This document describes a method for pesticide analysis in the competitive contract laboratory marketplace using 0.32 mm ID capillary columns. It demonstrates the use of Agilent J&W DB-17ms and DB-XLB GC columns with hydrogen carrier and dual electron capture detection for trace level CLP pesticides analysis. The method is useful for laboratories that prefer the higher sample loading capacity of the 0.32 mm ID columns. Agilent's Capillary Flow Technology (CFT) 2-way splitter is used to transfer the sample onto the dual columns, simplifying maintenance and reducing instrument downtime.
This document presents a gas chromatographic method for trace level organochlorine pesticide testing using 0.32 mm ID Agilent J&W DB-17ms and DB-XLB columns coupled with dual electron capture detection. The method utilizes an Agilent Capillary Flow Technology (CFT) 2-way splitter to facilitate simultaneous primary and confirmation analysis.
| Column 1 Dimensions | 30 m x 0.32 mm x 0.25 µm |
|---|---|
| Column 2 Dimensions | 30m x 0.32 mm x 0.5 µm |
| Carrier Gas | Hydrogen |
| Inlet Temperature | 250 °C |
| Detector Temperature | 325 °C |
| Analysis Time | Less than 8 minutes |
The analysis uses Agilent J&W DB-17ms for primary analysis and DB-XLB for confirmatory analysis.
The calibration curve set was evaluated over the concentration range of 3.2-80 ng/mL.
An Agilent Capillary Flow Technology (CFT) 2-way splitter without makeup gas is used.