This document introduces a new ultra-inert GC column that has significantly improved sensitivity and accuracy for trace samples
This document is a set of seminar slides from an Agilent Technologies ISCC 2010 Vendor Seminar. It addresses the challenges and needs of modern laboratories regarding trace sample qualification and instrument stability. The text explains that lower detection limits require improved inertness in injection systems, liners, and columns to reduce noise and peak tailing caused by column activity.
| Column Dimensions (Ultra Inert) | 15 m x 0.25 mm x 0.25 pm |
|---|---|
| Carrier Gas Velocity | 43.8 cm/sec constant flow |
| Oven Temperature Program | 70°C (1min) to 310°C at 20°C/min |
| Inlet Temperature | splitless at 250 °C |
Column activity is the loss of detectable analytes to the GC column through non-ideal chemical reactions and interactions.
Strong probes have active ends available to interact with any active sites on the columns, helping identify column activity.
Ultra Inert columns set a new industry standard because only when a column exhibits both low bleed and low activity are results reliable.