The standard "GB/T 14552-2003 Gas chromatography, CG for the determination of organophosphorus pesticides in water and soil" specifies the method for the determination of organophosphorus pesticide residues in surface water, groundwater and soil. The standard includes organic solvent extraction, liquid-liquid distribution, purification treatment and gas phase chromatograph analysis of the sample. Retention time of Chromatogram is qualitative by Nitrogen Phosphorus Detector (NPD) or Flame photometric detector, FPD (FPD), and quantified by external standard method to ensure accurate detection of organophosphorus pesticide residue levels.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | Z16 | ICS | 13.060.01 |
| Release Date | 2003-11-10 00:00:00 | Implementation Date | 2004-04-01 00:00:00 |