质量标准 Specifications
外观/earance
White crystals powder
砷/ Arsenic
≤3ppm
含量/Assay
98.0~102.0 %
硫酸盐Sulfates
≤0.24 %
pH
3.0-5.0
大肠埃希菌/ E.Coli
Negative
比旋度/Specific Rotaion
+70°~+73°
沙门氏菌/ Salmonella
灼烧残渣/ Rsidue on ignition
≤0.1 %
需氧菌总数/ Total aerobic bacteria count
≤1000cfu/g
干燥失重/ Loss on drying
≤1.0 %
酵母、霉菌/ Yeast and mold
≤100cfu/g
铅/ Lead
≤10ppm
目数/Mesh
40/60/80mesh
USP/EP standard
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