rate may include measuring the time required for the pressure of the storage unit to drop from a first pressure threshold to a second pressure threshold.