项目Item
|
指标 Index
|
外观Appearance
|
白色结晶性粉末或颗粒
White crystalline powder
|
含量(以干基计)Assay (on dry basis)
|
≥99.5%
|
干燥失重Loss on drying%
|
≤0.20%
|
炽灼残渣Residue on ignition
|
≤0.1%
|
熔点Melting range
|
118~122℃
|
重金属(以Pb计)Heavy metal(pb)
|
≤1.0 mg/kg
|
砷Arsenic(count as As) mg/
|
≤0.3 mg/kg
|
菌落总数Bacterium total
|
≤300 cfu/g
|
大肠菌群E.Coli,
|
≤30 MPN/100g
|
致病菌Pathogenic bacteria
|
不得检出Negative
|