LC-MS级乙腈

4.000308AcetonitrileUPLC/LC-MS CH3CN M.=41.05CAS No. 75-05-81l ~ 0.781kg 1kg ~ 1.280lMinimum assay (GC, on anhydrous basis) 99.9%Density at 20/4 0.779 ~ 0.783MAXIMUM LIMIT OF IMPURITIESWater (KF) 0.02%Residue after evaporating 0.0001%Colour (APHA)5Acidity (as Acetic acid) 0.0002mmol/gAlkalinity (as Ammonia) 0.0002mmol/gMS-ESI+ (as Reserpine) 50 ppbGrad. elution H.Peak at 210nm 1 mAUGrad. elution H.Peak at 254nm 0.5 mAUFluorescence (as quinine)λ (nm) ppb254 1365 0.5UV Spectrum (1 cm cell; Ref.: water)λ (nm) T (%)190 27193 65195 85200 96215 98230-240 99Metal impurities (ppm)Al 0.1 Na 0.05Fe 0.05K 0.05 Ca 0.05Mg 0.05