Agilent 1260 Infinity II High-Temperature GPC/SEC System

The Agilent 1260 Infinity II High-Temperature GPC/SEC System is an advanced analytical platform designed for the characterization of polymers that require elevated temperatures for dissolution and chromatographic analysis. Developed by Agilent Technologies, this system is particularly suitable for polyolefins and other engineering polymers, including polyethylene and polyamides. It helps researchers determine molecular weight distributions and investigate polymer properties that influence material processing, quality, and performance.

Key Features and Advantages

1. High-Temperature Polymer Analysis

One of the system's main advantages is its ability to operate at temperatures up to 220 °C. This capability enables the analysis of polymers that are difficult to dissolve under conventional GPC conditions. Maintaining an elevated temperature throughout the sample pathway helps minimize precipitation and supports consistent chromatographic measurements.

2. Accurate Molecular Weight Characterization

Gel permeation chromatography (GPC), also known as size exclusion chromatography (SEC), separates dissolved polymer molecules according to their hydrodynamic size in solution. With suitable calibration standards and analytical conditions, the system can determine molecular weight averages and molecular weight distributions. These measurements are valuable for evaluating polymer batches, monitoring manufacturing consistency, and supporting research and development.

3. Integrated Temperature Control

The system incorporates temperature-controlled components designed for high-temperature operation. Stable thermal conditions help keep polymer samples dissolved during analysis and improve reproducibility. The system supports high-temperature columns and can accommodate additional detection technologies according to the laboratory's analytical requirements.

4. Flexible Detection Options

A refractive index detector (RID) can be used for concentration detection, while optional high-temperature light scattering, viscometry, and evaporative light scattering detectors can provide additional information about polymer molecular weight, size, and structure. The appropriate detector configuration depends on the polymer, solvent, and measurement objectives.

Agilent

+1

Technical Specifications

The following specifications are based on Agilent's published product information and user manual. Actual configuration may vary by system generation and installed modules.

Applications in Polymer Research

The Agilent 1260 Infinity II High-Temperature GPC/SEC System is widely suited to polymer research, plastics manufacturing, petrochemical laboratories, and quality control facilities. It can help researchers evaluate molecular weight distributions, compare polymer batches, and investigate how molecular characteristics influence processing behavior and finished-product properties.

For polyethylene and polypropylene, high-temperature analysis helps dissolve materials that may not be sufficiently soluble at lower temperatures. With suitable columns, solvents, calibration standards, and optional detectors, laboratories can obtain additional information about molecular size and polymer architecture.

Conclusion

The Agilent 1260 Infinity II High-Temperature GPC/SEC System is a specialized solution for laboratories that need reliable molecular characterization of polymers under elevated-temperature conditions. Its temperature capability of up to 220 °C, automated sample handling, and flexible detection options make it valuable for polymer development and routine quality control.

When purchasing a used or refurbished unit, verify the high-temperature oven, heated sample pathway, pump, autosampler, detector, software, and available service history. Confirm that all required modules are included and that the complete system can pass a performance test under your intended analytical conditions.