نتایج جستجو برای: reverse phase chromatography
تعداد نتایج: 789091 فیلتر نتایج به سال:
Diosmin and hesperidin are natural flavonoid glycosides found in various plant materials, mainly in citrus fruits in different concentrations. Diosmin for pharmaceutical use is obtained mainly semi-synthetically from hesperidin. Hesperidin often accompanies diosmin as a natural impurity in different pharmaceutical formulations; therefore, a simple, fast and precise method for the simultaneous a...
A new assay for cyclic nucleotide phosphodiesterase has been developed by using reverse-phase column chromatography for the separation of product and substrate of the enzymatic reaction. The polar 5'-nucleotides are not retarded by the column, while the more lipophilic cyclic nucleotides bind to the column. Properties such as pH and ionic strength of the incubation mixture or the elution buffer...
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