乙腈

◆ 超纯色谱乙腈Acetonitrile, Super Pure
产品编号：255490 CAS：75-05-8


Specifications

Water by Karl Fischer titration Less than 0.01%
UV cutoff 190nm
Refractive index (20°C) 1.3440 ±0.0006
Residue Less than one mg/L
Purity by GC analysis Greater than 99.9%
Electron capture GC as heptachlor No residue peaks greater than 10 ng/L based on a 1:1petroleum ether extract
HPLC gradient elution No UV absorbing peak greater than 0.005absorbanceunit (1 cmpathlength) at 215 nm, or 0.001 absorbance unit at 254 nm in a gradient from70%water to 100% acetonitrile on a 15 cm x 4.6 mm columnwith 5 μmHLD C8 packing
Fluorescence No impurity greater than 0.3 ppb as quinine base at emission of 450 nm after excitation at 350 nm


Suggested Applications
For HPLC, gas chromatography, pesticide residue analysis and spectrophotometry