AU138: Determination of Ethanolamines in Industrial Waters by Cation-Exchange Chromatography

Instrument Type: IC

Ion chromatography has been successfully used to determine amines in a variety of chemical, petrochemical, and environmental samples. However, analysis of some samples can be hampered by large concentrations of one or more amines, making the determination of trace concentrations of other amines and cations difficult. The selectivity of the IonPac CS11 column with an methanesulfonic acid eluent addresses many of these challenging analyses. This AU describes the setup and performance of this method. In this record we provide the consumables to update this method with eluent generation.

TN122: Separation of Heat Stable Amine Salts in Methyldiethanolamine (MDEA) SolutionsUsing High-Pressure IC

Instrument Type: IC

Sour gas is treated with amine and recycled amine (scrubbing) solutions to absorb toxic and undesirable H2S and CO2 create sweet natural gas. Salts of organic acids and sulfur species, heat stable amine salts (HSAS) can concentrate over time. Analysis of these HSAS are needed to assess the efficiency of scrubbing solution and can be quite challenging. In this technical note, HSAS in methyldiethanolamine (MDEA) were separated with high efficiency on a 2 mm i.d. IonPac AS11HC-4μm column using a high pressure ion chromatography system.