Gas Chromatography Customers who use critical gases recognize the need for high-quality carrier gases for use in gas chromatography and all things analytical. Throughout the past forty years, both the detection limitations of current technology and the constantly-evolving analytical methods have resulted in an increased demand for these gases. The gas specifications that were once widely accepted in the 1970s are now found insufficient and unsuitable for our 21st century needs. The effort to meet and exceed these ever-changing specification demands requires a steady investment by gas suppliers in instrumentation and purification equipment, education to learn proper utilization of these products and methods, and in repeated testing and review of production and quality procedures. In order to stay ahead of customer’s needs, our team at PurityPlus® is always working hard and investing our time and resources to constantly improve our ability to manufacture and certify the carrier gases you need. Listed below are the PurityPlus® Specifications for these gases: PurityPlus® Helium, UHP, 5.0 Ultra Carrier, 5.5 Chromatographic, 6.0 Minimum Purity 99.999% 99.9995% 99.9999% Oxygen < 2 ppm < 1 ppm < 0.5 ppm Moisture < 2 ppm < 1 ppm < 1 ppm Hydrocarbons <0.5 ppm < 0.5 ppm < 0.2 ppm Nitrogen < 4 ppm < 1 ppm Carbon Monoxide < 0.1 ppm Carbon Dioxide <0.1 ppm These specs can help you find the precise gas that best fits your exact needs. With that being said, it’s important to realize that PurityPlus® gases aren’t only notable for their unmatched standards, but we also have best in class processes to further guarantee you receive the best gases on the market. If you often utilize high-purity gases, PurityPlus® should be your number one choice. Unlike most of our competition, we can provide the products you need to meet your gas requirements locally. So use the Find Your Nearest Provider tool to locate your nearby PurityPlus® distributor and learn more about how you can meet all of your carrier gas needs. For more information, explore our website and catalog or give us a call at 877-81P-PLUS (817-817-7587).