Dr. Sereda, in order to separate a mixture containing a hydrocarbon and an amine, I am thinking you would first want to dissolve the mixture in diethyl ether since they are both soluble in this, transfer this into a separatory funnel, and then add a strong acid which will react with the amine, converting it into an ammonium salt which is soluble in water. So then in the separatory funnel, the organic layer would include the hydrocarbon component and the aqueous layer would include the amine. (The aqueous layer will contain the ammonium salt. - GS).  Is this method correct? (Yes, but not complete. Now you need to get your amine back. - GS).