SYSTEM FOR GAS-CHROMATOGRAPHIC ANALYSIS OF AIR SAMPLES Russian patent published in 2013 - IPC G01N30/78 

FIELD: physics.

SUBSTANCE: system for gas-chromatographic analysis of air samples has two chromatographs 1 with plasma ionisation detectors 2, a chromatograph 4 with a heat conductivity detector 5, chromatographic packed columns 12 filled with an adsorbent, concentrators 13 installed in chromatographs 1 and 4. The system also includes an information conversion device 14 connected to a computer 15, having special software. The system also includes a device 8 for obtaining deionised water, a hydrogen generator 9, three gas preparation units 10 with three control panels 11, two electrometer amplifiers 3 and detector power supply 6. The device 8 for obtaining water is connected to the hydrogen generator 9 which is connected to each gas preparation unit 10 of chromatographs 1 with plasma ionisation detectors 2 through the control panel for feeding hydrogen 16, and to the detector power supply 6, connected to the chromatograph 4 with the heat-conductivity detector 5, and the two electrometer amplifiers 3, connected to two chromatographs 1 with plasma ionisation detectors 2, are connected to connecting cables from control panels 11 and the information conversion device 14.

EFFECT: providing quality and accurate estimation of content of hazardous impurities and concentration thereof in air samples, improved operational qualities of the system.

2 dwg