The macroporous resins NKA-11 was used for chromatography of the crude extract L The macroporous resin NKA-11 is a kind of cross-linked polystyrene with polarity.
In this study, precipitation, macroporous resin and HPLC were used to separate and purify the active compounds from the fruit body of C.
This is the first report on the separation of three small-molecular-weight compounds adenosine, 6,7,2',4',5'-pentamethoxyflavone and dimethylguanosine using a fast and simple three-step method, precipitation, macroporous resin and HPLC.
As the lead product, the macroporous resin
QuadraPure TU has been shown to be an extremely efficient scavenger of palladium from both organic and aqueous solutions.
giganteum could significantly prolong the survival time of myocardial hypoxia mice, fractions eluted by 50% EtOH in NKA-9 type macroporous resin could significantly prolong the survival time in myocardial hypoxia mice, but also to improve the biochemical indicators of myocardial ischemia mice, so extraction process using 60% EtOH should be a more reasonable extraction method, the eluted material with 50% EtOH in macroporous resin should be the active friction.
Two hundred grams of 60% EtOH extract was fractionated with NKA-9 macroporous resins columns (eluted consecutively with 3000ml water, 2000ml 50% EtOH and 2000ml 95% EtOH) to get water fraction, 50% EtOH fraction and 95% EtOH fraction.
The extract was concentrated under reduced pressure, and then dissolved in 30% ethanol to give 1 g/ml (crude medicine/volume) sample liquor, and then this liquor was passed through AB-8 macroporous resin
column with 1 time the volume which was comparable to the weight of macroporous resin
According to Bourelle, macroporous resins are noted for their durable polymer structure which provides both osmotic strength and long-term chemical and thermal stability.
For more information on the new line of DOWEX MARATHON UPS macroporous resins for industrial water demineralization, contact The Dow Chemical Co.