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Thermal analysis automatic sampling device
Overview of Application and Scope: The thermal analysis automatic sampling device is a sample pretreatment device that can be used with all imported a
Product details
Overview of Usage and Application Scope:
The thermal analysis automatic sampling device is a sample pretreatment device that can be used with all imported and domestic gas chromatographs. The small detection concentration of volatile organic compounds in the environment can reach ppb level. In addition to meeting the requirements of 'Determination of Benzene in Indoor Air' and 'Determination of Total Volatile Organic Compounds (TVOC) in Indoor Air' in GB50325-2006 'Code for Indoor Environmental Pollution Control of Civil Building Engineering', the thermal analysis automatic sampling device can also be applied to the following fields:
1. Occupational safety, industrial hygiene, and environmental monitoring;
2. Rapid identification of unknown atmosphere;
3. Analysis of spices and essence;
4. Assessment of toxic substance accidents (when personnel can safely return to the accident site);
5. Security monitoring of the perimeter environment of chemical weapons warehouses;
6. Quality control testing in the polymer and packaging industries;
7. Evaluation of drug solvents and product purity;
8. Residual analysis of drugs and court samples;
9. Collecting exhaled gases from patients and detecting volatile drug metabolites in their blood in hospitals.
Characteristics and main functions of thermal desorption automatic injection device:
1. The function of the thermal analysis automatic sampling device can be configured according to user requirements;
2. Automated design, easy to operate;
3. Microcomputer control, LCD Chinese character display, membrane keyboard, numerical input, main functions include:
⑴ LCD can display: method parameter settings, real-time working status, running time, year month day hour, etc., at a glance;
⑵ Analysis furnace, injection system, and sample transfer tube, all three channels are heated and temperature controlled;
⑶ Three external affairs, 8-level time program control, running self start and self stop;
⑷ It has 9 methods for editing, storing, and calling at any time, achieving fast startup and analysis;
⑸ The GC and chromatographic data processing workstations can be synchronously started, and the device can also be started using external event programs;
The keyboard operation is equipped with a mute function;
The brightness of the LCD can be adjusted according to the usage scenario;
The display board and program control board circuit have self checking function and fault display;
4. Equipped with an external carrier gas regulation system, the GC instrument can be operated without any modification or alteration. If the original instrument carrier gas is used, the device can be regarded as an automatic sampling system module for use;
5. A set of thermal analysis equipment can simultaneously supply several GC samples for analysis, greatly improving work efficiency;
6. The sampling tube after thermal analysis has an automatic blowback function;
7. Through foreign affairs time programming, automatic functions such as parsing, sampling, analysis, and post analysis blowback can be achieved;
8. For active substance analysis, a 0.53mm elastic quartz tube can be selected as the sample transfer tube;
9. The key components used for driving are imported pneumatic components;
10. There are various specifications of injection needles that can be easily replaced to meet the needs of different GC instrument injection ports;
Main technical performance of thermal analysis automatic sampling device:
1. Temperature control range in the sample area:
Room temperature -400 ℃, with an increment of 1 ℃, set heating power of approximately 200W;
2. Temperature control range of valve injection system:
Room temperature -160 ℃, with an increment of 1 ℃, set heating power of approximately 60W;
3. Temperature control range of sample transfer pipeline:
Room temperature -160 ℃, with an increment of 1 ℃, the heating power is approximately 40W;
For operational safety, the temperature control of the transmission pipeline adopts low-voltage power supply;
4. Temperature control accuracy:<± 0.5 ℃=''>
5 Temperature control gradient:<>
6. Desorption recovery rate:>85% (depending on the composition);
7. Backblowing cleaning flow rate: 0-20ml/min (continuously adjustable);
8. Effective size of the instrument: 360 × 170 × 390mm3;
9. Weight of the instrument: approximately 10 kg.
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