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Amphetamine and Related Drugs

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Add one drop of 0.5 % sulfuric acid in<br />

methanol to the pooled chloroform in the<br />

beaker.<br />

Evaporate carefully to near dryness in the<br />

vacuum oven at a temperature of 90 oC <strong>and</strong> a<br />

vacuum of 10 p.s.i. p.s.i.<br />

Remove the beaker <strong>and</strong><br />

allow the final few drops of solvent to air<br />

dry.<br />

4/27/2009 ٧٦

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