GS-Tek is a Delawarean manufacturer of chromatography columns and accessories. We provide worldwide analytical scientists with the innovative and quality products and tools they need from scientific fronting research including new materials and global warming, daily duties of environmental monitoring, safety test of foods and consumables, development of pharmaceuticals and life sciences, quality control of chemicals, petroleum and energy products, to law enforcement and defense activities including forensics, drugs, explosive fuels, gases, synthetic airs, chemical weapons, and others. We supply the widest ranges of chromatographic products, from columns and consumables, lab supplies, instrument spare parts to solution based instrument analyzers, as one-stop chromatography shop. We also provide services of chromatographic related separation research and development by collaborating with our customers.