Single channel fully automatic secondary thermal desorption instrument

1Overview

HLTD-A2Series single channel fully automaticThe secondary thermal desorption instrument is a fully automatic thermal desorption instrument with electronic cold trap and secondary adsorption desorption function, which rapidly heats up through secondary cold trap focusing and direct resistance heatingofmethod，Solved the problems of poor desorption peak shape and low desorption rate.

IISingle channel fully automatic secondary thermal desorption instrumentperformance metrics

1. One desorption (adsorption tube) temperature control range: room temperature~420℃，step size1℃

2. Six way valve injection system temperature and control range: room temperature~220℃，step size1℃

3. Sample transmission pipeline temperature and control range:room temperature～220℃，step size1℃

4. Secondary desorption (focusing tube) temperature control range: room temperature~450℃，step size1℃，heating rate>3000℃/min

5. Temperature control range of cold trap (electronic semiconductor refrigeration):-40℃～At room temperature,step size1℃No need for liquid nitrogen refrigeration

6. Temperature control accuracy:<±0.1℃

7. Temperature control gradient:<±0.1℃

8. Gas path pressure resistance:>0.4MPa

9. Sample grade:12/24/36 people

10. Backflow rate:0-100ml/min (continuously adjustable)

11. Simulated sampling flow rate:100ml/min

12. Sample desorption, blowing, injection, and blowback time:

Sample desorption time:0s～1000min

Sample blowing time:0s～1000min

Sample injection time:0s～1000min

Backblowing time of pipeline:0s～1000min

13. Timing range:1s～1000min

14. Timing error value:<0.1%

15. Analysis accuracy:RSD <2.5%（和GC 性能、Related to operational technology)

16. Adsorption tube specification: diameter:Φ6mm/Φ6.35mm， Length: 89mm

17. Synchronization signal output:2 routesdiscrete signalThe linkage switch time is1～2 seconds

18. Power Supply:AC220V 50Hz

19. Power:800W (peak)

20. Instrument size:700×350×540mm3

21. Instrument weight: approximately38kg

IIIMain functions and features

1. The fully automated system is safe and reliable, and does not require personnel to be on duty

2. Modular design of software and hardwareCompact structure

3. Strong universal performance: compatible with all brands of gas chromatographs（GC) andGC-MS (Gas Chromatography-Mass Spectrometry)（GC-MS combined use

4. Simple human-computer interaction, easy operation, high degree of automation (software automatically completes the desorption and injection analysis process of all adsorption tubes), good sample repeatability

5. Equipped with a large touch LCD screen, the interface information is rich and complete, and the operation is simple,Method parameter settings，Real time display of work status and running timeTrack temperature, operation commands, etc. throughout the process

6. The adsorption tube, injection valve, transfer tube, and focusing tube (for cooling and heating) can all be individually controlled for temperature,10 methods for editing, storing, and calling at any time,one-clickAutomatically complete sample analysis

7. The six way valve and transmission pipeline link have no transmission cold points, reducing sample loss,Six way valve injection methodeffectively reduceDead volume ensures injection accuracy

8. The cold trap adopts semiconductor refrigeration+Air cooling, cooling temperature can reach -40 ℃ (at room temperature of 20 ℃)

9. Provide a synchronization interface that can start gas chromatography simultaneously with sample injectionMass spectrometry and chromatographic data processing workstations can also be used externallyministryEvent program starts this device

10. The sample pipeline adopts imported silane treated inert stainless steel pipes and imported solenoid valves to reduce residual pollution

11. The sample transfer tube, injection valve, and focusing tube have automatic blowback function, which avoids cross contamination of different samples

12. Automatic calibration of sample tray function, convenient replacement of injection needle

13. Simple sample processing: The sample tube is detachable, making it easy to carry and collect samples in the field

14. Integrated standard sample preparation function, integrated design

15. Integrated adsorption tube activation function, one click start fully automatic activation

16. Allow for secondary sample addition during the experimental process without the need for resetting or interrupting the original experimental sequence, flexible and convenient

17. Equipped with adsorption tube front blowing function (for high humidity sampling environment) to prevent water vapor from entering the focusing tube of the thermal desorption instrumentGCThe chromatographic column effectively protects the instrument and equipment

18. Equipped with power on self-test and periodic self-test functions, with fault alarms and prompts, temperature overload protection function, leakage protection function, improving the safety factor of instrument use.