≥98.0%
andrographolide
appearance |
white powder |
identification |
must positive |
other lactone |
must qualified |
ph(1% solution) |
5-8 |
pb |
≤5ppm |
cd |
≤1ppm |
hg |
≤1ppm |
as |
≤1ppm |
sulphated ash |
≤0.1 % |
loss on drying |
≤1.0 % |
total plate count |
≤1000/g |
yeast & mold |
≤100/g |
e·coli |
negative |
salmonella |
negative |
assay (hplc) |
≥98.0 % |