i3 - Aalto Industry and Innovation Infrastructure / Chromatography

Chromatography is a laboratory technique for the separation of a mixture. The mixture is dissolved in a fluid called the mobile phase, which carries it through a structure holding another material called the stationary phase. The various constituents of the mixture travel at different speeds, causing them to separate. The separation is based on differential partitioning between the mobile and stationary phases. Subtle differences in a compound's partition coefficient result in differential retention on the stationary phase and thus affect the separation.

Gas Chromatographs / Mass Spectrometry (1 pcs)
Gas chromatography (GC) is an analytical technique for separating volatile compounds in a sample, while mass spectrometry (MS) is used to identify the components by analyzing their molecular structure. Together, GC-MS is a powerful tool for analyzing complex mixtures in fields like environmental analysis, forensics, and pharmaceuticals.
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Thermal Desorption (1 pcs)

Thermal desorption spectroscopy (TDS), also known as temperature programmed desorption (TPD) is the method of observing desorbed molecules from a surface when the surface temperature is increased. Many researchers prefer the name TPD because it is not a spectroscopic method.

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Thin layer chromatography (1 pcs)
Thin layer chromatography (TLC) is a chromatographic technique used for separating and analyzing mixtures of chemical compounds. It involves the use of a thin layer of adsorbent material, such as silica gel or alumina, coated onto a flat plate or sheet as the stationary phase. The mixture to be separated is applied as spots or bands near the bottom of the plate, and the plate is then placed in a developing chamber containing a solvent or mobile phase. As the mobile phase moves up the plate through capillary action, it carries the compounds with it. Different compounds travel at different rates based on their affinity for the stationary phase and the mobile phase's composition. After development, the plate is visualized using UV light, staining reagents, or by other detection methods to identify and quantify the separated compounds. TLC is a simple, cost-effective, and rapid technique widely used in laboratories for qualitative analysis, compound identification, and purity testing.
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