FRSC 304 practice exam 1 questions
well answered to pass
Define Forensic Chemistry and provide an example of a discipline.
-definition: chemistry applied to the legal system
-ex: toxicology, controlled substances, explosives
Certification is a requirement to be credible in court. (t or f)
false
What is the difference between random and systematic error?
-random: occurs due to chance, affects precision
-systematic: occurs consistently in the measurement system, affects accuracy
Use the Henderson-Hasselbach equation to calculate the concentration of the drug in the
plasma/small intestine
-if acid, find ratios for each location [I]/[U]
-if base, find ratios for each location [U]/[I]
importance of confidence intervals
, -an important reminder of the limitations of the estimates
-range represents uncertainty of data and allows for a more nuanced interpretation of data
UV-Vis Spectrophotometry example of its use in forensic science
drug quantification, fiber color comparisons/analysis
FTIR example of its use in forensic science
obtain structural information of sample
NMR example of its use in forensic science
obtain structural information of sample
Explain how infrared light in FTIR interacts with a sample. What information does the peaks in
the resulting spectra give about the sample?
-infrared light vibrates the bonds of certain functional groups at various wavelengths
-the peaks are representative of the functional groups present in the sample
What does it mean to have column efficiency?
- to have good separation, well resolved peaks, high noise to signal ratio
well answered to pass
Define Forensic Chemistry and provide an example of a discipline.
-definition: chemistry applied to the legal system
-ex: toxicology, controlled substances, explosives
Certification is a requirement to be credible in court. (t or f)
false
What is the difference between random and systematic error?
-random: occurs due to chance, affects precision
-systematic: occurs consistently in the measurement system, affects accuracy
Use the Henderson-Hasselbach equation to calculate the concentration of the drug in the
plasma/small intestine
-if acid, find ratios for each location [I]/[U]
-if base, find ratios for each location [U]/[I]
importance of confidence intervals
, -an important reminder of the limitations of the estimates
-range represents uncertainty of data and allows for a more nuanced interpretation of data
UV-Vis Spectrophotometry example of its use in forensic science
drug quantification, fiber color comparisons/analysis
FTIR example of its use in forensic science
obtain structural information of sample
NMR example of its use in forensic science
obtain structural information of sample
Explain how infrared light in FTIR interacts with a sample. What information does the peaks in
the resulting spectra give about the sample?
-infrared light vibrates the bonds of certain functional groups at various wavelengths
-the peaks are representative of the functional groups present in the sample
What does it mean to have column efficiency?
- to have good separation, well resolved peaks, high noise to signal ratio
