Assuring Finest-Quality Gases for Gas Chromatography


In the years since gas chromatography was {{introduced better than a century ago, it’s become a necessary analytical tool in a number of industries, the pharmaceutical and food industries among the principal ones. Face it: few other techniques for breaking up and analyzing the components of chemical mixtures are as simple, as efficacious, or as exacting. Nowadays, gas chromatography is universal in the quantitative and qualitative analysis of complex chemical compositions and the purification of chemical compounds. It’s also widely used to monitor industrial processes and in the quality-control testing of products.

Of course, the carrier gases required in gas chromatography, beyond having to be either inert or unreactive, must be at least 99.995% pure – higher, in some cases! And that’s where Fresno Oxygen & Welding Supplies/Barnes Welding Supply comes in. No, we haven’t existed as long as gas chromatography. But, as a highly regarded PurityPlus® partner producer-distributor, we’ve been furnishing chemical researchers and various industries with carrier gases of the maximum purity attainable for years now. We guarantee it, too. Why? Because Fresno Oxygen & Welding Supplies/Barnes Welding Supply, like all of the 600 PurityPlus® partner gas production facilities throughout the country, is carefully inspected and certified every year by a trusted independent third-party agency. Our Fresno customers will corroborate the purity we deliver.

Which carrier gas we deliver – helium (He), argon (Ar), nitrogen (N2), carbon dioxide (CO2), or hydrogen (H2), mainly – depends on the kind of detector in use and the chemical components being researched or tested. Generally, we provide gases appropriate for…

  • Thermal Conductivity Detectors,
  • Flame Ionization Detectors,
  • Electron Capture Detectors,
  • Helium Ionization Detectors,
  • Flame Photometric Detectors,
  • Photo Ionization Detectors,
  • GC-Mass Spectrometry,
  • High-Frequency Discharge Detectors,
  • Discharge Ionization Detectors, and
  • Ultrasonic Detectors

Our Fresno customers also depend on us providing the carrier gases they need when they need them. Local availability means as well that our customers have ready access to our technical learning and can better cultivate the kind of close relationship with us that’s beneficial to both parties.

If you’d like more details on how we fulfill the needs of those locally involved in gas chromatography, Contact Fresno Oxygen & Welding Supplies/Barnes Welding Supply today.