Tengzhou Zhongkepu is a professional manufacturer of gas chromatography and portable chromatography equipment. The equipment produced meets national standards and is favored and recognized by users in the market. The following is a detailed analysis of the price, usage method, instrument structure, and service system of GC2020 Tengzhou gas chromatography:

【 Product Name 】 Tengzhou Gas Chromatography Instrument - Zhongkepu GC2020 Type

Analysis principle of Tengzhou gas chromatography analyzerGas 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 each component 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 analysis method has been widely used in various sectors such as petrochemicals, biochemistry, medicine and health, health quarantine, food inspection, environmental protection, food industry, and medical clinical practice. Gas chromatography has solved problems such as quality inspection, scientific research, pollution detection, and production control of intermediates and industrial products in these fields.

Installation Requirements for Tengzhou Gas Chromatography AnalyzerBasic operating requirements for instruments

1. Power requirements:

Voltage: 220 ± 10%

Frequency: 50 ± 0.5Hz

Power: ≥ 3000W

Grounding requirement resistance: ＜ 0.1Ω

2. Gas source requirements:

Nitrogen: 99.995%

Hydrogen: 99.995%

Air: dry and oil-free

3. Basic operating requirements for hydrogen flame ionization detector (FID)

Carrier gas: flow rate 50ml/min (30-80 ml/min)

Hydrogen gas: flow rate 30ml/min (25-40 ml/min)

Air flow rate: 350 ml/min (250-500 ml/min)

4. Basic operating requirements for thermal conductivity detector (TCD)

Before starting up, the carrier gas should be supplied for 30 minutes with a flow rate of 50ml/min, and then the machine should be turned on for heating

Flow correction, two outlet flow deviation ≤ 1%

According to the analysis requirements, set the size of the bridge flow value

When using nitrogen as the carrier gas, the bridge flow should be appropriately reduced compared to hydrogen as the carrier gas

5. Special reminder: Connect the carrier gas first, and then turn on the machine to heat up!

The instrument allows the use of gas generators, oil-free air compressors, and other devices to provide the working gas source for the instrument. The gas generated by gas generation devices or air pumps has a high water content, and necessary gas purification must be carried out during use. When using a gas purification device, it is important to pay attention to regular maintenance of the device. The filling material inside the purification device should be activated or replaced regularly, otherwise it will lose its intended function. Long term use of gases with high water content can reduce the service life of chromatography columns, decrease the stability of instruments, and contaminate the gas path system, making the instruments unable to function properly.

[Features]

◆ Fully computerized button operation, 5.7-inch large screen with 13 line LCD Chinese display, human-machine dialogue mode, easy to operate.

◆ Newly integrated digital electronic circuit, high control accuracy, stable and reliable performance, high-precision temperature control 50 times per second, with an accuracy of up to 0.1 ℃.

Large column box volume: 300 * 280 * 180, accommodating multiple chromatography columns and two 100 meter 0.53 capillary columns to the maximum extent possible.

Introduce foreign sample inlet designs to address sample discrimination; The dual column compensation function not only solves the program drift caused by temperature rise, but also reduces the influence of background noise, resulting in a lower detection limit.

Intelligent rear door opening system, dual door design, infinitely variable air flow in and out, shortening the system's stable balance time after program temperature rise/fall; Heating furnace system: (temperature range) ambient temperature 5 ℃~400 ℃. The temperature equilibrium time of the heating furnace is determined by the user.

◆ Three injectors and three detectors can be installed simultaneously to solve complex sample analysis problems for customers.

◆ Better insulation effect: When the column box, vaporization, and detection are all at 300 degrees, the hottest spot on the outer box and top cover is only 40 degrees, which increases the experimental speed and ensures the safety of users.

◆ Optional installation of automatic/manual six way injection valve, headspace sampler, thermal analysis sampler, cracking furnace, methane conversion furnace and other extension devices can be added to facilitate the analysis of special samples.

◆ It has a power on self-test function, fault display, automatic protection, instant power-off protection, and strong anti-interference ability.

Excellent design concept:

◆ Vaporization chamber design *, with smaller dead volume;

◆ Easy replacement of accessories: the injection pad, liner, polarizing electrode, collection electrode, and nozzle can all be replaced with one hand;

◆ Easy replacement of the main body: The filling column, capillary sampler, TCD, FID detector can be disassembled with just one wrench, making maintenance very convenient;

◆ Excellent nozzle: * High temperature resistant quartz design, not easily broken and more inert, rotating seal, better sealing *;

◆ Reasonable positioning: * Capillary positioning system effectively ensures the repeatability of column installation and constant combustion rate;

◆ Column head injection: Fill the column head injection to effectively prevent diversion discrimination effects.

GC2020 Gas Chromatography Instrument Technical Parameters

Column box:

Temperature control range: Room temperature+5 ℃~399 ℃ (increments of 0.1 ℃)

◆ Number of ascending orders: Ten orders

◆ Lift rate: 0.1 ℃~50 ℃ (incremental 0.1 ℃)

◆ Cheng Sheng holding time: can be set by the user themselves

Sample injector:

◆ Up to 3 injection systems can be installed simultaneously

◆ Injection unit: Fill column injection system

Split/non split capillary injection system (with diaphragm cleaning function)

◆ Temperature control range: Room temperature+5 ℃~399 ℃

Detector:

◆ Up to three detectors can be installed simultaneously

◆ Temperature control range: Room temperature+30 ℃~400 ℃

Hydrogen flame ionization detector (FID):

◆ Sensitivity: ≤ 5 × 10-12g/s (n-hexadecane)

◆ Dynamic range: ≥ one hundred and six

Baseline noise: ≤ 1×10-13A

◆ Stabilization time: ＜ 20min

◆ Insulation strength: ≥ 1500 volts, 220V leakage current ≤ 1mA

Thermal conductivity detector (TCD):

Sensitivity: S ≥ 10000mv. ml/mg (n-hexadecane)

◆ Dynamic range: ≥ one hundred and six

Baseline noise: ≤ 20uV (hydrogen with a carrier gas of 99.999)