Abstract: A gas analysis system includes a fluidic channel for flow of a gas to be analyzed, a detector in the channel and adapted for measuring interactions of the gas with the detector, the detector including a resonator of the electromechanical nanosystem (NEMS) type and a heating system for heating a part of the detector, an actuation device for vibrationally actuating the resonator according to an excitation signal applied to an input of the detector, a detection device adapted for providing an output electric signal representative of the vibrations of the resonator, a read-out device connected to an input of the detector and configured for simultaneously measuring, from the output signal of the detector, the change in resonance frequency and the change in amplitude of the vibrations at the resonance frequency of the resonator, and a processing device configured for determining from the changes a fluidic characteristic of the gas.

Abstract: The invention relates to a gas analysis system comprising, from upstream to downstream: a module (SEP) for separating at least a portion of the species contained in the gas to be analysed, comprising at least one microcapillary column (GC) for gas phase chromatography, and a time-of-flight mass spectrometer (TOFMS) coupled to said separation module, said spectrometer comprising a ion source (MS1, MS2) adapted to ionise at least a portion of said species and to emit a ion beam, and a free-flight zone (MS4) for said ions, said mass spectrometer (TOFMS) being arranged in the volume of at least one substrate and comprising a micro-reflectron (R) arranged between the source (MS1, MS2) and the free-flight zone (MS4), a wall (R1) of said micro-reflectron comprising a layer made from a resistive material designed to be polarised between at least two regions so as to create a continuous electrostatic field gradient in said reflectron.

Abstract: A gas analysis system includes a fluidic channel for flow of a gas to be analyzed, a detector in the channel and adapted for measuring interactions of the gas with the detector, the detector including a resonator of the electromechanical nanosystem (NEMS) type and a heating system for heating a part of the detector, an actuation device for vibrationally actuating the resonator according to an excitation signal applied to an input of the detector, a detection device adapted for providing an output electric signal representative of the vibrations of the resonator, a read-out device connected to an input of the detector and configured for simultaneously measuring, from the output signal of the detector, the change in resonance frequency and the change in amplitude of the vibrations at the resonance frequency of the resonator, and a processing device configured for determining from the changes a fluidic characteristic of the gas.

Abstract: The invention relates to a gas analysis system comprising, from upstream to downstream: a module (SEP) for separating at least a portion of the species contained in the gas to be analysed, comprising at least one microcapillary column (GC) for gas phase chromatography, and a time-of-flight mass spectrometer (TOFMS) coupled to said separation module, said spectrometer comprising a ion source (MS1, MS2) adapted to ionise at least a portion of said species and to emit a ion beam, and a free-flight zone (MS4) for said ions, said mass spectrometer (TOFMS) being arranged in the volume of at least one substrate and comprising a micro-reflectron (R) arranged between the source (MS1, MS2) and the free-flight zone (MS4), a wall (R1) of said micro-reflectron comprising a layer made from a resistive material designed to be polarised between at least two regions so as to create a continuous electrostatic field gradient in said reflectron.