A valve assembly and chuck system for a gas sampling apparatus. In one embodiment, the apparatus may comprise a valve assembly comprising a core valve, wherein a pin of the core valve is biased to a first closed position; an automated chuck system comprising a chuck body, and interrupter system, and a photodetector system, wherein upon being moved toward the valve assembly the interrupter system is displaced within the chuck system, thereby causing the photosensor system to detect and control the progression of the chuck system toward a fully seated configuration against the valve system.

An assembly for detecting volatile compounds in a gaseous fluid includes a detector for detecting vapours, equipped with a suction tube, and a vapour-sampling optimisation device. This vapour-sampling optimisation device has an end piece with a body having a through-passage extending along an axis in a suction direction and configured to accept the suction tube. The device also has a fluidic network with an inlet in fluidic communication with at least one outlet. When the gaseous fluid is injected into the end piece via the inlet of the fluidic network, the network forms a jet of gaseous fluid which is ejected from the end piece on either side of the suction direction. Each jet forms an angle of 10 to 90 in absolute value with the axis of the suction direction, so that the jet ejected from the end piece moves away from the suction axis.

The present invention relates to a gas collection device, and provides a gas collection device for collecting gas that is generated as microorganisms are cultured in a super absorbent polymer product.

A gas analysis device which is capable of analyzing a gas generated from a secondary battery at high resolution in real time. The gas analysis device comprises a diffusion chamber unit, a plurality of gas analysis units, an injector unit selectively injecting the gas generated from the secondary battery into one of the plurality of gas analysis units, and a control unit.