|
Item |
Standard |
Result |
|
Appearance |
White to light yellow crystal powder |
conforms |
|
Assay |
≥98.50% |
99.30 |
|
Specific Rotation |
-29.0° -32.8° |
-29.3° |
|
Residue on Ignition |
≤0.50% |
0.35 |
|
Loss on Drying |
≤0.50% |
0.26 |
|
Heavy Metal(Pb) |
≤20ppm |
＜20ppm |
|
Arsenic(As) |
≤2ppm |
＜2ppm |
|
Mercury(Hg) |
≤0.1ppm |
＜0.1ppm |
|
Cadmium(Cd) |
≤2ppm |
＜2ppm |
|
Salmonella |
Negative in 10g |
conforms |
|
PH |
5.0~7.0 |
conforms |