Experis Ultra High Purity gases

Significance of the Topic

Ultra-high purity (UHP) gases play a critical role in analytical chemistry and process control, where even trace impurities can compromise accuracy, sensitivity and equipment lifetime. Their consistent quality underpins reliable chromatographic, spectroscopic and semiconductor processes as well as pharmaceutical production.

Aims and Overview of the Study

This document presents the Experis® UHP gas portfolio, detailing product grades, guaranteed impurity limits and the innovative BIP® purification technology. It aims to help analytical laboratories, QA/QC facilities and industrial users select the optimum gas for their specific applications.

Used Instrumentation

The supply chain for Experis® gases includes high-pressure cylinders ranging from 2 L to packs of 18×50 L banks, plus dedicated gas control equipment:

• Regulators designed and leak-tested for ultra-low contaminant ingress
• Manifolds to distribute gas at precise pressure and flow rates
• Customized installation and commissioning services

Main Results and Discussion

Key findings from the product specifications and performance testing include:

• Guaranteed maximum impurities in ppm or ppb for H₂O, O₂, THC, CO, CO₂, NOₓ, H₂S, CFCs according to grade
• BIP® cylinders deliver <10 ppb O₂ and <20 ppb H₂O for N₂, He, Ar – up to 300× purer than conventional UHP gases
• Extension of BIP® treatment to H₂ achieves <100 ppb O₂, <20 ppb H₂O and <10 ppb total hydrocarbons
• Pharma-grade gases comply with European Pharmacopoeia and GMP II, complete with traceable lot numbers and hard-copy certificates of analysis
• Statistical batch analysis vs. individual cylinder verification ensure conformity to specifications

Benefits and Practical Uses

The high confidence in purity and traceability supports:

• Accurate trace-level analyses in GC, LC-MS, ICP and related techniques
• Prolonged chromatographic column life and reduced dew-point concerns
• Minimal process contamination in semiconductor and electronics manufacturing
• Regulatory compliance and risk mitigation in pharmaceutical API synthesis and QC

Future Trends and Applications

Emerging directions where UHP gases will be pivotal include:

• On-site or on-demand gas generation systems to reduce logistics and cylinder inventory
• Tailored premixed UHP gas blends for specialized detector technologies and reactive chemistries
• Integration with automated analytical platforms and Industry 4.0 data systems
• Further extension of BIP®-like purification to additional gases and trace species

Conclusion

Experis® UHP gases, supported by stringent quality systems (ISO 9001) and advanced BIP® technology, deliver unmatched purity, traceability and performance. This portfolio addresses the stringent demands of modern analytical and process industries, ensuring peace of mind and reliable results.

Reference

• Air Products and Chemicals, Inc. Experis Ultra High Purity Gases, Application Note (2015).