Fast and efficient analysis is a must for environmental testing. Gas chromatography is extremely beneficial when it comes to the analysis of soil, soil gases, and groundwater, which can help you make the best decisions regarding a project. Below, learn why geoscientists rely on this testing method. 

How Does Gas Chromatography Work?

In the most basic terms, chromatography splits substances into their component parts so they can be examined on a deeper level. This involves substances in many different states of matter, such as solids, liquids, and gases. As different states of matter interact with each other, there is an exchange of molecules, which is a process known as adsorption. As molecules are exchanged, matter separates so it can be analyzed. 

Substances are injected into a gas chromatograph machine using a syringe and heated until they vaporize. A neutral gas is then introduced, which acts as a carrier for the vaporized substances as they travel through a glass or metal tube that also contains a liquid. This liquid must have a high boiling point, which helps with adsorption and separation of the substance’s component elements. These elements are analyzed by an electronic detector, the results of which can be read by the geoscientists performing the test. 

What Are Its Applications?

Gas chromatography is used across many different industries due to the benefits the testing technique offers. Because every sample provided is analyzed down the molecular level, it helps keeps analytical costs manageable. Results are available in real-time, which is ideal for fieldwork. There are many applications of gas chromatography, including toxicology analysis, pharmaceutical testing, environmental studies, soil sampling, cosmetics, and biological sampling.

As a premier provider of geological services in Anchorage, AK, gas chromatography is just one of the many testing methods used by GeoTek Alaska. With the help of their skilled geoscientists, you’ll be privy to the results of your analysis on an expedited basis. Other services include the sampling of soil and groundwater, utility locating, drilling, and well monitoring. Learn more about gas chromatography service online or call (907) 569-5900 for more information.