GC-9560-HGHigh purity carbon dioxide analysis using helium ion chromatographySuitable for H in high-purity carbon dioxide gas₂、O₂（Ar）、N₂、 CH₄、 COclassThe detection of trace impurities is carried out using a highly sensitive helium ionization (PDIHID) detector equipped with central cutting and blowback technology. The instrument is equipped with an injection switching valve with a blowback protection gas path and an imported helium purifier. Through non dead volume sampling or online injection methods, high-purity hydrogen gas can be obtained in one goThe above-mentioned impuritiesDetection, with a detection limit of ppb and a repeatability RSD of ≤ 1%.
The national standard GB/T 28726-2012 "Gas Analysis - Helium Ionization Gas Chromatography Method", which was mainly drafted by Hua Ai Chromatography, has been officially announced and implemented since February 1, 2013.

1High purity carbon dioxide analysis using helium ion chromatographyApplicable standards:

• GB/T 23938-2009High purity carbon dioxide
• GB/T 28726-2012 "Gas Analysis - Helium Ionization Gas Chromatography Method"

IIHigh purity carbon dioxide analysis using helium ion chromatographyTechnical parameters:

1. Detection limit (ppb):

2. Temperature control indicators:

• Column box: 8 ℃ -400 ℃ at room temperature with an accuracy of ± 0.1 ℃
• Sample injector: Accuracy ± 0.1 ℃ at room temperature between 8 ℃ and 400 ℃
• Detector: Accuracy ± 0.1 ℃ at room temperature between 8 ℃ and 400 ℃
• Temperature control quantity: eight channels
• Program heating: 8th order
• Heating rate: 1 ℃~40 ℃
• Cooling rate: within 7 minutes (350 ℃ to 50 ℃)

3. Helium ionization detector (PDD):

• Discharge mode: Pulse discharge
• Baseline noise: ≤ 0.1mv
• Baseline drift: ≤ 0.5mv/30min
• Detection limit: ≤ 1.0 × 10-10g/ml

4. Carrier gas purifier:

• Purified gases: He, Ar, Ne, Kr, Xe, Rn
• Operating pressure: 1000Psi
• Gas removal: H₂、 O2, N2, CO, CO2, CH4, H2O, NO, NH3, CF4, etc
• Residual concentration: ≤ 10pppb

5. Workstation performance:

• Communication interface: RS232/USB interface
• High precision: 24 bit high-precision A/D
• Resolution: ± 1UV
• Input voltage range: -5mv to+1v
• Sampling frequency: maximum 20 times/second
• Dynamic range: 106
• Integral sensitivity: 1 μ v • sec
• Linearity:<± 0.1%.
• Reproducibility: 0.06%.

6. Other parameters: size, weight, power supply:

• Dimensions: Width 655mm x Height 500mm x Depth 480mm
• Weight:~48kg
• Power supply: 220V ± 22V, 50Hz, power ≥ 2kW

3、 High purity carbon dioxide helium ion chromatographSystem configuration:

(1) GC-9560-HG high-purity carbon dioxide analysis helium ion chromatograph (2) helium ionization detector (PDIHID)
(3) Central cutting system (4) multi column box system
(5) Helium Purifier (6) Standard Gas
(7) Chromatography Column (9) Oxygen Adsorption and Reduction System
(10) Special pressure reducing valve for carrier gas (11), no dead volume dedicated sampling valve
(12) GC-9560V4.0 Reverse Chromatography Workstation

4、 Analysis spectrum: