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QB/T 658-88
項目Item 優(yōu)級純 分析純 化學純
(GR) (AR) (CP)
含量(NH4Cl)Assay,% ≥99.8 99.5 98.5
pH(50g/L溶液，25℃) 4.5-5.5 4.5-5.5 4.5-5.5
澄清度試驗Clarity 合格 合格 合格
水不溶物Insoluble matter in water,% ≤0.002 0.005 0.01
灼燒殘渣（以硫酸鹽計）Ignition residue,% ≤0.005 0.02 0.05
硫酸鹽(SO4)Sulfate,% ≤0.002 0.005 0.005
磷酸鹽(PO4)Phosphate,% ≤0.0002 0.0005 0.001
鈉(Na)Sodium,% ≤0.005 0.005 --
鎂(Mg)Magnesium,% ≤0.0005 0.001 0.002
鉀(K)Potassium,% ≤0.005 0.005 --
鈣(Ca)Calcium,% ≤0.0005 0.001 0.002
鐵(Fe)Iron,% ≤0.0002 0.0005 0.001
鎳(Ni)Nickel,% ≤0.0001 -- --
銅(Cu)Copper,% ≤0.0002 -- --
鋅(Zn)Zinc,% ≤0.0002 -- --
鉛(Pb)Lead,% ≤0.0001 -- --
項目名稱Item ACS Grade
含量Assay ≥99.5%
pH(5%溶液，25℃)pH 4.5-5.5
不溶物Insoluble matter ≤0.005%
灼燒殘渣Residue after ignition ≤0.01%
鈣(Ca)Calcium(Ca) ≤0.001%
鎂(Mg)Magnesium(Mg) ≤5ppm
重金屬(以Pb計)Heavy metals(as Pb) ≤5ppm
鐵(Fe)Iron(Fe) ≤0.0002%
磷酸鹽(PO4)Phosphate ≤0.0002%
硫酸鹽(SO4)Sulfate ≤0.002%
品級Grade 分子生物學級
(for molecular biology, ≥99.5%)
外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥99.5%
重金屬(以Pb計)Heavy metals(as Pb) ≤0.0005%
鐵(Fe)Iron(Fe) ≤0.0002%
磷酸鹽Phosphate ≤0.0002%
硫酸鹽Sulfate ≤0.002%
水溶解試驗solubility in water 合格
DNase, RNase, protease, none detected
品級Grade 細胞培養(yǎng)專用
(cell culture tested, ≥99.5%)
外觀Appearance 白色粉末
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity ≥99.5%
重金屬(以Pb計)Heavy metals(as Pb) ≤0.0005%
鐵(Fe)Iron(Fe) ≤0.0002%
磷酸鹽Phosphate ≤0.0002%
硫酸鹽Sulfate ≤0.002%
水溶解試驗solubility in water 合格
細胞培養(yǎng)測試cell culture test Pass
品級Grade 藥典注射級
(Ph. Eur., BP, USP, FCC )
含量assay 99.5-100.5% (以干基計)
酸度和堿度acidity or alkalinity, complies
殘留溶劑residual solvents, complies
硫氰酸t(yī)hiocyanate (SCN), complies
灼燒殘渣ign. residue ≤0.1% (as SO4)
干燥損失loss on drying ≤0.5% loss on drying, 105 °C
pH 4.6-6.0 (20 °C, 5%)
痕量陰離子anion traces by ICP Atomic emission AND AAS
溴bromide (Br-): in accordance
碘iodide (I-): in accordance
硫酸根sulfate (SO42-): ≤100 ppm
痕量陽離子cation traces by ICP Atomic emission
As: ≤3 ppm
Ca: ≤100 ppm
Cu: ≤20 ppm
Fe: ≤20 ppm
Mg: ≤10 ppm
Pb: ≤4 ppm
Zn: ≤20 mg/kg
溶解性suitability complies for appearance of solution
99.999%:
外觀Appearance 白色結晶粉末
紅外光譜鑒別Infrared spectrometry Conforms
X-射線衍射分析X-Ray Diffraction Conforms to standard
純度Purity ≥99.999% Based On Trace Metals Analysis
痕量金屬雜質Trace Metal Analysis 20ppm by ICP Atomic emission
(Li、Na、K、Ni、Cs、Mg、Ca、Ba、Zn、Al、Cr、Mn、As、Fe)
99.99%:
外觀Appearance 白色結晶粉末
X-射線衍射分析X-Ray Diffraction Conforms to standard
純度Purity ≥99.99% Based On Trace Metals Analysis
痕量金屬雜質Trace Metal Analysis 200ppm by ICP Atomic emission
(Ba、Ca、Mg、Na)
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