DSH122 GC112 Gas Chromatograph

3. DSH122 GC112 Gas Chromatograph 气相色谱仪 G3

Gas Chromatograph ， Gas Analyzer ， Chromatograph

GC122专用选配检测器：见网站

I.Key Features:

1. The newly designed high-performance HRGC.

2. The instrument equipped with a dual FID detector, optional GC122-TCD thermal conductivity detector, GC122-ECD electron capture detector, GC122-NPD Nitrogen Phosphorus Detector, GC122-FPD flame photometric detector and the reformer , the gas sampling valve and other accessories.

3. The instrument with dual packed column, dual injector, dual path system structure, can effectively inhibit the baseline fluctuations and drift time, suitable for temperature-programmed analysis; instrument can also install three kinds of detectors, different applications using different detector combinations, and can achieve detector in series and in parallel

4. The instrument with full capillary analysis system, independent capillary splitless injector including membrane cleaning, shunt and gas adjustment Optional capillary split / splitless injector, cold on-column injector, 0.53mm diameter capillary direct injector. Adapted to glass, quartz glass and other types of flexible different calibers, specifications, and the length of the capillary column

5.Instrument air system uses high-precision scale steady flow valve, regulator valve and needle valve. Flow adjustment is convenient and intuitive, with good reproducibility and stability.

6. The instrument with a variety ways of sampling as following; packed column: on-column injection, the instantaneous vaporization injection, gas injection. Capillary column: split injection, splitless, large diameter capillary column direct injection.

7. The newly developed microcomputer temperature control system. Can simultaneously heat the oven, ionization chamber, thermal conductivity detector, capillary injector, packed column injector, auxiliary (standby) heating zones of high precision for six-way (better than ± 0.1 ℃) over a wide range (up to 400 ℃) temperature control, temperature overshoot and the deviation is less than 2 ℃ or lower.

8. The oven can be programmed to control 5 grade temperature , the maximum heating rate up to 40 ℃ / min.

9. The system has a power cut off protection, temperature limit set, the temperature scan, fast automatic cooling and open the door and other functions.

10. Open microcomputer temperature control system optional RS232 communication board and FJ-2000 chromatography workstation, chromatography workstation and instruments to achieve two-way communication between the control and data processing.

11. Full stainless steel large capacity oven (350mm × 280mm × 300mm) can be installed and dual capillary column packed; concealed heating wire structure, more conducive for silica capillary column analysis.

II.The main technical indicators:

1. Temperature control:

Temperature range: room temperature on 7 ℃ ~ 400 ℃ (increments of 1 ℃)

Temperature Object: column oven, ionization chamber, thermal conductivity, injector A, injector B, auxiliary (standby)

Programming phase: five steps

Programming rate: 0.1 ℃ ~ 40 ℃ / min (increments of 0.1 ℃)

2. Flame ionization detector (FID):

Detection Limit: DFID ≤ 1 × 10-11g / s (sample: C16)

Best results: DFID ≤ 5 × 10-12g / s

Baseline noise: ≤ 5 × 10-14A

Baseline drift: ≤ 6 × 10-13A / h

Linear range: ≥ 106