EINECS 编号 232-674-9
MDL number MFCD00081512
用于分配色谱法的高纯度纤维素粉。
Cellulose was used to measure the cyrstallinity index using X-ray diffraction (XRD) patterns and solid-state 13C nuclear magnetic resonance spectra.
Same product — same quality — now Sigma-Aldrich brand
Cellulose, a homopolymer consisting of glucose units joined by beta-1,4 bonds. These are strongly attached through inter and intramolecular hydrogen bonds and van der Waals forces resulting in microfibrils which together form fibers. They are arranged in parallel reducing ends of adjacent glucan chains. Cellulose is widely used as sorbent in TLC.
biological source | from spruce |
grade | for column chromatography |
form | powder |
quality | acid washed |
fiber L | 0.02-0.15 mm |
impurities | ≤0.05% ether extract |
ign. residue | ~0.01% |
cation traces | Cu: ≤5 mg/kg |
Fe: ≤10 mg/kg |
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