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L-谷氨酰胺
检验项目Test Item |
标准规定Specification |
结果TestResult |
Appearance |
White crystalline powder |
conforms |
Specific rotation [α]20/D |
+6.3°~+7.3° |
+6.7° |
Loss on drying |
≤0.3% |
0.10% |
Residue on ignition |
≤0.3% |
0.08% |
Heavy metals (Pb) |
≤15ppm |
<15ppm |
Fe |
≤30ppm |
<30ppm |
Sulfate (SO4) |
≤0.03% |
<0.02% |
Chloride (Cl) |
≤0.05% |
<0.02% |
Assay |
98.5~101.5% |
99.0% |
结论Conclusion |
本品符合 标准。The results conform with USP26 standard. |
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