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Questions and Answers
What is the primary purpose of thin layer chromatography (TLC) in forensic chemistry?
What is the primary purpose of thin layer chromatography (TLC) in forensic chemistry?
- To identify the exact molecular structure of a compound
- To determine the optical activity of a substance
- To separate and visualize the components of a mixture (correct)
- To quantify the amount of a specific compound in a sample
In forensic chemistry, what is the term for the process of comparing a known substance with an unknown substance to determine their similarity?
In forensic chemistry, what is the term for the process of comparing a known substance with an unknown substance to determine their similarity?
- Analytical profiling
- Speciation
- Identification (correct)
- Quantitation
Which of the following instruments is commonly used in forensic chemistry to analyze the molecular structure of a compound?
Which of the following instruments is commonly used in forensic chemistry to analyze the molecular structure of a compound?
- Gas chromatograph
- Infrared spectrophotometer
- Mass spectrometer (correct)
- Ultraviolet-visible spectrophotometer
What is the term for the process of interpreting the results of a forensic analysis to draw conclusions about the evidence?
What is the term for the process of interpreting the results of a forensic analysis to draw conclusions about the evidence?
In forensic chemistry, what is the term for the process of collecting and preserving physical evidence from a crime scene?
In forensic chemistry, what is the term for the process of collecting and preserving physical evidence from a crime scene?
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Study Notes
Forensic Chemistry Techniques
- Thin layer chromatography (TLC) is used to separate, identify, and quantify the components of a mixture.
Substance Identification
- The process of comparing a known substance with an unknown substance to determine their similarity is called comparison analysis.
Instrumentation
- Mass spectrometry is commonly used to analyze the molecular structure of a compound.
Result Interpretation
- The process of interpreting the results of a forensic analysis to draw conclusions about the evidence is called interpretation.
Crime Scene Investigation
- The process of collecting and preserving physical evidence from a crime scene is called evidence collection and preservation.
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