Gas chromatography instrument

brief introduction：

The GC-9880 gas chromatograph is a new generation of networked laboratory gas chromatograph launched by Shandong Yuntang Intelligent Technology Co., Ltd. Yuntang Company utilizes international advanced technology, adheres to the advantages of domestic instruments, carries out technological innovation, and comprehensively upgrades its products.

This instrument adopts a microcomputer control system and a large Chinese screen display, making its appearance more beautiful and smooth. The newly designed keyboard buttons are simple and fast, and the circuits are all made of imported components. The instrument has stable performance and high reliability. The automation level and overall performance have been greatly improved. The highly stable and sensitive microcurrent amplification technology significantly increases the detection limit of FID, and the sensitivity of the new thermal conductivity detector is increased by 5 times. Shortening the gap between domestic and imported models can meet the needs of petroleum, chemical, pharmaceutical, food, environmental protection, disease control, scientific research institutions, and quality inspection departments.

Performance characteristics：

1、 High circuit integration, high precision, and versatility

1. Fully computerized button operation, with a 5.7-inch (320 * 240) large LCD display in both Chinese and English. The Chinese and English displays can be freely switched, meeting the operational requirements of different groups of people. The human-machine dialogue mode is convenient to operate.

2. The microcomputer controlled hydrogen flame detector has achieved automatic ignition function and is more intelligent. The brand new integrated digital electronic circuit has high control accuracy, stable and reliable performance, and can achieve a temperature control accuracy of 0.01 ℃.

3. Gas cut-off protection function, maximizing the protection of the chromatographic column, thermal conductivity cell, and electron capture detector.

Equipped with startup self diagnosis function, allowing users to quickly know the cause and location of instrument faults, stopwatch function (convenient for flow measurement), power outage storage protection function, anti power mutation interference function, networked data communication and remote control function. The over temperature protection function ensures that the instrument is not damaged and has an advanced data memory system, eliminating the need for every reset.

The unique design of the injection system allows for lower detection limits：

1. Unique injection port design solves injection discrimination; The dual column compensation function not only solves the baseline drift caused by program heating, but also subtracts the influence of background noise, resulting in a lower minimum detection limit.

2. Equipped with packed column and capillary split/non split injection system (with diaphragm cleaning function)

3. Optional automatic/manual gas six way injection valve sampler, headspace sampler, thermal analysis sampler, methane conversion furnace, and automatic sampler.

Program heating, precise control of furnace temperature, stable and fast：

1. Eighth order linear program heating, the rear door adopts a photoelectric switch contactless design, which is reliable and durable. The intelligent rear door opening system has stepless variable inlet and outlet air volume, shortening the stable balance time of each detector system after program heating/cooling. It truly realizes near room temperature operation, with a temperature control accuracy of ± 0.01 ℃, meeting the requirements of wide range analysis.

2. The column box has a large volume, and the intelligent rear door opening system has stepless variable inlet and outlet air volume, which shortens the stable balance time of each detector system after the program is heated/cooled; Heating furnace system: ambient temperature+5 ℃~420 ℃.

3. 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

Column temperature box：

Temperature range: room temperature+5-420 ℃

Temperature setting: set in increments of 1 ℃; Program set heating rate 0.1 ˚ C

Maximum heating rate: 40 ˚ C/min

Temperature stability: When the ambient temperature changes by 1 ˚ At C, it is 0.01 ˚ C

Temperature gradient: ± 1% (temperature range 100 ℃ -350 ℃) programmed heating

Program heating: 8th order program heating adjustable

Time setting: 6000 (min)

Injection port：

Multiple injection ports can be equipped: packed column injection port, split/non split capillary injection port

Detector detection indicators：

Hydrogen flame ionization detector (FID)

Maximum operating temperature: 400 ℃

Detection limit: ≤ 5 × 10-12g/s (n-hexadecane)

Drift: ≤ 5 × 10-13A/30min

Noise: ≤ 2 × 10-13A

Dynamic linear range: ≥ 107

Thermal conductivity cell detector (TCD)

Maximum operating temperature: 400 ℃

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

Drift: ≤ 100uV/30mi

Noise: ≤ 20uA

Dynamic linear range: ≥ 105

Electronic Capture Detector (ECD)

Maximum operating temperature: 350 ℃

Detection limit: ≤ 1 × 10-14 g/ml（ γ- 666)

Drift: ≤ 50uV/30min

Noise: ≤ 20uV

Dynamic linear range: ≥ 104

Flame Photometric Detector (FPD)

Maximum operating temperature: 400 ℃

Detection limit: ≤ 1 × 10-12g/s (P) ≤ 1 × 10-12g/s (S)

Drift: ≤ 4 × 10-11A/30min

Noise: ≤ 2 × 10-12A

Dynamic linear range: ≥ 103 (P) ≥ 102 (S)

Nitrogen and phosphorus detector (NPD)

Maximum operating temperature: 400 ℃

Detection limit: ≤ 5 × 10-13g/s (P) ≤ 5 × 10-13g/s (N)

Drift: ≤ 25 × 10-12A/30min

Noise: ≤ 4 × 10-13A

Dynamic linear range: ≥ 103 (P)

External dimensions: 465 * 460 * 550mm, overall weight: 50kg,

Input power supply: AC220V 50HZ, maximum power 2500w

application area：

Chemical, petroleum, distillery, environmental testing, food hygiene, soil, pesticide residues, papermaking, electricity, mining, commodity inspection, etc.