Gas chromatograph [ethylene oxide residue detection]

Gas chromatograph [ethylene oxide residue detection]

Main features:

1.Chinese and English switching display technology, 5.7-inch LCD large screen (320 x 240mm). Up to 20 display interfaces, can save 20 sets of chromatographic analysis data, and can be invoked at any time.

2.Industrial design appearance, novel and generous, beautiful and practical, reasonable structure, comfortable operation.

3.Gas cut-off protection function, maximum protection of chromatographic column, thermal conductivity cell, electronic capture detector, etc.

4.The eighth order linear temperature programmed function and the intelligent double back door design truly realize the near room temperature control, and the temperature control accuracy is up to ± 0.1 ℃ to meet the requirements of wide range analysis.

5.Perfect over temperature thermal protection and platinum resistance open circuit and short circuit alarm function to ensure the instrument is not damaged.

6.Self diagnosis function and fault prompt in Chinese, so that the user can easily know the cause and location of the problem.

7.Adopt advanced flash memory system, so that data protection is no longer dependent on battery.

8.The FID detector controlled by the microcomputer realizes the automatic ignition function.

9.High precision steady pressure and flow mode makes the air flow precise and stable, and realizes the multi-channel air control system.

10.High performance capillary vaporizer realizes the real sense of split / non split injection system.

11. able to install 1-4 detectors at the same time. It can operate with double FID or TCD or ECD or NPD. TCD is equipped with double post column make-up gas, so it can be used in single column, double column and capillary column.

12.It can install and operate 1-3 sets of capillary columns and 3 detectors at the same time. One instrument is equivalent to three (shared by column room). Or double FID double wool. Double TCD double hair. The dual TCDS work at the same time without any influence on each other, and the carrier gas can be independent of each other. It avoids the tedious replacement of chromatographic column and detector.

13. It can realize the series and parallel use of detector, and carry out intelligent automatic conversion through event control.

14. The instrument can be installed with various injection modes such as reformer, thermal desorption instrument, automatic injector, automatic headspace injector, cracker, etc. It can automatically sample at fixed time and realize automatic on-line analysis.

15. The instrument is especially suitable for various enterprises, technical supervision bureaus, environmental monitoring, health and epidemic prevention, universities, scientific research and etc.

Technical parameters:

Overall size (LxHxD) 520 × 480 × 500mm

Inner size(LxHxD) 260 × 250 × 150 mm

Installation span of chromatographic column 152.4mm (6-inch standard interface)

Chromatographic column Outer diameter of packed column is 3-5mm (metal or glass column)

Equipment weight 50kg

Maximum power 2500W

Voltage: 220V ± 10%

Temperature control range RT+5 ℃ - 400 ℃ (adjustable)

Temperature accuracy ± 0.1 ℃

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

Heating rate 0.1-50 ℃ / min (optional in 0.1 ℃)

Time setting 6000 min

Program order 8-order detector technical index

Hydrogen flame ionization detector (FID)

● detection limit: MT ≤ 2 × 10-12g / S (n-hexadecane)

● noise: ≤ 2 × 10-14a (0.02mv)

● drift: ≤ 1.5 × 10-13a / 30min (0.15mv / 0.5h)

● linear range: ≥ 107

● maximum operating temperature: ≤ 450 ℃

Thermal conductivity detector (TCD)

● sensitivity: s ≥ 10000mv.ml/mg (n-cetane)

● noise: ≤ 20 μ V

● baseline drift: ≤ 150 μ V / 30min

Electronic capture detector (ECD)

● detection limit: ≤ 1 × 10-14g / ml

● linear range: 104

● radiation source: 63Ni

Flame photometric detector (FPD)

● detection limit: (P) < 1 × 10-12g / S; (s) < 1 × 10-12g / S

● linear range: 105 (P) 103 (s)

Nitrogen and phosphorus detector (NPD)

● detection limit: (n) < 5 × 10-13g / S; (s) < 5 × 10-13g / S