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BM-7890 PDHID Helium Ion Gas Chromatograph

I. Key Components with Purge Protection Valve: Positive pressure protection/Super

sealing/Special materialPDHID detector: Award-winning product from the USA/PDPID, 

PDECD modes. 

Gas purifier: Dedicated for PDHID/Purifies 99.999% high-purity helium, reducing 

impurities to ≤10ppb/Long service life.


II. Instrument Features: 

① Provides complete solutions, including installation, commissioning, 

and operation services, ensuring high reliability and long-term trouble-free operation. 

② Gas flow control offers both manual and EPC options for ease of use, and features network 

transmission for unattended statistical analysis and monitoring. 

③ Utilizes VICI company technology.


I. Key Components
Purge-protected valve: Positive pressure protection/Super sealing/Special materials
PDHID detector: Award-winning product from the USA/PDPID, PDECD modes
Gas purifier: Dedicated to PDHID/Purifies impurities to ≤10ppb for 99.999% high-purity helium/Long service life.

II. Instrument Features: ① Provides a complete solution, including installation, commissioning, and operation services, ensuring high reliability and long, trouble-free operation time. ② The gas path control offers both manual and EPC modes for convenient operation, and features network transmission for unattended statistical analysis and monitoring. ③ Utilizes an original imported PDHID detector from VICI Corporation, which won an analytical instrument award and has been widely promoted and applied for many years. ④ When analyzing sulfur-containing samples, the instrument employs the SilcoTek® silicon passivation treatment process from the USA to ensure analytical accuracy. ⑤ A special injection valve with a protective cover is used to prevent cross-contamination between the sample and the atmosphere, or the escape of toxic samples during injection. ⑥ The injection valve, switching valve, and gas path system are all original imported components from VICI Corporation. ⑦ To achieve the best minimum detection limit, the instrument thoroughly and specifically purifies the high-purity helium carrier gas using an HP2 gas purifier.

III. Analysis Report of High-Purity H2
Analysis conditions: Helium carrier gas pressure: 0.46 MPa; Temperature: Column oven 1: 65℃, Column oven 2: 72℃, Column: 55℃, Detector: 150℃; Injection volume: 1 ml;

No.Stock Time (保留时间）
NameDensity （ppm）Peak Area
11.999O21.891495609
23.374N21.942343692
35.074CH42.052122156
46.837CO22.021388244
59.786CO2.01920476


TOTAL                                                               9.91                                            8270177

Component123456
Average ValueStandard DeviationRSD(%)
O21.881.891.8581.8261.861
1.891

1.8676666670.0247763331.326592868
N21.9541.941.9841.8611.9142.008
1.94350.0521526612.683440212
CH42.122.052.0792.0952.0452.048
2.0728333330.030551051.473878757
CO21.9752.021.9691.9851.9841.988
1.9868333330.0177247470.892110425
CO2.162.012.1322.0522.0662.063
2.08050.0552657222.656367303


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