Restek is a leading developer and manufacturer of chromatography columns, and also provides other products such as sample preparation and collection tools, reference standards, and accessories for instrumentation related to the quality control of air, water, soil, foods, plants, pharmaceuticals, chemical and petroleum products.

It is worth noting that this company is very active in providing educational information free of charge, and is considered an essential reference for many specialists in the field of chromatography.

We recommend that you visit their site, as you will find many videos as well as other tools that will help you a lot in chromatography.