GPC-IR is a High Temperature Gel Permeation Chromatograph dedicated to Polyolefin analysis. It incorporates an infrared detector with sensors for concentration and composition measurement of short chain branching or carbonyls. It can be configured as a Quadruple detector system with Concentration, Viscometer, Multi-Angle Light Scattering (DAWN® HELEOS™ II 8 or 18 angle of Wyatt Technology) and Composition detectors. A very sensitive composition-concentration MCT Infrared Detector (IR5 MCT) can be additionally incorporated for the analysis of low branching content in HDPE pipe resins.

GPC-IR columns oven is independent from detectors/injector oven, preventing the columns from suffering during maintenance tasks. This design allows to perform detectors/injector preventive maintenance or to change the loop injection volume without affecting the columns temperature.

The autosampler is a separate unit with 70 vials of 10ml attached to the detectors/injector oven through a heated interface. Sample preparation just consists of weighing the samples, since the vials are filled automatically with fresh solvent. They stay in the high temperature oven just the needed time for dissolution, to minimize sample degradation. After dissolution time (different dissolution times can be selected for each vial), the sample is automatically filtered by an in-line filter before the injection. There is no vial transfer along the whole process.

GPC-IR Virtual Instrumentation Software provides instrument control and monitoring of the whole process and signals generated. Calculations are performed by means of GPC One, the most comprehensive calculations software, developed in collaboration with the industry leaders, is capable of integrating all the detectors signals into a single package. The system includes remote control for an easy and fast diagnosis.