drugs
regular use of this drug may lead to physical dependency?
marijuana is considered to be a__?
hallucinogen
what is percentage (25%, 35%, 75% or 90%) of evidence evaluated in crime lab is drug-related?
75%
the marquis reagent use on drug evidence and turns purple; the drug that could have been tested?
heroin
which type of test would logically be used first by drug analyst?
color testing
what drug is not derived from opium: codeine, heroin, marijuana, or morphine?
marijuana
what is most potent form of marijuana?
liquid hashish
drugs with highest potential for abuse but has current medical use with severe restrictions are listed in which schedule?
Schedule II
the van urk reagent was used on sample and turned bluish-purple; what does this indicate presence of?
LSD
the specificity of microcrystalline tests is (greater than, less than, same as) the specificity of color tests?
greater than
heroin is a chemical derivative of?
morphine
what drug is used to eliminate an addict's desire for heroin?
methadone
what is a screening test used for?
what light sources does spectrophotometry use?
infrared, UV and visible
Duquenois-Levine solutions were used on sample & the chloroform layer turned purple suggesting that the sample tested is?
marijuana
there is a higher likelihood of psychological dependence with the continued use of these 4 drugs?
heroin, marijuana, cocaine, amphetamines
the most difficult drug addition to overcome is: alcohol, crack cocaine, heroin, nicotine, caffeine?
crack cocaine
what is purpose of confirmation test?
used to identify the presence of a specific substance in an unknow sample
which absorption spectrum is equivalent to a 'fingerprint" of a substance?
IR (infrared)
TLC (thin layer chromatography) uses ___ as its moving phase
liquid
what are three physical symptoms that happen during abstinence (withdrawal) syndrome?
hallucinations, stomach cramps/vomiting, body chills, and/or convulsions
Of the following what is not a stimulant: amphetamine, caffeine, ethyl alcohol, cocaine?
ethyl alcohol
the controlled substance act established five schedules of classification for substances based on what 4 factors?
medical value
potential for physical dependence
potential for psychological dependence
potential for abuse
which technique allows for both separation & specific identification of a questioned mixture of substances?
GC/MS (gas chromatography/mass spectrometry)
for these factors state high or low level of dependence is likely to be yield:
-daily, scheduled use of small/moderate amounts of drug -user's expectation of significant effects of drug -use of drug with no potential for negative symptoms following withdrawal
-H
-H
-L