项目 分析纯
(AR)
pH(1:2,25℃) 4.0~8.0
沸点boiling point/℃ 81.0~82.0
含量Assay ≥99.0%
还原高锰酸钾物质 合格
permanganate-reducing substances
氰化氢hydrocyanic acid(3) 合格
水溶解试验solubility in water 合格
蒸发残渣evaporation residue ≤0.01%
项目Item 优级纯
(GR)
含量Assay ≥99.5%
碱度alkalinity(以OH-计)/(mmol/100g)≤0.058
水分Water ≤0.3%
酸度Acidity(以H+计)/(mmol/100g) ≤0.083
蒸发残渣evaporation residue ≤0.001%
项目 色谱纯
(for HPLC, ≥99.9%)
纯度Purity ≥99.9%
λ H2O reference
紫外吸收UV absorption
λ: 195 nm ≤0.100
λ: 200 nm ≤0.020
λ: 228 nm ≤0.005
透光度transmittance
195 nm, ≥80%
200 nm, ≥95%
228 nm, ≥99%
游离碱free alkali (as NH3) ≤0.0001%
非挥发性物质non-volatile matter ≤0.0002%
游离酸free acid (as CH3COOH) ≤0.001%
水water (Karl Fischer) ≤0.01%
基线漂移baseline drift, (210 nm) ≤12 mAU
荧光奎宁fluorescence (quinine) at 254 nm ≤0.5 ppb
荧光奎宁fluorescence (quinine) at 365 nm ≤0.5 ppb
卤化残留halogenated residue 10 ng/L (as heptachlor epoxide)
UV absorption
HPLC-gradient/210 nm ≤1 mAU
HPLC-gradient/254 nm ≤0.2 mAU
项目 农残级
(for residue analysis)
外观Appearance 无色液体
纯度Purity >99.9% (GC)
色度Color scale
<10 APHA >水分Water
<0.1 % (Coulometric) >酸度Acidity (CH3COOH)
<0.002 % >蒸发残渣Residue after evaporation
<0.0005 % >GC/ECD (as lindane): ≤5 ng/L (以杀虫剂林丹计)
品级Grade 光谱纯
(for spectroscopy)
含量assay ≥99.8%
水分water
<0.03% >蒸发残渣evaporation residue ≤ 0.0005 %
λ H2O reference
UV absorption
λ: 193 nm A: ≤1.0
λ: 210 nm A: ≤0.30
λ: 220 nm A: ≤0.10
λ: 235 nm A: ≤0.02
λ: 250 nm A: ≤0.01
λ: 400 nm A: ≤0.01
水分Water ≤ 0.01 %
色度Colour ≤ 10 Hazen
酸度Acidity ≤ 0.0005 meq/g
碱度Alkalinity ≤ 0.0002 meq/g
Fluorescence
- as quinine at 254 nm ≤ 1.0 ppb
- as quinine at 365 nm ≤ 1.0 ppb
品级Grade DNA合成级
(for DNA synthesis, ≥99.9% (GC))
纯度Purity (GC) ≥ 99.9 %
红外光谱鉴别Infrared spectrometry Conforms to Structure
酸度Acidity ≤ 0.001 meq/g
碱度Alkalinity ≤ 0.0002 meq/g
蒸发残渣residue on evaporation ≤ 1 mg/l
水分water ≤0.001% (Karl Fischer)
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