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Amphetamine and Related Drugs

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Urine analyzed by Test B shows an increase in<br />

background with the age of urine which partially<br />

interferes with the location of the spots after T.L.C.<br />

<strong>Amphetamine</strong>, methamphetamine, pethidine <strong>and</strong><br />

methadone are more labile compounds than morphine<br />

<strong>and</strong> codeine <strong>and</strong> more susceptible to decomposition<br />

<strong>and</strong> chemical change during storage or during testing.<br />

testing<br />

4/27/2009 ٧١

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