The document describes the features and characteristics of commercial polyethylene, including the requirement of elevated temperature and aggressive solvent systems for high-performance size exclusion chromatography (HPSEC). It also highlights the stability of ZORBAX PSM size exclusion columns with aggressive solvent systems. The document provides detailed analysis conditions and information about the application in polymers. It is authored by Robert Ricker, an application chemist at Agilent Technologies.
This document provides application highlights for the analysis of polyethylene using High Performance Size Exclusion Chromatography (HPSEC). It notes that such analysis requires operation at elevated temperatures, such as 140°C, and the use of aggressive solvent systems like o-dichlorobenzene. The ZORBAX PSM size exclusion columns are highlighted for their stability when used with these aggressive solvents.
| Mobile Phase | o-Dichlorobenzene |
|---|---|
| Flow Rate | 0.75 ml/min |
| Temperature | 140°C |
| Detector | Infrared (3.4 pm) |
The process requires operation at 140°C with o-dichlorobenzene as the solvent.
The flow rate is 0.75 ml/min.
An Infrared detector with a wavelength of 3.4 pm is used.