Brief introduction of purging and collecting instrument function:

1.72 samples can be on duty can be automatically operated;

2. Start account login, system self-check, fault alarm and prompt function, temperature rise overload protection function, leakage protection function, etc., to improve the safety factor of the instrument;

3. The gas circuit adopts imported electric switch valve, MFC mass flow controller and electronic pressure sensor to be completely inert, which can control the carrier gas pressure and purge flow rate and keep the time stable;

4. Set the parameters of the detection method, and display the working status, running time, flow, etc. in real time.

5. The program controls the six-way temperature of the sample area, the sample valve, the sample tube, the cold sink, the water removal trap and the trap tube desorption zone, and the desorption temperature rise rate can reach 1800 ℃/min;

6. Seven-inch touch screen operation interface design beautiful and practical, simple operation, to achieve human-computer interaction;

7.GC and workstation can be started at the same time, or they can be anti-controlled with GC;

8. The new software control system has a key automatic purging, trapping, desorption, injection, blowback cleaning and other functions;

9. This equipment has the function of automatically mixing samples; U-shaped purge tube 5ml,25ml;

10. The full purging sample injection system has an automatic back-blowing function, which can effectively prevent cross-contamination of different samples;

11. A water removal well is set before the gas gathering well to reduce the influence of water vapor on gas chromatography mass spectrometry.

12. Purge and capture instrument is equipped with a special interface, suitable for all kinds of imported instruments, can be connected to domestic and foreign GC, GCMS and other models;

13. Add log, help, stopwatch, Chinese and English operation interface switching function to provide more convenience.

Scope of application of purging and collecting instrument:

In the test environment, the detection concentration of VOCs reached ppb level; mainly used for VOCs analysis, including soil and water volatile organic compounds VOCs analysis and food volatile substances analysis.