外观 Appearance 白色粉末,微吸湿 White powder, slightly hygroscopic 符合 Conferms 鉴别 Identification 符合 Conferms 符合 Conferms 比旋度 Specific rotation +24° to +28.5° +26.74° 含氮量 Nitrogen content 5.7% to 6.0% 5.73% 重金属 Heavy metals ≤0.002% <0.002% 钙含量 Calcium content 8.2% to 8.6% 8.35% 干燥失重 Loss on drying ≤5.0% 2.91% 含量(以干品计) Assay(on dried basis) 98.0%-102.0% 98.65%
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