Describes two test mixtures for Agilent J&W 5% phenyl ultra inert GC columns
This document addresses the need for specific QC test probes to ensure the quality and reproducibility of Agilent J&W 5% phenyl Ultra Inert columns. It details the composition of two distinct test mixtures: one for the DB-5ms Ultra Inert column and a modified version for the HP-5ms Ultra Inert column. The modification was necessary because the original mixture failed to provide baseline resolution for certain analytes on the HP-5ms column.
| Column Type 1 | Agilent J&W DB-5ms Ultra Inert |
|---|---|
| Column Type 2 | Agilent J&W HP-5ms Ultra Inert |
| GC Instrument | Agilent 6890N |
| Sampler | Agilent 7683B |
| Carrier Gas | Hydrogen constant pressure |
| Inlet Temperature | 250 °C |
| Oven Temperature | 65 °C isothermal |
Two mixtures are required because slight differences in selectivity between the DB-5ms and HP-5ms Ultra Inert columns necessitate a component change to ensure rigorous testing.
QC test probes serve a vital function in ensuring the quality and reproducibility of modern GC columns by measuring partition ratio, retention indexes, and probing inertness.