GS-Tek is a chromatography manufacturer and laboratory supply company based in Newark, Delaware, USA. Founded in 2009, GS-Tek manufactures and supplies GC columns, packed columns, GC consumables, syringe filters, and related chromatography supplies for analytical laboratories, distributors, OEM partners, and method-development teams.
A. Why GS-Tek
GS-Tek was established to serve laboratories that need reliable chromatography columns, equivalent-performance alternatives, and practical technical support. The company focuses on separation performance, consistent product quality, responsive communication, and application guidance for customers working in petrochemical GC analysis, environmental testing, bioethanol analysis, life sciences, food and beverage testing, forensic testing, and research laboratories.
Focused Product Range
GS-Tek offers more than 4,000 chromatography-related products, including GC columns, packed columns, consumables, supplies, and instrument parts.
Application-Driven Support
The team helps customers select products for challenging applications, improve existing results, and compare equivalent column directions.
Value and Availability
GS-Tek aims to provide quality products, practical technical support, and responsive worldwide delivery through direct service and distributor channels.
B. Our Expertise
GS-Tek has more than 30 years of experience in chromatography column product development, manufacturing, and application support. The company’s technical background includes stationary phase design, column preparation, rigorous quality control, sample preparation, instrument configuration, software, data analysis, and method development.
- Capillary GC columns, packed columns, PLOT columns, guard columns, and application-specific gas chromatography columns
- Advanced manufacturing technologies, including stationary phase design, column preparation, and quality control
- Sample preparation knowledge, including isolation, extraction, and concentration workflows
- Method development for gas chromatography applications, including emerging areas such as PFAS and natural products
- Solution-based analyzers, instrument service, sampling automation, and online/at-line sampling technique development
C. Global Customers
GS-Tek serves the global market through international marketing and sales channels, including distributors in many countries. The company welcomes distributor partners interested in introducing GS-Tek products to local markets and building long-term relationships with laboratories, method developers, and industrial customers.
Customer segments include analytical laboratories, distributors, OEM partners, petrochemical and refinery laboratories, environmental testing labs, bioethanol and new-energy testing labs, food and beverage labs, life science and pharmaceutical teams, forensic laboratories, academic researchers, and industrial quality-control groups.
D. OEM & Partnership
GS-Tek supports partnership areas that include OEM/private-label supply, column customization and development, chromatography method development, data analysis, sample preparation, sampling automation, online and at-line sampling technology, and laboratory setup consultation.
OEM / Private Label
GS-Tek offers private-label and OEM product opportunities for industrial partners, with competitive pricing and responsive delivery expectations.
Custom Development
Partnership discussions can include custom column requirements, method-specific configurations, instrument parts, and application-driven product development.
E. Awards
GS-Tek’s growth has been supported by international business development, export activity, and recognition from U.S. and Delaware trade-related programs.
- Recipient of the U.S. President’s “E” Award for export achievement in 2014
- Listed as an innovative American international manufacturer in a U.S. federal government trade publication in 2015
- Recipient of multiple STEP funding grants from the U.S. Department of Commerce and Delaware Export Service since 2010
- Featured by Delaware Export Services, local business organizations, and Chinese community organizations several times since 2012
F. Founder Story
GS-Tek was founded in 2009 in Newark, Delaware, USA, by Dr. Zack Ji to manufacture a wide range of gas chromatography columns, including capillary and packed columns. Before starting GS-Tek, Dr. Ji spent 15 years as a lead product developer and technical expert at a well-known chromatography column manufacturer.
Across more than 30 years of R&D and business practice, Dr. Ji has built experience in chromatography and separation science, analytical instrumentation including mass spectrometry, biological sample isolation and purification, and technology venture development. This technical foundation continues to shape GS-Tek’s focus on chromatography products, application support, and new product development.
GS-Tek’s long-term mission is to help customers obtain the right products and technologies for their analyses, improve analytical results, solve separation problems, and support work in areas such as environmental protection, new energy development, carbon reuse, air and water monitoring, and safer analytical testing.