Atmospheric pre concentrator

1Overview

HLNS-2typeAtmospheric pre concentratorAdopting semiconductor electronic refrigeration、Rapid thermal desorption technology, specifically for《Designed according to GB/T14678-93 Air Quality - Determination of Hydrogen Sulfide, Methyl Mercaptan, Methyl Sulfide, and Dimethyl Disulfide. This automatic low-temperature atmospheric pre concentration device is equipped with a large touch screen, which makes human-machine interaction simple and convenient,Can be compatible with all domestic and imported productsUsed in conjunction with GC/GCMS.

IIperformance metrics

1. Valve injection system temperature and control range: room temperature~220℃

2. Sample transmission pipeline temperature and control range:room temperature～220℃

3. Desorption (focusing tube) temperature control range: room temperature~450℃，heating rate>3500℃/min

4. Temperature control range of cold trap (electronic semiconductor refrigeration):-50℃～room temperatureNo need for liquid nitrogen refrigeration

5. Temperature control accuracy:<±0.1℃

6. Temperature control gradient:<±1℃

7. Gas path pressure resistance:>0.4MPa

8. Sample adsorption flow rate:0-150ml/min (continuously adjustable)

9. 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

10. Timing range:1s～1000min

11. Timing error value:<0.1%

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

13. Power Supply:AC220V 50Hz

14. Power:500W (peak)

IIIAtmospheric pre concentratorMain functions and features

1. Fully automated system is safe and reliable

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. The human-computer interaction is simple, easy to operate, and has a high degree of automation (software automatically realizes functions such as sample adsorption, desorption, injection, and backwashing), with 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;10 methods for editing, storing, and calling at any time,one-clickAutomatically complete sample analysis

6. The injection valve, transfer tube, and focusing tube (cooling, heating) links have no transfer cold points and can be individually and accurately temperature controlled

7. The cold trap adopts semiconductor refrigeration+Air cooling,The cooling temperature can reach -50 ℃ (at room temperature of 20 ℃)Effectively improve refrigeration capacity, rapid thermal desorption capability, and detection accuracy

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

9. The six way valve is driven by a motor and does not require external driving gas

10. Provide a synchronization interface that can start gas chromatography simultaneously with sample injection/Mass spectrometry and workstations can also be used externallyministryEvent program starts this device

11. The sample pipeline adopts silane inert treatment stainless steel pipe to reduce residual pollution

12. Support internal configuration of vacuum pump, precise and stable sampling flow rate

13. Equipped with leak detection and fault alarm functions