ATDS-3400 modelThermal desorptioninstrument
1Purpose and application scope
ATDS-3400 modelThermal desorptioninstrumentIt is a sample pre-processing device，Can be used with all imported and domestic gas chromatographs, and the detection concentration of volatile organic compounds in the environment can reachPpb level.ATDS-3400 modelThermal desorptioninstrumentExcept for meetingGB50325-2020Indoor Environmental Pollution Control in Civil Construction Engineeringstandard”Benzene in Indoor Air、Toluene, xyleneThe determination”In addition to the determination of total volatile organic compounds (TVOC) in indoor air, it 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. Sampling and determination of volatile organic compounds and aldehydes and ketones in vehicles；
8. Residual analysis of drugs and court samples;
9. Collecting exhaled gases from patients and detecting volatile drug metabolites in their blood in hospitals.
IICharacteristics and main functions
1. Automated design,One machine with multiple uses,Easy to operate;
2. tinyMachine control,Large screenlcd,touchKeyboard, numeric input, main functions include:
⑴ Method parameter settings, real-time working status, and running time;
⑵ The desorption furnace, injection valve, and sample transfer tube are all heated and temperature controlled;
⑶ Set program control, press the run button to automatically complete the entire sample analysis;
⑷ It can store 9 methods for easy calling at any time, achieving fast startup and analysis;
⑸ The GC and chromatographic data processing workstations can be started synchronously, and the device can also be started using external programs;
3. Equipped with an external carrier gas regulation system, there is no need forThe GC instrument can be operated with any modifications or changes, canUse the original instrument carrier gas;
4. Sample transmissiontransportPipeAnd the injection valveThere is an automatic blowback function, which avoids cross sampling of different samplessewageDyeing;
5. The machine comes with the function of simulating and sampling standard samples, which makes it more convenient to create working curves through a thermal desorption instrument;
6Through foreign affairs time programming, automatic desorption and injection can be achieved、Analysis and post analysis blowback functions;
7For active substance analysis, a 0.53mm elastic quartz tube can be selected as the sample transfer tube;
8DriveofThe key components use imported pneumatic components;
9. Easy replacement of injection needle，Can connect all models both domestically and internationallyGC injection port；
10.In order to complement importsGC is more convenient and accurate to use, and this instrument is also equipped with dedicated interfaces for various imported instruments, making it easy to connect.
IIIMain technical performance
1. Temperature control range in the sample area:
room temperature—400℃ In increments1℃Ren Shi Heating power approximately200W；
2. Temperature control range of valve injection system:
room temperature—180℃Increase by 1℃Ren Shi Heating power approximately60W；
3. Temperature control range of sample transfer pipeline:
room temperature—200℃Increase by 1℃Ren Shi Heating power approximately40W
（For operational safety, the temperature control of the transmission pipeline adopts low-voltage power supply）；
4. Temperature control accuracy:< ±0.1℃ ；
5 Temperature control gradient:< ±0.1℃；
6. Desorption recovery rate:>95%(Related to components);
7. Simulated sampling flow rate:100ml/min
8. Backblowing cleaning flow rate:0～200ml/Min (continuously adjustable);
9Instrument size: 400 × 170 × 300mm3；
10Instrument weight: approximately 12kg。
