Essence and fragrance detection gas chromatograph

Essence and fragrance detection gas chromatographGC7900 is a cost-effective, multifunctional, economical and practical precision instrument. The instrument adopts a three column three gas path operating system, and the basic model is equipped with a hydrogen flame ionization detector (FID) and a thermal conductivity cell detector (TCD). The instrument can be equipped with automatic ignition and automatic bridge current function.

Key Features:

1. Adopting a 320 * 240 dot matrix 5.7-inch ultra large screen LCD display in Chinese/English, real-time display of various temperatures and operating conditions, clear and intuitive content, truly realizing human-machine dialogue;

2. Power on self-test, automatic ignition, automatic temperature rise, wide range self diagnostic function, can determine the fault location and alarm;

3. Six independent temperature control channels (vaporization chamber and capillary vaporization chamber can independently control temperature), with eight step programmed temperature rise function;

4. Overtemperature protection function: If any circuit exceeds the set temperature, the instrument will automatically power off and sound an alarm;

5. The vertical heating device of * makes sample vaporization more reliable, reduces the heat radiation generated by the vaporization chamber, and ensures minimal temperature deviation inside the column box;

6. The intelligent fuzzy control rear door opening system automatically tracks temperature and dynamically adjusts the angle of the air door, achieving precise temperature control even near room temperature;

7. Configure a capillary split/non split injection device with filling column head injection and glass lining injection, equipped with diaphragm cleaning function, and capable of installing gas injectors;

8. High precision dual stable gas path, capable of installing four types of detectors simultaneously.

Essence and fragrance detection gas chromatographTechnical Indicators:

◆ Temperature control:

Temperature control range: 6 ℃ -400 ℃ at room temperature

Temperature control accuracy: Soil 0.01 ℃

Temperature control channels: 5 channels (expandable to 6 channels)

Program heating order: 5 orders

Cheng Sheng rate: 0.1 ℃ -50 ℃/min

Time setting: 0-9999.9/min

Flame ionization detector (FID): (n-hexadecane)

Detection limit: Mt ≤ 5 × 10-12g/s

Baseline noise: ≤ 6 × 10-14A

Baseline drift: ≤ 6 × 10-13A/h

Linear range: ≥ 106

Thermal conductivity detector (TCD): (n-hexadecane)

Sensitivity: S ≥ 5000mv.ml/mg

Baseline noise: ≤ 20UV

Baseline drift: ≤ 30UV/h

Linear range: ≥ 104