項目Item 分析純 化學(xué)純 優(yōu)級純
(AR) (CP) (GR)
含量(CH3OH)Assay,% ≥99.5 99.5 99.5
密度(20℃)Density,g/ml 0.791-0.793 0.791-0.795 0.791-0.793g
水溶性試驗Solubility in water 合格 合格 合格
蒸發(fā)殘渣Evaporation residue,% ≤0.001 0.001
水分(H2O)Water,% ≤0.1 0.3 0.05
酸度(以H+計)Acidity,mmol/100g ≤0.04 0.08 0.002
堿度(以O(shè)H-計)Alkalinity,mmol/100g ≤0.08 0.016 0.0001
易碳化物質(zhì)Readily carbonizable
substance 合格 合格 合格
羰基化合物(以CO計)Carbonly compounds,% ≤0.005 0.01 0.005
還原高錳酸鉀物質(zhì)Potassium 合格 合格 合格
perman-ganate reducing s-
ubstances
無水甲醇：
品級Grade 分析純，無水級
(AR，anhydrous)
含量(CH3OH)Assay,% ≥ 99.5
沸點(diǎn)Boiling point,℃ 64-65
與水混合試驗Miscibility with water 合格
蒸發(fā)殘渣Evaporation residue,% ≤ 0.05
水份(H2O)Water,% ≤ 0.04
酸度(以H+計)Acidity,m mol/100g ≤ 0.04
堿度(以O(shè)H-計)Alkalinity,m mol/100g ≤ 0.01
醛與酮(以CH3COCH3計)Aldehdes and kelones,% ≤ 0.003
還原高錳酸鉀物質(zhì)Potassium permanganate
reducing substances 合格
易炭化物質(zhì)Readily carbonizable substances 合格
（用于滴定）
項目 色譜純
( for HPLC, ≥99.9%)
外觀Appearance Colorless Liquid
紅外光譜鑒別Infrared spectrometry Conforms
純度Purity (GC) ≥99.90 %
水分Water ≤0.05 % (by Karl Fischer)
蒸發(fā)殘渣Residue on Evaporation ≤0.0001 %
色度Color Test ≤10 APHA
碳化合物Carbonyl Compounds ≤0.001% （each of Acetone, Formaldehyde, and Acetaldehyde）
可滴定酸Titratable acid ≤0.0003 meq
可滴定堿Titratable base ≤0.0002 meq
λ H2O reference
UV absorption
λ: 205 nm A: ≤1.0
λ: 210 nm A: ≤0.80
λ: 220 nm A: ≤0.20
λ: 230 nm A: ≤0.10
λ: 250 nm A: ≤0.02
λ: 400 nm A: ≤0.005
項目 農(nóng)殘級
(for residue analysis, ≥99.9%)
外觀Appearance 無色液體
純度Purity ≥99.9% (GC)
色度Color scale <10 APHA
水分Water <0.05% (K.F)
酸度Acidity (CH3COOH) <0.003 %
蒸發(fā)殘渣Residue after evaporation <0.0001 %
halogenated residue (GC/ECD) <10 ng/L (as heptachlor epoxide)
Grade ACS級光譜級
(ACS spectrophotometric grade)
含量assay ≥99.9%
還原高錳酸鹽物質(zhì)MnO4- reducers, passes test
可滴定酸Titrable acid ≤0.0002 meq/g
可滴定堿Titrable base ≤0.0003 meq/g
乙醛acetaldehyde ≤0.001%
丙酮acetone ≤0.001%
甲醛formaldehyde ≤0.001%
水分water ≤0.1%
蒸發(fā)殘渣Residue after evaporation ≤0.001%
色度color ≤10(APHA)
λ H2O reference
紫外吸收UV absorption
λ: 205 nm A: ≤1.00
λ: 210 nm A: ≤0.80
λ: 220 nm A: ≤0.40
λ: 230 nm A: ≤0.20
λ: 240 nm A: ≤0.10
λ: 260 nm A: ≤0.04
λ: 280 nm A: ≤0.01
λ: 400 nm A: ≤0.01
品級Grade LC-MS級
(for LC-MS,≥99.9%)
外觀Appearance Clear Colorless Liquid
熒光Fluorescence 254nm（as Quinine） ≤1 ppb
熒光Fluorescence 365nm（as Quinine） ≤1 ppb
Test for suitability for LC-MS Passes
HPLC Absorbance 254 nm ≤0.005 Abs UN
純度Purity (GC) ≥99.90 %
水分Water ≤0.02 % (by Karl Fischer)
蒸發(fā)殘渣Residue on Evaporation ≤0.0005 %
堿度Alkalinity (as NH3) ≤0.0005 %
游離酸Free Acid （as Formic Acid） ≤0.001 %
Aluminum (Al) ≤0.5 ppm
Barium (Ba) ≤0.1 ppm
Cadmium (Cd) ≤0.50 ppm
Calcium (Ca) ≤0.1 ppm
Chromium (Cr) ≤0.02 ppm
Cobalt (Co) ≤0.02 ppm
Copper (Cu) ≤0.01 ppm
Iron (Fe) ≤0.1 ppm
Lead (Pb) ≤0.02 ppm
Magnesium (Mg) ≤0.1 ppm
Manganese (Mn) ≤0.01 ppm
Nickel (Ni) ≤0.02 ppm
Potassium (K) ≤0.1 ppm
Silver (Ag) ≤0.1 ppm
Sodium (Na) ≤0.1 ppm
Tin (Sn) ≤0.1 ppm
Zinc (Zn) ≤0.1 ppm
品級Grade 用于自動多次展開(AMD)技術(shù)
(grade AMD, ≥99.9%)
含量assay ≥99.9% (GC)
游離堿free alkali (as NH3) ≤0.0005%
非揮發(fā)物non-volatile matter ≤0.0005%
水分water ≤0.02% (Karl Fischer)
熒光fluorescence (quinine) at 254 nm ≤1 ppb
熒光fluorescence (quinine) at 365 nm ≤1 ppb
透光度transmittance
210 nm, ≥30%
220 nm, ≥50%
235 nm, ≥80%
260 nm, ≥98%
abs. HPLC-gradient/230 nm ≤2 mAU
test for AMD technique passes
品級Grade 無丙酮級，用于Romanowsky甲醇染色法
(Acetone free）
外觀Appearance Clear Colorless Liquid
顆粒/沉淀物particles/precipitate free
（備注：適合作為固定劑和制備各種Romanowsky型染色液）
品級Grade 蛋白測序級
(for protein sequencing，≥99.9 % )
外觀Appearance Clear Colorless Liquid
純度Purity ≥99.9 %(GC)
蛋白測序測試Test for protein sequencing passes
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