Podcast
Questions and Answers
What is the purpose of comparing the chromatographic pattern of an unknown sample to patterns produced by known petroleum products?
What is the purpose of comparing the chromatographic pattern of an unknown sample to patterns produced by known petroleum products?
- To measure the explosive power of the unknown sample
- To identify accelerants in the unknown sample (correct)
- To classify the unknown sample as a high explosive
- To determine the chemical composition of the unknown sample
Where can one find the Ignitable Liquids Reference Hydrocarbon Collection (ILRC) that serves as a valuable reference for forensic analysts?
Where can one find the Ignitable Liquids Reference Hydrocarbon Collection (ILRC) that serves as a valuable reference for forensic analysts?
- On the Forensic Analysis National Database
- On a university's physical library
- On a specific website at <a href="http://ilrc.ucf.edu">http://ilrc.ucf.edu</a> (correct)
- On the National Explosives Reference Collection website
In gas chromatography/mass spectrometry, how are complex chromatographic patterns simplified?
In gas chromatography/mass spectrometry, how are complex chromatographic patterns simplified?
- By analyzing explosives decomposition speed
- By comparing samples with known petroleum products
- By using vapor concentration technique (correct)
- By applying charcoal strip absorption
What characterizes low explosives like black powder and smokeless powder?
What characterizes low explosives like black powder and smokeless powder?
Why is the sudden buildup of gas pressure significant in defining an explosion?
Why is the sudden buildup of gas pressure significant in defining an explosion?
In forensic analysis, what method is typically used to compare chromatograms from accelerant standards with the unknown sample?
In forensic analysis, what method is typically used to compare chromatograms from accelerant standards with the unknown sample?
What is the purpose of the charcoal strip in the vapor concentration technique during the recovery of accelerant residues?
What is the purpose of the charcoal strip in the vapor concentration technique during the recovery of accelerant residues?
What happens to the volatile residue in fire-scene debris when the airtight container is heated?
What happens to the volatile residue in fire-scene debris when the airtight container is heated?
What role does a syringe play in the recovery of accelerant residues from fire-scare debris?
What role does a syringe play in the recovery of accelerant residues from fire-scare debris?
What is the primary function of a gas chromatograph in analyzing flammable residues?
What is the primary function of a gas chromatograph in analyzing flammable residues?
Why are petroleum distillates such as gasoline and kerosene mentioned in relation to arsons?
Why are petroleum distillates such as gasoline and kerosene mentioned in relation to arsons?
How can a forensic analyst determine the accelerant used to initiate a fire using gas chromatography?
How can a forensic analyst determine the accelerant used to initiate a fire using gas chromatography?
What type of explosives are relatively insensitive to heat, shock, or friction and will burn rather than detonate if ignited in small quantities in the open air?
What type of explosives are relatively insensitive to heat, shock, or friction and will burn rather than detonate if ignited in small quantities in the open air?
What is the most popular and powerful military explosive often encountered in the form of pliable plastic known as C-4?
What is the most popular and powerful military explosive often encountered in the form of pliable plastic known as C-4?
Which homemade explosive has been used by terrorist organizations and can be made by combining acetone and peroxide in the presence of an acid?
Which homemade explosive has been used by terrorist organizations and can be made by combining acetone and peroxide in the presence of an acid?
What must detonate secondary explosives?
What must detonate secondary explosives?
What is known as the speed of decomposition in explosives?
What is known as the speed of decomposition in explosives?
Which high explosive has all but disappeared from the industrial explosive market in recent years, being replaced by ammonium nitrate-based explosives?
Which high explosive has all but disappeared from the industrial explosive market in recent years, being replaced by ammonium nitrate-based explosives?
