• Inert Sample Cylinders for Trace Levels of Sulphur Compounds

Analytical Instrumentation

Inert Sample Cylinders for Trace Levels of Sulphur Compounds

Jan 14 2008

At parts-per-billion levels, active sulphur-containing compounds quickly and completely react with stainless steel surfaces, making it impossible to accurately quantify these important refinery products and natural gas contaminants when using conventional sample cylinders, sample loops and valves, and tubing systems.
Sulfinert®-treated systems permit accurate determination of these compounds, even after prolonged storage. Data in Restek’s (USA) 4-page application note show greater than 85% to greater than 90% recovery of 17ppb hydrogen sulphide and other sulphur compounds after 54 hours in a Sulfinert®-treated sample cylinder.

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