Результаты (
английский) 1:
[копия]Скопировано!
Add in the centrifuge tube 20 ml of absolute ethanol and again heated at 50 OS on a water bath for 5 minutes with occasional shaking. Pull the tube, close the lid and shake badly when cooled for 5 minutes. Transfer the cooled tube in an ice bath with methanol for 15 minutes, then centrifuged 5 min at 2000 RPM. The resulting supernatant transferred into a measuring flask containing first the supernatant. Repeat the procedure to add in centrifuge tube 20 ml absolute ethanol followed by heating in a water bath, cooling, centrifugation and consolidation of direct methanol extracts.
переводится, пожалуйста, подождите..
