Pesticides
Analysis of pesticide residues in soil, water, and food is crucial for maintaining safe levels in the environment. The PDD in the ECD mode is highly selective for monitoring electron capturing compounds such as chlorinated pesticides and other halogens. This chromatogram illustrates the sensitivity of the non-radioactive PDECD for such compounds.
Courtesy of Ohio University's Center for Intelligent Chemical Instrumentation, Glen P. Jackson and Anthony R. J. Andrews, Ph.D.
| Run conditions | |
|---|---|
| Sample | Pesticide calibration mix |
| Sample volume | 1 µl, 10:1 split |
| Injector temp | 275°C |
| Detector mode | Electron capture |
| Discharge gas | Helium @ 30 ml/min |
| Dopant gas | 5% methane in helium @ 2.4 mL/min |
| Detector temp | 330°C |
| Column | HP-5, 25 m x 0.32 mm x 25 µm |
| Column temp | 150°C to 300°C at 10°C/min |
| Attenuation | 1 |
