This application note describes an analytical method for the determination of herbicides in drinking water using the Agilent 1120 Compact LC. The method is characterized by high retention time and peak area precision and low detection limits.
This document presents an application note detailing the analysis of herbicides in drinking water using the Agilent 1120 Compact LC. The study focuses on the system's capability to achieve high precision in retention times and peak areas, as well as low detection limits for the analyzed compounds.
Nine specific herbicides were analyzed using high performance liquid chromatography (HPLC). The results demonstrate excellent retention time precision of less than 0.1% RSD and peak area precision of less than 0.5% RSD. The limit of detection (LOD) was determined to be less than 150 pg for all herbicides analyzed under the specified chromatographic conditions.
| Retention time precision | less than 0.1% RSD |
|---|---|
| Peak area precision | less than 0.5% RSD |
| Limit of detection (LOD) | less than 150 pg |
| Column dimensions | 150 x 4.6 mm |
| Column particle size | 5 pm |
| Flow rate | 1.5 mL/min |
| Column temperature | 40 °C |
| Detection wavelength | 225 nm |
The system achieves excellent retention time precision of less than 0.1% RSD.
The limit of detection is less than 150 pg for all herbicides analyzed.
The study analyzed Metamitron, Chloridazone, Simazine, Cyanazine, Prometryn, Chlortoluron, Diuron, Propazine, and Terbuthylazine.