This note describes the results of using hydrogen carrier gas and increasing the oven ramp rate in the analysis of chlorinated pesticides and herbicides using DB-35ms and DB-XLB columns.
This document presents a complete solution for analyzing chlorinated pesticides (CLP) and phenoxy acid herbicides using Agilent DB-35ms and DB-XLB gas chromatography columns. The primary goal is to achieve high-quality data with total cycle times of less than 15 minutes. The method utilizes inert inlet components and hydrogen carrier gas to optimize selectivity, inertness, and thermal stability.
| Column 1 Film Thickness | 0.25 µm |
|---|---|
| Column 2 Film Thickness | 0.50 µm |
| Column 1 Length | 30 m |
| Column 2 Length | 30 m |
| Upper Temperature Limit | 360 °C |
| Total Analysis Time | Less than 15 minutes |
The total cycle time is less than 15 minutes when using hydrogen carrier gas.
Phenoxy acid herbicides can be analyzed using the same DB-35ms and DB-XLB configuration.
Hydrogen carrier gas is recommended to reduce analysis time to less than 10 minutes.