产品编号：8001GG4000
产品名称：4L梯度级甲醇
产品指标：
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检测项目 Test Items |
指标要求Specification |
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含量Assay CH3OH (by GC) , ω / % |
99.90 min |
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密度Density (20℃) , ρ / (g/mL) |
0.791~0.793 |
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与水混合试验Solubility in H2O |
合格Pass test |
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蒸发残渣Residue on evaporation , ω / % |
0.0002 max |
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水分Water H2O (by K-F) , ω / % |
0.05 max |
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酸度Titrable Acid(H+) , b / (mmol/g) |
0.0003 max |
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碱度Titrable base(OH-) , b / (mmol/g) |
0.00008 max |
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吸光度 (1cm石英吸收 池水作对照) UV Absorbance (1cm cell vs. water) |
at 205 nm |
1.00 max |
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at 210 nm |
0.60 max |
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at 220 nm |
0.30 max |
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at 230 nm |
0.15 max |
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at 240 nm |
0.05 max |
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at 254 nm |
0.01 max |
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at 260 nm |
0.01 max |
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梯度洗脱试验：254nm所有峰的吸光度 / (mAU) Gradient Elution Test at 254nm |
5 max |
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