... b.Full Specification,we can supply all the specifications from 5% -70% by UV,EP,DMAC,HPLC method. 1. Proanthocyanidins ... Size100% through 80 MeshLoss on Drying< 5.0%Heavy Metals< 20ppmArsenic(As)< 2ppmLead(Pb)< 2ppmAssayProanthocyanidins 5%-70% by UV,EP,DMAC,HPLC methodTotal ... market,and we enjoyed a good reputation in Europe.Our heavy metal(As,Pb,Cd,Hg),Microbiology,Pesticide, Benzopyrene, Aflatoxin ...