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      AHS-7900E Automatic Headspace Sampler

      source:中儀宇盛   date:2020-04-29 16:17:57   click:
        

      AHS-7900E Automatic Headspace Sampler


       


      Instrument Introduction


      AHS-7900E is a new generation of automatic headspace sampling device independently developed by Beijing Zhongyi Yusheng Technology Co., Ltd. It adopts seven-inch touch screen display control, electronic cold trap adopts imported semiconductor refrigeration capture, imported switching valve sampling, electronic flow display, and can be used with all domestic and imported GC and GCMS.


       


      Function configuration


      1. Standard 40-sampler, static / dynamic optional;


      2. 15-position heating plate, can realize overlapping heating, can heat up to 12 samples at the same time, improve efficiency;


      3. Combined with dynamic headspace components, the sensitivity can be increased by 50-100 times;


      4. It can realize multiple injection analysis of the same sample;


      5. Start-up account login, system self-check, fault alarm and prompt function, temperature overload protection function, leakage protection function, etc., improve the safety factor of the instrument;


      6. Inert materials are used in the sample transfer pipeline, injection needle and quantitative loop to prevent sample residue and loss;


      7. The latest Win10 system program control, the main functions are:


      (1) Setting of detection method parameters, real-time display of working status, running time, flow rate, etc.


      (2) The program controls the sample area, sampling valve, sample transfer tube, cold trap and desorption five-way temperature, and the desorption temperature heating rate can reach 1800 ℃ / min;


      (3) Seven-inch touch screen operation interface design, beautiful and practical, easy to operate, perfect human-computer interaction process;


      (4) The GC and chromatographic data processing workstation can be started synchronously, and the device can also be started by an external program;


      8. Brand-new software control system, automatically perform functions such as purge, capture, desorption, sample injection, and backflushing with one click;


      9. The automatic backflush function of the entire purge sampling system can effectively avoid cross contamination of different samples;


      10. This instrument is equipped with a dedicated interface for various imported instruments, which can be connected to all types of GC and GCMS at home and abroad;


      11. Added log, help, stopwatch, Chinese and English operation interface switching function to provide more convenience.


       


      Application range


      The minimum detection concentration of volatile organic compounds in the detection environment can reach ppb level; it is mainly used for the analysis of VOCs of volatile organic compounds in water and soil, and also for the analysis of volatile substances in food. The instrument meets the following standards:


      1. "HJ 679-2013 Soil and sediment determination of acrolein, acrylonitrile, acetonitrile headspace-gas chromatography";


      2. "HJ 741-2015 Determination of soil and sediment volatile organic compounds headspace / gas chromatography";


      3. "GB / T 5750.8-2006 Standard Inspection Method for Drinking Water, Organic Matter Index";


      4. "GA / T 842-2019 blood alcohol content test method";


      5. "HJ 975-2018 solid waste benzene series determination of headspace-gas chromatography";


      6. "SN / T 4148-2015 Determination of Volatile Organic Compounds (VOCs) in Packaging Materials Static Headspace-Gas Chromatography", etc.


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