Kezdőlap »Aminosavak» Glutaminsav aminosav por (L-glutaminc acid)
Certificate of Analysis
Product Name: L-Glutamic acid
Item |
Standard |
Result |
Characteristics |
A white crystalline or crystammine powder acid taste and slightly agreeable. |
Conform |
Specific rotation [a]D20° |
+30.5 °~ +32.5° |
+32.1° |
Identification |
|
IR |
Chloride (Cl) |
0.02% max |
0.017% |
Ammonium (NH4) |
0.02% max |
0.010% |
Sulfate (SO4) |
0.02% max |
0.013% |
Iron (Fe) |
10ppm max |
6ppm |
Heavy metals (Pb) |
10ppm max |
5ppm |
Cadmium |
1ppm max |
Conform |
Mercury |
0.1ppm max |
Conform |
Arsenic (AS2O3) |
1ppm max |
0.5ppm |
Other amino acids |
Conform to starndard. |
Conform |
Loss on drying |
0.5% max |
0.08% |
Residue on ignition(sulfated) |
0.10% max |
0.05% |
Assay: |
98.5% to 100.5% |
98.20% |
PH |
3.0 to3.5 |
3.2 |
Shelf Life: Two years when stored properly.