Chromatographic complex for analysis of trace impurities in helium

摘要

The basis of the utility model is to provide a modern automated chromatographic complex managed by a PC with specialized software for the analysis of trace impurities in helium grade A and B at the lower limit of the determination of trace in helium 0,05-0,1 ppm. The problem is solved in that the chromatographic complex comprising a gas chromatograph containing a block of the gas supply, the separation unit, a detection unit kriokontsentrator containing block reducers valve switching flow storage unit a trace block columns of heating, the electronic control unit, gas meter, the inputs and outputs the carrier gas and the sample gas and the liquid nitrogen supply device comprising a suction tube, a solenoid valve and the dewar, trace storage unit, the switching valve thread a block gear and heating unit columns combined in kriokontsentrirovaniya unit configured to form a sealed enclosure with an organized tap evaporating nitrogen and further comprising a temperature maintenance unit, temperature sensors, solenoid valve on and off supply of the sample gas, wherein the chromatographic complex is adapted to control his work with a PC using specialized software.; 2 ZP f ly-2-yl.