Pipette 2,0 ml of the vitamin A acetate stock solution (3.11.1) into a 50 ml graduated flask (4.2.2) and make up to the mark with 2-propanol (3.8).
Pipetear 2,0 ml de la solución madre de acetato de vitamina A (3.11.1) a un matraz aforado de 50 ml (4.2.2) y enrasar con 2-propanol (3.8).