The mixture was placed in the separating funnel
, shaken well and was allowed to stand for 10 minutes.
The water was then drained off, and the seeds were transferred to a separating funnel
and kept at 25 C for 24 hours.
Results reflux cooled, after it is inserted into a separating funnel
and add 25 ml of distilled water.
The methyl ester was mixed with an equal volume of distilled water in a separating funnel
. The separating funnel
was gently swirled severally and allowed to stand for some minutes and the water was drained off from the bottom of the funnel by turning on the tap of the separating funnel
The slurry was taken in a separating funnel
and n-hexane (100 mL) was added.
After reaction, sample was put in separating funnel
for 16 hours to separate biodiesel from residual glycerin.
After 60 min, the reaction was complete and the products resulted were left to settle in a separating funnel
. Biodiesel, the upper layer was separated from glycerol and soaps.
Hot distilled water (10% by volume) is sprayed over the ester and stirred gently and allowed to settle in the separating funnel
. The lower layer is discarded and upper layer (purified biodiesel) is separated .
After the reaction, the mixture was allowed to settle for three hours and the methanol--water fraction at the top was removed in a separating funnel
. The acid value of the product separated at the bottom was determined by American Oil Chemists' Society method, 2003.
The extraction method achieves a chemical separation of drug from the release media by use of a separating funnel
. With all these methods, the setup and sampling techniques seem to influence in vitro release.
In the first stage (separating funnel
), 50 mL of solvent were added to 100 mL of feed, the resulted mixture was vigorously shaken by hand for 10 min in order to disperse the feed into the solvent.
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