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Methanol for LC-MS

701091

itwreagents

Minimum assay (G.C.): 99.9%
Identity: IR passes test
Density 20/4: 0.791-0.792
Suitability: for LC-MS: passes test
Maximum limit of impurities
APHA colour: 10
Acidity: 0.0002 meq/g
Alkalinity: 0.0002 meq/g
Non-volatile matter: 0.0002 %
Base line drift (235 nm): 15 mUA
Water (H2O): 0.02 %
Gradient at 235 nm: 2 mUA
Gradient at 254 nm: 1 mUA
Fluorescence at 254 nm (as quinine): 1 ppb
Fluorescence at 365 nm (as quinine): 0.5 ppb
UV Spectrum (1cm cell; Ref.: water):
Transmittance at 205 (Cut off) nm: ≥10%
Transmittance at 210 nm: ≥30%
Transmittance at 220 nm: ≥60%
Transmittance at 230 nm: ≥80%
Transmittance at 240 nm: ≥90%
Transmittance at 260-400 nm: ≥98%

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