EMIT Drugs-of-Abuse Urine Assays Cross-Reactivity List

methamphetamine based on differences in chloroform solubilities. Methamphetamine is very soluble in chloroform while ephedrine and pseudoephedrine are not very soluble in chloroform. These components can be separated from a mixture by collecting the methamphetamine in the first couple of drops of a chloroform rinse. ................
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