Basic Info
  • Grade: LC-MS

    Factory Location: Tianjin,China

    Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Middle East,Africa

  • Sample Provided: yes

    Payment Terms: T/T

    Test Items

    Units

    Specifications

    Assay CH3OH(GC)

    %

    ≥99.99

    Density(20℃)

    g/mL

    0.791~0.793

    Solubility with H2O

     

    Pass test

    Residue on evaporation

    %

    ≤0.0001

    Water

    %

    ≤0.01

    Acidity(as H+)

    mmol/g

    ≤0.0002

    Alkalinity(as OH-)

    mmol/g

    ≤0.0001

    Absorbance at 205 nm

    Abs.Units

    ≤1.0

    Absorbance at 210 nm

    Abs.Units

    ≤0.45

    Absorbance at 220 nm

    Abs.Units

    ≤0.20

    Absorbance at 230 nm

    Abs.Units

    ≤0.10

    Absorbance at 260 nm

    Abs.Units

    ≤0.01

    254nm Gradient Elution Test

    mAU

    ≤2

    235nm Gradient Elution Test

    mAU

    ≤2

    Fluorescence impurity at 254 nm

    ppb

    ≤1.0

    Fluorescence impurity at 365 nm

    ppb

    ≤0.5

    LC-MS(ESI+) as reserpine

    ppb

    ≤50

    LC-MS(ESI-) as 4-nitrophrnol

    ppb

    ≤50

    (K、Ag、Ba、Cd、Co、Cr、Cu、Mn、Ni、Pb、Sn)

    ppb

    ≤5

    Al、Ca、Mg、Fe

    ppb

    ≤10

    Na

    ppb

    ≤100

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    Concord Technology (Tianjin) Co,.Ltd
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