超纯色谱甲醇

超纯色谱甲醇Methanol, Super Pure
产品编号：125146 CAS：67-56-1


Specifications

Water by Karl Fischer titration Less than 0.05%
UV cutoff 205nm
Refractive index (20°C) 1.3284 ±0.0004
Residue Less than onemg/L
Purity by GC analysis Greater than 99.9%
Electron capture GC as heptachlor No residue peaks greater than 10 ng/L
HPLC gradient elution No UV absorbing peak greater than 0.005absorbanceunit (1 cmpathlength) at 220 nmor 0.001 absorbance unit (1cm path length) at 254 nmin a gradient from 95% water to 100% methanol on a 15 cm x 4.6 mm column with 5 μm HLD C8packing
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.