如何对气体样品取样和检测（氢气或氮气或其他气体）

Jason

如何对气体样品取样和检测（氢气或氮气或其他气体）？

氢气是GMP步骤的最后一步物料，至少要有鉴别，怎么取样及检测（含纯度）？其他气体呢？

cph2345

建议接出来个管子直接在线测。

河西智叟

1、通过减压和稳压，在线做
2、有种东西叫氧气袋。。

千年一等

值得学习学习

Jason

河西智叟 发表于 2015-4-2 10:03
1、通过减压和稳压，在线做
2、有种东西叫氧气袋。。

是的，有四合一袋，但是没有氢气！

beiwei5du

cph2345 发表于 2015-4-2 09:41
建议接出来个管子直接在线测。

在线侧的精度有多高呢？？？是什么牌子的装置呢？？？谢谢！

beiwei5du

河西智叟 发表于 2015-4-2 10:03
1、通过减压和稳压，在线做
2、有种东西叫氧气袋。。

在线测定的装置牌子是什么呢？？精度能达到多少呢？？？网上有这种装置！
Hydrogen analyzer / in-line / explosion-proof / process
HY-OPTIMA™ 2740


Characteristics

• Gas type:
  hydrogen
• Other characteristics:
  in-line
• Protection level:
  explosion-proof
  
  

• Function:
  process
  
  

Description

HY-OPTIMA™ 2740 Explosion Proof In-line Area Hydrogen Analyzer (% H2S & CO)
H2scan’s Series 2700 real-time hydrogen specific process analyzers are designed for ease of use, interface flexibility and true process control. The HY-OPTIMA™ 2740 is a solid-state sensor configured to operate in background gas streams having carbon monoxide, concentrations up to 20% by volume, hydrogen sulfide concentrations up to 10% by volume, up to 95% relative humidity, and temperatures up to 65oC. The HY-OPTIMA™ 2740 is ideal for hydrogen production and petrochemical applications where real-time measurements of hydrogen can increase process plant efficiencies, improve diagnostics and enhance maintenance management translating into higher profitability.
Performance

Hydrogen Sensitivity Range:

0.5% to 100% hydrogen at 1 ATM on a volume basis in a single or multi-component gas background

Response Time: T90 < 60 sec
Ingress Protection: IP64 capable
Recommended Verification Interval: 90 days
Product Life Expectancy: 10 years
Accuracy(*):
± 0.3% absolute for 0.5 to 10% H2
± 1.0% absolute for 10 to 100% H2
Drift/week:
± 0.2% absolute for 0.5 to 10% H2
± 0.4% absolute for 10 to 100% H2
Repeatability:
± 0.2% absolute for 0.5 to 10% H2
± 0.4% absolute for 10 to 100% H2
Linearity:
± 0.2% absolute for 0.5-10% H2
± 0.4% absolute for 10-100% H2