|
Item |
Standard |
Analysis data |
|
Appearance |
Off-White crystals or crystalline powder |
Conforms |
|
Specific rotation(a)D20 |
-74.0º to –77.0º |
-74.19 |
|
Transmittance |
Not less than 95.0% |
96.4% |
|
Chloride(C1) |
Not more than 0.02% |
<0.02% |
|
Ammonium(NH4) |
Not more than 0.02% |
<0.02% |
|
Sulfate (SO4) |
Not more than 0.02% |
<0.02% |
|
Heavy metals(Pb) |
Not more than 10ppm |
<10ppm |
|
Iron(Fe) |
Not more than 10ppm |
<10ppm |
|
Arsenic(As2O3) |
Not more than 1 PPM |
<1ppm |
|
Other Amino Acids |
Conforms |
Conforms |
|
Loss on drying |
Not more than 0.20% |
0.15% |
|
Residue on ignition |
Not more than 0.1% |
0.09% |
|
Assay |
98.5-101.0% |
99.1% |
|
PH |
5.0～6.5 |
5.4 |
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