Amphetamine and Related Drugs
Amphetamine and Related Drugs
Amphetamine and Related Drugs
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Practical TLC Urine Tests<br />
The urine sample is not hydrolyzed for Test B. The<br />
urine sample is adjusted to pH 10 with potassium<br />
carbonate. Sodium chloride is also added <strong>and</strong> the<br />
mixture is extracted twice with chloroform. The<br />
chloroform phase each time is removed <strong>and</strong> filtered.<br />
The pooled chloroform extracts are washed with a<br />
weak solution of ammonium hydroxide. The washed<br />
chloroform is then extracted twice with 1 N sulfuric<br />
acid.<br />
acid<br />
4/27/2009 ٦٨