How are heavy metals and pesticide residues tested in this Astragalus root oil?
Every batch is tested for heavy metals and pesticide residues by ICP-MS and GC-MS against ChP 2020 limits.
Test Limits (ChP 2020 / GB 2763-based)
| Parameter | Limit | Method |
|---|---|---|
| Lead (Pb) | ≤5 mg/kg | ICP-MS, ChP 2302 |
| Cadmium (Cd) | ≤0.3 mg/kg | ICP-MS, ChP 2302 |
| Arsenic (As) | ≤2 mg/kg | ICP-MS, ChP 2302 |
| Mercury (Hg) | ≤0.2 mg/kg | ICP-MS, ChP 2302 |
| Copper (Cu) | ≤20 mg/kg | ICP-MS, ChP 2302 |
| BHC (total) | ≤0.2 mg/kg | GC-MS, ChP 2203 |
| DDT (total) | ≤0.2 mg/kg | GC-MS, ChP 2203 |
| Pentachloronitrobenzene | ≤0.1 mg/kg | GC-MS, ChP 2203 |
- Typical measured values are far below the limits; Dao-di GAP bases also undergo soil and irrigation water screening
- Additional EU 396/2005 or FDA-market pesticide panels can be run on request (GLP lab, third-party report)
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This article was published on 2026-09-07, and last updated on 2026-09-07. The article will be continuously updated.
