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Advanced Capillary Column Technology Improves Analysis of Volatile Amines

Restek Corp.
22 Jul 2013

Short-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.

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Gas ChromatographyGas chromatography (GC) is an analytical technique used to separate and quantitate mixtures of small and volatile compounds. Gas chromatographs or GC systems include components such as GC columns, detectors, pumps and autosamplers. Choose from packed or capillary GC columns, flame ionization (FID), photoionization (PID) electron capture detectors and selective or non-selective detectors. Find the best gas chromatographs in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.LC-MSLC-MS (liquid chromatography-mass spectrometry) systems and equipment are used for separation and quantitative analysis of complex mixtures, combining liquid chromatography and mass spectrometry. Quantify proteins, contaminants, pesticides or screen for drug metabolites with a high level of sensitivity. LC-MS systems and equipment include reverse phase, normal phase and specialized columns integrated with various MS detectors such as time-of-flight (TOF), quadrupole, orbitrap or ion trap mass analyzers. LC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzer give greater sensitivity and resolving power to your analysis. Find the best LC-MS equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.GC-MS GC-MS (gas chromatography-mass spectrometry) instruments and equipment are used to separate, quantify and identify mixtures of small and volatile compounds, such as polycyclic aromatics, fatty acids and alcohols. Often used in drug detection, forensic investigation and environmental analysis for pesticides and contaminants, GC-MS is a powerful addition to your lab’s analytical capabilities. GC-MS/MS instruments equipped with a qTOF or triple quadrupole analyzers can give greater sensitivity and resolution to your analysis. Find the best GC-MS instruments and equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.VolatilesVolatiles are a group of compounds that have a low boiling point and evaporate at room temperature. Volatiles, such as volatile organic compounds (VOCs), can be used to determine shelf-life of food samples. GC-MS is typically used to analyze volatiles.AminesPetrochemicalsPetrochemicals are chemical products derived from petroleum or natural gas, essential in creating plastics, fuels, and synthetic materials. Analytical techniques help ensure product quality and environmental compliance. Browse equipment for petrochemical analysis in our product directory.

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Advanced Capillary Column Technology Improves Analysis of Volatile Amines