Advanced Capillary Column Technology Improves Analysis of Volatile Amines
22 Jul 2013Short-chain volatile amines, such as monomethylamine, diethylamine, and triethylamine, are of great importance in the petrochemical industry. They are used as gas-scrubbing agents to remove hydrogen sulfide from refinery and natural gas streams, as well as for removing carbon dioxide during the production of ammonia. Gas chromatographic analysis of volatile amines can be quite challenging due to their basic nature and high polarity. Amines will interact with active sites in the analytical column and along the sample pathway, resulting in broad, tailing peaks that are difficult to integrate accurately. In this application note, learn how capillary column technology can improve analysis of such compounds.
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Rtx®-Volatile Amine Columns
Restek Corp.The Rtx®-Volatile Amine column was designed specifically for analyzing volatile amines in difficult matrices, such as water. The unique base deactivation creates an exceptionally inert surface for these sensitive compounds, resulting in highly symmetrical peaks which allow low detection limits. The stable bonded phase yields a column that is not only retentive and highly selective for these compounds, but is also very robust and able to withstand repeated water injections.Each Rtx®-Volatile Amine column is held to stringent quality specifications and tested with a specially designed test mix that includes basic compounds to ensure exceptional inertness, reliability, and reproducibility.Rtx®-Volatile Amine Columns Features: Unique selectivity for baseline resolution of all volatile amines. Excellent inertness assures accuracy and sensitivity for volatile amines, including free ammonia. Highly robust phase withstands repeated water injections, resulting in longer column lifetime. High temperature stability (290 °C) ensures elution of amines up to C16 and allows contaminants to be removed by “baking out” the column.