نتایج جستجو برای: methanesulfonic acid
تعداد نتایج: 747453 فیلتر نتایج به سال:
The tryptophan content of Clostridium perfringens epsilon toxin was investigated. When the tryptophan content was determined by amino acid analysis after the hydrolysis of epsilon prototoxin with methanesulfonic acid containing 3-(2-aminoethyl)indole and by the spectrophotometric method with N-bromosuccinimide, the number of tryptophan residues was calculated at 1/mol of the protein. Cleavage o...
An ice core extracted from Holtedahlfonna ice cap, western Spitsbergen, record spanning the period 1700–2005, was analyzed for major ions. The leading empirical orthogonal function (EOF) component is correlated with an index of summer melt (log([Na]/[Mg]) from 1850 and shows that almost 50% of the variance can be attributed to seasonal melting since the beginning of the industrial revolution. T...
Pretreatment of Switchgrass for Production of Glucose via Sulfonic Acid-Impregnated Activated Carbon
In the present research, activated carbon-supported sulfonic acid catalysts were synthesized and tested as pretreatment agents for conversion of switchgrass into glucose. The by reacting sulfuric acid, methanesulfonic p-toluenesulfonic with carbon. characterization suggested an increase in surface acidities, while area pore volumes decreased because sulfonation. Batch experiments performed 125 ...
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