Item No.: 8001LM1000
Product Name: 1L LC-MS Methanol
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Test Items
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Units
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Specifications
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Assay CH3OH(GC)
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%
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≥99.99
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Density(20℃)
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g/mL
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0.791～0.793
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Solubility with H2O
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Pass test
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Residue on evaporation
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%
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≤0.0001
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Water
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%
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≤0.01
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Acidity(as H+)
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mmol/g
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≤0.0002
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Alkalinity(as OH-)
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mmol/g
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≤0.0001
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Absorbance at 205 nm
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Abs.Units
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≤1.0
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Absorbance at 210 nm
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Abs.Units
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≤0.45
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Absorbance at 220 nm
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Abs.Units
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≤0.20
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Absorbance at 230 nm
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Abs.Units
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≤0.10
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Absorbance at 260 nm
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Abs.Units
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≤0.01
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254nm Gradient Elution Test
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mAU
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≤2
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235nm Gradient Elution Test
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mAU
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≤2
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Fluorescence impurityat 254 nm
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ppb
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≤1.0
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Fluorescence impurity at 365 nm
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ppb
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≤0.5
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LC-MS(ESI+)as reserpine
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ppb
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≤50
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LC-MS(ESI-) as 4-nitrophenol
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ppb
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≤50
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K、Ag、Ba、Cd、Co、Cr、Cu、Mn、Ni、Pb、Sn
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ppb
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≤5
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Al、Ca、Mg、Fe
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ppb
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≤10
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Na
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ppb
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≤100
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