نتایج جستجو برای: gel permeation chromatography
تعداد نتایج: 203318 فیلتر نتایج به سال:
چکیده ندارد.
in this research, the characteristics of cmp dioxane lignin (hardwood origin) and soda bagasse lignin (ethanol soluble fraction) and dioxane lignin of bagasse were studied using gel permeation chromatography, gas chromatography-mass spectrometry and 13c nmr spectroscopy and dfrc degradation procedure. the results indicated that the main structural units in lignins are phenyl propane skeletons b...
Phosphonomycin, (-)-cis-l, 2-epoxypropylphosphonic acid, was isolated from fermentation sources as a crystalline calcium salt. Methods for ionexchange adsorption, ion-exchange chromatography using both anionand cation-exchange resins, gel-permeation chromatography, adsorption chromatography and solvent partition were investigated. The overall purification was about 5,000 fold with a yield of 12...
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