Non methane total hydrocarbon gas chromatograph

Chromatography analysis technology is a separation and analysis technique for multi-component mixtures. It mainly utilizes the differences in boiling point, polarity, and adsorption coefficient of each component in the sample in the chromatographic column to separate the components in the chromatographic column, and detects the separated components through a detector, thereby conducting qualitative and quantitative analysis of multi-component mixtures.

Due to its high separation efficiency, fast analysis speed, and low sample usage, this analytical method has been widely used in various fields such as petrochemicals, biochemistry, medical and health, health quarantine, food inspection, environmental protection, food industry, and clinical medicine. Gas chromatography has solved problems such as quality inspection, scientific research, pollution monitoring, and production control of intermediates and industrial products in industrial production in these areas.

GC7900Non methane total hydrocarbon gas chromatographIt 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.

GC7900Non methane total hydrocarbon 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