| 质量标准： |
项目Item 分析纯
（AR）
含量(C6H14O6)Assay,% ≥ 98.0
灼烧残渣(以硫酸盐计)Ignition residue,% ≤ 0.1
氯化物(Cl)Chloride,% ≤ 0.003
硫酸盐(SO4)Sulfate,% ≤ 0.003
重金属(以Pb计)Heavy metals,% ≤ 0.001
还原糖Reducing sugar,% ≤ 0.4
干燥失重Loss on drying,% ≤ 0.8
铁(Fe), % ≤ 0.0005
镍(Ni),% ≤ 0.0002
砷(As),% ≤ 0.00013
品级Grade 超纯级
(Ultra pure)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥99.5% (HPLC)
比旋光度Specific rotation [a]20/D −1.5±0.3°, c = 10% in H2O
甜度sweetness 0.6 × sucrose
不溶物insoluble matter, passes filter test
灼烧残渣Residue on ignition ≤0.1% (as SO4)
干燥损失loss on drying ≤0.5% , 20 °C (HV)
pH 5.0-7.0 (25 °C, 1 M in H2O)
水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless
氯chloride (Cl-): ≤50 ppm
硫酸根sulfate (SO42-): ≤50 ppm
Al: ≤5 ppm
As: ≤0.1 ppm
Ba: ≤5 ppm
Bi: ≤5 ppm
Ca: ≤10 ppm
Cd: ≤5 ppm
Co: ≤5 ppm
Cr: ≤5 ppm
Cu: ≤5 ppm
Fe: ≤5 ppm
K: ≤50 ppm
Li: ≤5ppm
Mg: ≤5 ppm
Mn: ≤5 ppm
Mo: ≤5 ppm
Na: ≤50 ppm
Ni: ≤5 ppm
Pb: ≤5 ppm
Sr: ≤5 ppm
Zn: ≤5 ppm
λ 1 M in H2O
UV absorption
λ: 260 nm A: ≤0.04
λ: 280 nm A: ≤0.045
品级Grade 分子生物学级
(grade for molecular biology )
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥98.0% (GC)
熔点Melting point 98-100 °C
DNase, RNase, and protease, none detected
品级Grade 细胞培养级
(cell culture tested)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥98.0% (GC)
熔点Melting point 98-100 °C
细胞培养试验Cell culture test PASS
品级Grade 植物细胞培养级
(plant cell culture tested)
外观Appearance 白色粉末
红外光谱鉴别Infrared spectrometry Conforms
纯度Purity ≥98.0% (GC)
熔点Melting point 98-100 °C
植物细胞培养试验Plant Cell Culture Test Pass
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