Amphetamine and Related Drugs
Amphetamine and Related Drugs
Amphetamine and Related Drugs
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Aspirate off the lower chloroform layer <strong>and</strong> filter<br />
into another tube.<br />
Add 20 ml of chloroform for a second extraction.<br />
Shake for 5 minutes <strong>and</strong> centrifuge.<br />
Aspirate off the lower chloroform layer <strong>and</strong> filter<br />
into the second tube.<br />
Wash the filtered pooled chloroform with 10 ml of<br />
pH 9 aqueous ammonium hydroxide solution as<br />
follows: shake for 5 minutes <strong>and</strong> centrifuge <strong>and</strong><br />
aspirate off <strong>and</strong> discard the upper wash phase.<br />
phase<br />
4/27/2009 ٧٣