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        Thermal desorption

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        Dual channel thermal desorption instrument

        brief introduction: Atds-20s dual channel full-automatic thermal desorption instrument is a new generation of full-automatic thermal desorption instrument developed by Beijing Zhongyi Yusheng Technology Co., Ltd. with fully automatic design, touch screen display, more convenient operation and continuous operation of double 20 samples. It can also add normal temperature secondary desorption parts or low temperature secondary desorption parts according to user requirements.

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        Atds-20s dual channel full automatic thermal desorption instrument

        1、 Brief introduction of the instrument

        Atds-20s dual channel full-automatic thermal desorption instrument is a new generation of full-automatic thermal desorption instrument developed by Beijing Zhongyi Yusheng Technology Co., Ltd. with fully automatic design, touch screen display, more convenient operation and continuous operation of double 20 samples. It can also add normal temperature secondary desorption parts or low temperature secondary desorption parts according to user requirements.

        Atds-20s dual channel full automatic thermal desorption instrument can be used with all imported and domestic gas chromatographs, and can meet the following standards:

        1. HJ / 583-2010 determination of Benzene Series in ambient air by solid adsorption / thermal desorption gas chromatography;

        2. GB / 50325-2020 standard for indoor environmental pollution control of civil construction engineering;

        3. GBZ / T 300-2017 determination of toxic substances in the air of workplace

        2、 Features and main functions of the instrument

        1. It can automatically run 1-20 samples in two channels, without personnel on duty;

        2. Power on self-test, fault alarm and prompt, automatic positioning and calibration of sample disk;

        3. Microcomputer program control, the main functions are as follows:

        (1) method parameter setting, real-time animation display of working state and running time;

        (2) the desorption zone, injection valve and sample transfer tube are heated separately to control the temperature;

        (3) set the analysis program and press the run key to automatically complete the analysis of all samples;

        (4) secondary desorption parts at normal temperature or at low temperature can be added according to user requirements;

        (5) it can also start the external GC program;

        4. The machine is equipped with the function of analog sampling of standard sample, which can make working curve more conveniently by thermal desorption instrument;

        5. The sampling tube can be activated automatically by loading its own activation program;

        6. Through time programming, it can automatically realize the functions of desorption, sample injection, backwash cleaning, etc;

        7. The sample transfer tube and injection valve have automatic back blowing function, which can avoid cross contamination of different samples;

        8. In order to make the imported gas chromatograph more convenient and accurate, the instrument is also equipped with special interfaces for various imported instruments, which is convenient for connection;

        9. For the analysis of active substances, elastic quartz tube can be selected as sample transfer tube;

        10. The injection needle is easy to replace and can be connected to all GC injection ports at home and abroad.

        3、 Main technical parameters of the instrument

        1. Desorption 1 temperature control range:

        Room temperature - 400 ℃ in increments of 1 ℃;

        2. Temperature control range of valve injection system:

        Room temperature - 220 ℃ in increments of 1 ℃;

        3. Temperature control range of sample transmission pipeline:

        Room temperature - 240 ℃ in increments of 1 ℃

        (low voltage power supply is adopted for temperature control of transmission pipeline for operation safety);

        4. Temperature control accuracy: < ± 0.1 ℃;

        5. Temperature control gradient: < ± 0.1 ℃;

        6. Sample grade: Double 20

        7. Desorption recovery: > 98% (related to components);

        8. Backwash cleaning flow: 0 ~ 600ml / min (continuously adjustable);

        9. Analog sampling flow: 100ml / min;

        10. Instrument size: 450 × 360 × 510mm3;

        11. Instrument weight: About 30kg.


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