|
Items
|
EP5.0 |
NF24 |
|
Characters |
White crystalline power
odorless |
White crystalline power
odorless |
|
Identifying |
Positive |
positive |
|
Appearance of solution |
Solution colorless and clear |
Solution colorless and clear |
|
PH value |
5.0-8.0 |
Without regulation |
|
Specific optical rotation |
+1600 to +1640 |
+1600 to +1640 |
|
Reducing sugars (%) Max |
0.2 |
1% |
|
Light-absorbing
Impurities max (%) |
0.1 (230-350nm)
0.05 (350-750nm) |
Without regulation |
|
Relative substance (%) |
a)α-Cd
+ γ-Cd
0.25 max
b)Total other CD 0.5 max |
Without regulation |
|
Residual solvents (PPM) |
a)Trichloroethylene:10 max
b)Toluene: 10 max |
a)Trichloroethylene:80 max
b) Toluene: 890max |
|
Heavy metals (PPM) |
10 max |
5 max |
|
Loss on drying (%) |
At 120C for 2 hrs¨ 16 max |
14 max |
|
Residue on ignition
(or sulfated ash) (%) |
0.1 max |
0.1 max |
|
Assay (on dry basis) (%) |
98-101.0 |
98.0-102.0 |
|
Total bacteria count (CFU/g) |
Without regulation |
1000 max |
|
Colon coli (CFU/g) |
Without regulation |
Negative |
|
Salmonella (CFU/g) |
Without regulation |
Negative |
