The Applied Technical Service Family of Companies (ATS FoC) operates an ISO-accredited size exclusion chromatography lab. Our SEC services characterize polymers molecules by size, helping determine the physical properties of polymer samples. Our experienced technicians provide accurate data and support for quality control, predicting processability, or failure analysis.
When Should You Partner with a Size Exclusion Chromatography Laboratory?
Partner with a size exclusion chromatography (SEC) laboratory when your polymer project requires precise determination of molecular‑weight distribution, polydispersity, or oligomer content beyond in‑house instrumentation or expertise. Engage an SEC lab during polymer development, scale‑up, or quality control to obtain validated, reproducible data supporting formulation optimization, batch release, and compliance with regulatory or customer specifications.
Why Choose Our Size Exclusion Chromatography Laboratory?
Our ISO/IEC 17025-accredited lab has skilled technicians, modern equipment, and experience with many testing methods. We work with you to understand your goals and create testing plans that deliver clear, useful data.
Our laboratory uses the following approaches to analyze polymers:
Detection Technologies
- Multi-Angle Light Scattering (MALS)
Determines true, absolute molecular weight by measuring scattered light at multiple angles. - Refractive Index (RI) and UV/Vis
Estimate relative molecular weights using calibrated standards and detector responses.
Mobile Phase Options
Standard Organic Solvents
- DMAc, DMF, and similar solvents
These organic solvents are often used to dissolve various polymers.
Aqueous Systems
- Water-based buffers
Buffered water solutions are used when samples require controlled pH.
High-Temperature Trichlorobenzene
- Trichlorobenzene at elevated temperatures
This method is used for polyolefins like polypropylene and different types of polyethylene (HDPE, LDPE, LLDPE, UHMWPE) and their copolymers.
High-Temperature Chloronaphthalene
- Chloronaphthalene at elevated temperatures
This method is used to analyze polyphenylene sulfide (PPS).
Hexafluoroisopropanol
- HFIP
HFIP is the best solvent for dissolving nylons, polyesters, and PLGA with high glycolide content.
About the ATS FoC and SGS
The ATS Family of Companies is a reputable group of businesses, experts, and facilities specializing in testing, inspection, calibration, consulting, and certification services. We have locations across the continental US and help clients ensure their products and operations comply with specifications and regulations.
The ATS FoC joined SGS in 2026 in a historic merger that strengthened our ability to meet evolving client demands. We will continue to operate as before, emphasizing technical expertise, precision, and customer service.
Contact Us
Fill out our web form or call +1 (888) 287-5227 to discuss your testing needs, get a quote, or learn how our size exclusion chromatography services support quality assurance, product development, and material analysis.
