---
title: Expanding Our Polymer Characterization Capabilities with Gel Permeation Chromatography (GPC)
description: RJ Lee Group enhances polymer analysis with a new GPC system, enabling precise molecular weight characterization for improved research and development outcomes.
---

[The Scientific Insights Blog - RJ Lee Group ](https://www.rjleegroup.com/blog)

# [Expanding Our Polymer Characterization Capabilities with Gel Permeation Chromatography (GPC)](https://www.rjleegroup.com/blog/new-gpc)

 Written by [RJ Lee Group](https://www.rjleegroup.com/blog/author/rj-lee-group) | Apr 2, 2026 4:45:00 PM

We’re excited to add Gel Permeation Chromatography (GPC) to our lab, further expanding our ability to deliver high-quality molecular weight characterization of polymers for research, product development, and quality applications.

###### Why GPC Matters:

Gel Permeation Chromatography (GPC), also called Size Exclusion Chromatography (SEC), is the gold standard for measuring polymer molecular weight distributions. This technology provides essential metrics, including the number-average molecular weight (Mn), weight-average molecular weight (Mw), and polydispersity index (PD).

These results help to analyze your polymers' performance, processing behavior, and long-term stability, information key to choosing the right manufacturing technique and how it will behave during its final use.

###### Polymers Commonly Analyzed by GPC 

Our GPC system can analyze a wide range of soluble polymers and oligomers, including:

######  Why RJ Lee Group:

 Our new system is built on the Shimadzu LC-2060C 3D platform, equipped with RID-20A and photodiode-array (UV/Vis) detectors. This versatile configuration enables us to analyze a wide range of polymers with confidence and precision. 

######  **A High-Performance Platform**

The Shimadzu LC-2060C 3D provides accurate flow, steady pressure, and precise temperature—essential for reliable GPC results. Dual detection supports both universal and selective analysis.

- Refractive Index Detection (RID-20A) is best for general polymer analysis and concentration measurements.
- UV Detection targets polymers, copolymers, and additives with UV-active groups.

###### **Standards and Calibration**

We adjust our GPC settings using specific polystyrene standards, which is a reliable way to find out the relative molecular We modify calibration based on polymer type, solvent, and reporting requirements.

 

Unsure whether your polymer meets spec — or why a formulation isn't performing as expected? Molecular weight distribution is often the answer. [Talk to our chemistry team](https://www.rjleegroup.com/contact-rj-lee-group) about how GPC analysis can support your development, QA, or failure investigation work. 

[View full post](https://www.rjleegroup.com/blog/new-gpc)

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