Gases that meet specific purposes, including single gases or mixed gases. There are 259 types of single gases, including 115 electronic gases, 63 organic gases, 35 inorganic gases, 29 halogenated carbon gases, and 17 isotopic gases.

Special gas analysisThe helium ion gas chromatograph is used for the analysis of trace impurities in specialty gases. The PDIHID helium ion gas chromatograph technology is employed to provide our customers with accurate results and meet the requirements of easy operation and maintenance. The user-friendly interface is used as a guide, allowing operators to apply it freely. The helium ion gas chromatograph can provide you with good protection at any time

1、 Special gas analysisAccording to the standard：

GB/T 28726-2012Gas analysis - Helium ionization gas chromatography method

2、 Special gas analysisPerformance indicators:

1Temperature 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: 0 ℃~40 ℃

Cooling rate: within 7 minutes (350 ℃ to 50 ℃)

2Helium ionization detector (PDD):

Discharge mode: Pulse discharge

Baseline noise: ≤ 0.1mv

Baseline drift: ≤ 0.5mv/30min

Detection limit: ≤ 1.0 × 10-10g/ml

3Carrier gas purifier:

Purified gases: He, Ar, Ne, Kr, Xe, Rn

Operating pressure: 1000Psi

Removing gases: H2, O2, N2, CO, CO2, CH4, H2O, NO, NH3, CF4, etc

Residual concentration: ≤ 10pppb

4Workstation performance:

Communication interface: RS232/USB interface

High precision: 24 bit high-precision A/D

Resolution: ± 1UV

Input voltage range: -5mv to+1v

Sampling frequency: 20 times/second

Dynamic range: 106

Integral sensitivity: 1 μ v • sec

Linearity:<± 0.1%. < span=''>

Reproducibility: 0.06%.

5Other parameters: size, weight, power supply:

Dimensions: Width 655mm x Height 500mm x Depth 480mm

Weight:~48kg

Power supply: 220V ± 22V, 50Hz, power ≥ 2kW

3、 Special gas analysis instrumentSystem configuration:

(1) GC-9560 gas chromatograph (2) helium ionization detector (PDHID)

(3) Central cutting system (4) multi column box system

(5) Helium Purifier (6) Standard Gas

(7) Chromatography Column (8) Oxygen Adsorption and Reduction System

(9) Special pressure reducing valve for carrier gas (10), no dead volume dedicated sampling valve

(11) GC-9560V4.0 Reverse Chromatography Workstation