Monoethylene glycol (MEG) is employed before further processing of natural gas to remove water content. Glycol degradation may take place when high temperatures are applied as part of the process, forming formic, acetic, and glycolic acids.
These are unwanted reactions as the acids formed are corrosive in nature. This article discusses the application of ion-exclusion chromatography with conductivity detection following inverse suppression to determine the presence of organic acids in MEG.
Metrohm inline ultrafiltration.
|Metrosep Organic Acids - 250/7.8
|Metrosep Organic Acids Guard/4.6
||1.0 mmol/L sulfuric acid
||100 mmol/L lithium chloride
Conductivity detection following the inverse suppression
|930 Compact IC Flex Oven/ChS/PP/Deg
|IC Conductivity Detector
|858 Professional Sample Processor
|MSM Rotor A
|Adapter sleeve for Suppressor Vario
|IC equipment: Inline Ultrafiltration
At Metrohm is one of the world’s most trusted manufacturers of high-precision instruments for chemical analysis. Metrohm was founded in 1943 by engineer Bertold Suhner in Herisau, Switzerland. Today, Metrohm is represented in 120 countries by subsidiaries and exclusive distributors. The global Metrohm Group also includes the Dutch companies Metrohm Applikon and Metrohm Autolab, manufacturers of online analyzers and instruments for electrochemical research, respectively. Recently, the Metrohm Group was joined by Metrohm Raman, a leading manufacturer of handheld Raman spectrometers.
Metrohm is the global market leader in analytical instruments for titration. Instruments for ion chromatography, voltammetry, conductivity, and stability measurement make the Metrohm portfolio for ion analysis complete. Instruments for Near-infrared and Raman spectroscopy are another, strongly growing segment of the Metrohm portfolio.
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