FIELD: devices for detection.
SUBSTANCE: detection device includes an ion mobility spectrometer for detecting a substance of interest, comprising a pneumatic system; pneumatic interface, made for installation on printed circuit board (PCM) and containing polymer housing, having multiple pneumatic channels for connection with pneumatic system of ion mobility spectrometer, wherein plurality of pump couplings are located on housing surface so, that when interface is installed on PCM, each of plurality of pump couplings is brought into compliance with corresponding one of multiple pumps for connection of each pump with appropriate channel from multiple pneumatic channels. At least one of the pneumatic channels is formed by an elongated groove made in the surface of the polymer body and a polymer film, arranged so that it at least partially covers the surface so that the film covers and closes the groove to form a channel.
EFFECT: invention provides protection of the device and its channels against contamination.
17 cl, 2 dwg
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