|
Item |
Standard |
Analysis data |
|
Appearance |
White crystalline powder |
Conforms |
|
Specific rotation[α]20/D (C=8 6N HCl) |
+28.0 to ~30.0Degree |
28.18° |
|
Transmittance |
Not less than 98.0% |
98.1% |
|
Chloride (Cl) |
Not more than 0.020% |
0.018% |
|
Ammonium (NH4) |
Not more than 0.02% |
<0.02% |
|
Sulfate (SO4) |
Not more than 0.030% |
0.008% |
|
Iron (Fe) |
Not more than 10ppm |
<10ppm |
|
Heavy metal(Pb) |
Not more than 10ppm |
<10ppm |
|
Arsenic(As2O3) |
Not more than 1ppm |
<1ppm |
|
Other Amino Acids |
Chromatographically Not detectable |
Conforms |
|
** |
Not more than 5.0% |
2.15% |
|
Residue on ignition(sulfated) |
Not more than 0.20% |
0.10% |
|
Assay |
98.5%~101.0% |
98.88% |
|
PH |
6.0 to 7.5 |
6.8 |
