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| 供貨周期 | 現(xiàn)貨 | 規(guī)格 | HPLC 4L ≥99.9% |
|---|---|---|---|
| 貨號 | 1.000988 | 應(yīng)用領(lǐng)域 | 環(huán)保,食品,化工,生物產(chǎn)業(yè) |
產(chǎn)品簡介
詳細介紹
Ultraviolet Absorbance (1.00-cm cell vs. water) -400-254 nm<= 0.005 0.004
Ultraviolet Absorbance (1.00-cm cell vs. water) - 220nm<= 0.01 0.01
Ultraviolet Absorbance (1.00-cm cell vs. water) - 200nm<= 0.05 0.02
Ultraviolet Absorbance (1.00-cm cell vs. water) - UVCut-off, nm<= 190 188
Gradient Elution Test (a.u.) - 254 nm <= 0.0005 0.0004
Gradient Elution Test (a.u.) - 210 nm <= 0.002 0.001
Density (g/mL) at 25°C 0.775 - 0.780 0.777
Fluorescence Trace Impurities, measured as QuinineBase - at 450 nm Emission<= 0.3 ppb 0.3
Fluorescence Trace Impurities, measured as QuinineBase - at Emission Maximum for Impurities<= 1.0 ppb 0.5Assay (CH?CN) (by GC) >= 99.9 % 100.0
Appearance Passes Test PTColor (APHA) <= 10 5
Fluorescence Trace Impurities, measured as QuinineBase - Fluorescence detection (PAH)<= 0.5 ppb 0.5Residue after Evaporation <= 1.0 ppm < 0.1
Titrable Acid (µeq/g) <= 0.8 0.3
Titrable Base (µeq/g) <= 0.6 < 0.1
Water (by KF, coulometric) <= 100 ppm 49
Carbonyl Compounds (as Acetone) <= 25 ppb 25