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Gas chromatography
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
Gas Chromatograph
JC-7890 Gas Chromatograph
  • Product name:JC-7890 Gas Chromatograph
  • Order number:
  • Model:JC-7890
  • Stock status:Delivery according to contract
  • Logistics:by sea, by air, by express, etc.
  • Product Introduction
  • Details Page
  • 1. Product introduction

    Gas chromatograph refers to a chromatographic analysis instrument that uses gas as the mobile phase. Mainly used in: environmental protection, food fermentation, petroleum processing, organic chemistry and other industries analysis and research. 

    2. Main technical indicators of product parameters

    1. Temperature control range of column oven: room temperature 5℃-400℃ (set in increments of 0.1℃). 

    2. Temperature accuracy: not more than ±0.1℃. 

    3. Temperature gradient: ±1°C (100°C-360°C temperature program). 

    4. Heating rate: 0.1°C-40°C/min (set in increments of 0.1°C). 5. Temperature control range of sample inlet and detector: room temperature +10℃-400℃. 6. Voltage 220V±10%, max power 2200W. Detector technical indicators:


    Sensitivity / Sensitivity






    Mf≤8×10 -12 g/s(benzene)

    ≤ 0.02mV

    ≤ 0.15mV/h

    ≥10 7

    Platinum ignition wire, corundum porcelain nozzle


    S≥3500mV.ml/mg (benzene)

    ≤ 0.02mV

    ≤ 0.15mV/h

    ≥10 5

    Imported rhenium tungsten wire, constant current power supply



    Ms≤5×10 -11 g/sec(thiophene)

    ≤ 0.02mV

    ≤ 0.15mV/h


    Single flame design, suitable for sulfur and phosphorus residue analysis


    Mf≤5×10 -12 g/s( azobenzene

    Mf≤5×10 -12 g/s(malathion)

    ≤ 0.02mV

    ≤ 0.15mV/h


    Imported rubidium beads, suitable for residual analysis of phosphorus


    Mf≤1×10 -13g/ml(r-666)

    ≤ 0.02mV

    ≤ 0.15mV/h

    ≥10 7

    Ni 63 radioactive source; suitable for residual analysis of electronegative substances

    Note: Dimensions : 660*460*465mm Overall weight: 60 kg Input power: AC 200V±10% 50HZ 2KW

    3. Product Features

    1. The large screen displays in both Chinese and English, the screen switching is simple and clear, and the appearance is fashionable and beautiful.
    2. Perfect intelligent multi-dimensional chromatography system, ARM9-32-bit chip and foreign original software, wide heating rate, rapid cooling system, and high-stability temperature control technology.
    3. Perfect self-diagnosis function, which can easily check the fault location and fault type.
    4. Perfect temperature overheat protection and platinum wire resistance open-circuit and short-circuit alarm functions to ensure that the temperature does not get out of control.
    5. Optional built-in AD conversion circuit can directly output digital signals.
    6. The reverse control function can be realized, and the setting and analysis control of all parameters can be completed on the PC.
    7. Under the condition of dry ice or liquid nitrogen, negative temperature operation can be realized, and a wide range of temperature control from -80°C to 450°C can be supported.
    8. Within 180℃, the control accuracy of the column box is as high as ±0.01℃.
    9. Two packed columns and one capillary column can be installed at the same time, or two pairs of capillary columns can be installed at the same time.
    10. It can realize double thermal conductivity, double FID, or thermal conductivity and hydrogen flame working at the same time.
    11. Three detectors and methane reformer can be installed at the same time.
    12. Optional functions such as manual injection, automatic start of injection device, and automatic ignition.
    13. The instrument has the function of automatic power failure protection when gas is cut off.
    14. Six-way temperature control, seven-stage temperature program, independent temperature control of capillary and packed column vaporization chamber, intelligent double back door.
    15. The instrument adopts a 5.7-inch color screen display, which can display two spectra at the same time; it has the function of automatic flow display.
    16. External equipment such as headspace sampler, thermal analyzer, liquid automatic sampler, and gas automatic sampling valve can be used together.

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