產(chǎn)品詳情
|
Item |
Standard |
Analysis data |
|
Appearance |
White crystals or crystalline powder |
conbs |
|
Specific rotation[α]20/D (C=2,H2O) |
+14.0°to+17.0° |
+15.60° |
|
Transmittance |
Not less than 95.0% |
98.1% |
|
Heavy bl(Pb) |
Not more than 20ppm |
<10ppm |
|
Iron (Fe) |
Not more than 10ppm |
9ppm |
|
Arsenic(As2O3) |
Not more than 2ppm |
<2ppm |
|
Chloride (Cl) |
Not more than 0.020% |
0.008% |
|
Sulfate (SO4) |
Not more than 0.10% |
0.005% |
|
Other amino acids |
Chromatographically not detectable |
conbs |
|
Loss on drying |
Not more than 0.50% |
0.20% |
|
Residue on ignition |
Not more than 0.30% |
0.1% |
|
Assay |
98.0to102.0% |
98.7% |
|
pH |
1.7to2.8 |
2.3 |
|
Conclusion |
The product is according with standard. |
|
