Used Agilent 1260 GPC System

The Agilent 1260 GPC System, specifically the Infinity II series, is a high-performance modular platform designed for Gel Permeation Chromatography (GPC) and Size Exclusion Chromatography (SEC). It provides accurate and reproducible characterization of molecular weight distributions for synthetic polymers, proteins, and macromolecules across academic, pharmaceutical, and industrial R&D laboratories.

System Configuration & Technical Specifications

The system is built around a flexible Infinity II liquid chromatography chassis, configured with specialized modules for high-stability polymer analysis:

• Solvent Delivery: Utilizes an isocratic pump (G7110B) with a pressure limit up to 600 bar and a flow rate range of 0.001–10 mL/min, ensuring pulse-free solvent delivery critical for precise retention times.

• Temperature Control: Features a high-capacity column compartment (G7116A/B) capable of housing up to three 30 cm GPC columns. It offers precise temperature control from -10°C to 80°C (with optional high-temperature kits extending to 220°C for polyolefin analysis), minimizing baseline drift.

• Detection Suite: Primarily employs a Refractive Index Detector (RID) as the standard concentration detector. The system supports multi-detector setups, including UV-Vis (DAD), Viscometer, and Multi-Angle Light Scattering (MALS), enabling absolute molecular weight and conformational analysis without relying solely on column calibration.

• Automation: An integrated autosampler (G7129A/B) allows for unattended operation of large sample batches, with high injection volume precision (RSD < 0.5%).

Key Performance Advantages

• Exceptional Precision: The system delivers outstanding retention time reproducibility (RSD < 0.08%) and molecular weight accuracy (< 2% error), which is vital for monitoring batch-to-batch consistency in polymer manufacturing.

• Wide Application Range: It effectively analyzes materials from low-MW dextrans (200 Da) to ultra-high MW polymers (up to 1×10^8 Da), covering applications in biopharma (protein aggregation), plastics, and rubber industries.

• Software Integration: The dedicated Agilent GPC/SEC software streamlines data acquisition and processing, offering multiple calibration algorithms and compliance features for regulated environments.

Operational Benefits

A significant feature is its dual-role capability; the same hardware can be quickly reconfigured for standard HPLC applications, maximizing laboratory asset utilization. Furthermore, features like automatic solvent recycling during non-eluting periods enhance operational sustainability and reduce running costs.

In summary, the Agilent 1260 GPC System is a versatile and robust analytical tool that combines the reliability of Agilent's Infinity II platform with specialized GPC workflows to deliver trusted data for polymer characterization.