- Identity (macroscopy, HPTLC)
- Checks to confirm Angelica archangelica root and flag Angelica sinensis or other Angelica species.
- Volatile oil and furanocoumarins
- Volatile oil content by hydrodistillation and furanocoumarins (such as bergapten and xanthotoxin) by HPLC, which buyers limit for some uses.
- Heavy metals
- Lead, arsenic, cadmium and mercury by ICP-MS, checked against the buyer's limits and any Prop 65 exposure targets.
- Microbiology
- Total plate count, yeast and mold, E. coli or coliforms, and Salmonella.
- Pesticide residues
- Multi-residue pesticide screen, required for organic claims and commonly requested for conventional material.
- Physical tests
- Loss on drying, mesh or particle size, bulk density and, for extracts, the extract ratio, carrier and residual solvent.