项目
Items |
标准值
Standard |
外观
Appearance |
白色颗粒及粉末
White particles and powder |
L-天门冬氨酸含量/(%)
Assay:L-aspartate |
≥79.0 |
钙(以Ca计)含量/(%)
Assay:Calcium |
12.0-13.8 |
比旋光度αm (20 ℃,D)/[(°)·dm2·kg-1]
Specific rotation |
+19.0~+23.0 |
pH | 6.0-7.5 |
水分/(%)
Loss on drying |
≤6.0 |
铅/(mg/kg)
Lead |
≤2.0 |
总砷/(mg/kg)
Total arsenic |
≤1.0 |
速溶天门冬氨酸钙