What is a false positive? - ACCURATE ANSWERS When a sample tests positive for a particular drug and none is actually present
What parameters should be noted when recording details about evidence? - ACCURATE ANSWERS Weight of the sample (wet or dry), colors or odors, nature of the substance, and ...
What is a false positive? - ACCURATE ANSWERS✔✔ When a sample
tests positive for a particular drug and none is actually present
What parameters should be noted when recording details about
evidence? - ACCURATE ANSWERS✔✔ Weight of the sample (wet or
dry), colors or odors, nature of the substance, and the number of
packages or units of the substance
Drug compounds that are not chemically stable may be susceptible to
what types of degradation? - ACCURATE ANSWERS✔✔ Chemical,
microbial, and physical degradation
True or False:
Different forms of electromagnetic light can induce chemical decay of
chemically unstable compounds. - ACCURATE ANSWERS✔✔ True
True or False:
Physical decomposition may involve changes in a drug's crystal lattice
structure. - ACCURATE ANSWERS✔✔ True
True or False:
, Color tests are confirmative tests. - ACCURATE ANSWERS✔✔ False
Which tests might be performed on suspected cannabis? - ACCURATE
ANSWERS✔✔ Duquenois-Levine color test and microscopic
examination of the morphological features (clothing, cystolithic, and
glandular trichomes)
True or False:
Traces of impurities in street drugs may cause misleading results or
interfere with crystal formation, making identification difficult. -
ACCURATE ANSWERS✔✔ True
Which parameters are used in the identification of drug microcrystals? -
ACCURATE ANSWERS✔✔ Angle of extinction, sign of elongation,
refractive index, and sign of absorbance
Which parameters affect how well an analyte extracts into an organic
solvent? - ACCURATE ANSWERS✔✔ Degree of ionization, the pH of
the drug environment, and the pKa of the drug
True or False:
An acid is a substance that can be charged or uncharged and is capable
of donating a proton. - ACCURATE ANSWERS✔✔ True
True or False:
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller EXAMLINKS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.