Exam #3

The Marquis Reagent was used on drug evidence and it turned purple. The drug being tested could be:

The Dillie-Koppanyi reagent is useful in screening for: Marijuana. Amphetamines. Barbiturates. Opiates

Duquenois-Levine solutions were used on a sample and the chloroform layer turned purple. This suggests that the tested substance is:

Scott Test solutions can indicate the presence of:

The specificity of microcrystalline tests is ________ the specificity of color tests.

Which type of test would logically be used first by the drug analyst?

Which techniques allows for both separation and specific identification of a questioned mixture of substances?

Which absorption spectrum is equivalent to a “fingerprint” of a substance and can be used for identification purposes?

A compound can tentatively be identified by gas chromatography from its:

Chromatography is NOT used to: Separate molecules in a mixture. Tentatively identify molecules. Determine colors of a compound. Aid in analysis of illicit drug preparations.

Which chromatographic process would be LEAST likely to be utilized in the crime lab? HPLC GC TLC Paper chromatography

TLC uses ________ as its moving phase.

Marijuana has potential use in which medical application? Useful as a muscle relaxant Lessening of nausea caused by anticancer drugs Reduction of excessive eye pressure in glaucoma All of the above

The administration of which drug eliminates an addict’s desire for heroin? Codeine Methadone OxyContin Morphine

The pattern and intensity of dependency on a drug does NOT depend on the: Frequency of administration. Cost of the drug. Dose and route of administration. Individual’s rate of metabolism.

Barbiturates act to: Promote relaxation. Create a feeling of well-being. Produce sleep. All of the above

Methamphetamine is a:

Cocaine is a(n):

What is true about the “club drug” Rohypnol? It results in loss of memory of what happened in the hours after ingestion. It is odorless, colorless, and tasteless. It is enhanced when combined with alcohol. All of the above

The Controlled Substance Act established five schedules of classification for substances based on the drugs: Potential for physical dependence. Medical value. Potential for psychological dependence. All of the above

The use of which drug will NOT lead to physical dependence? Heroin Alcohol Barbiturates Cocaine

Most narcotics are: Depressants to the central nervous system. Physically addicting. Obtained from opium. All of the above

Which is NOT derived from opium? Heroin Morphine Codeine Marijuana

Which is NOT a factor in determining the rate at which alcohol is absorbed into the bloodstream? The alcoholic content of the beverage The amount consumed The presence or absence of food in the stomach All of the above are factors