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A sample contains the following: 10% procaine hydrochloride 15% quinine hydrochloride 15% methapyraline hydrochloride 7% heroin...

A sample contains the following:

10% procaine hydrochloride

15% quinine hydrochloride

15% methapyraline hydrochloride

7% heroin hydrochloride

3% heroin base

50% lactose

Propose a separation scheme to isolate the heroin base.

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