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WorksheetsAnalysis and Classification of poison
Total questions: 15
Worksheet time: 8mins
What is one of the biggest challenges faced by forensic scientists when analyzing poisons?
Poisons are often present in very large amounts
Poisons are easily detected and identified using analytical techniques
Poisons can be easily degraded over time
Poisons are always stable and easy to detect
Which of the following is a method to overcome the challenge of detecting poisons in small amounts?
Homogenize the sample
All of the above
Dilute the sample
Filter the sample
Which test can be used to detect the presence of opium and its derivatives?
Marquis reagent test
Fujiwara test
Trinders test
Reinsch test
What does a blue color indicate in the Fujiwara test?
Presence of antimony
Presence of cyanide
Presence of opium and its derivatives
Presence of mercury
Which technique is commonly used to identify and quantify volatile poisons?
Atomic absorption spectroscopy (AAS)
Ultraviolet-visible spectroscopy
High performance liquid chromatography (HPLC)
Gas chromatography-mass spectrometry (GC-MS)
Which technique is commonly used to analyze the elemental composition of a sample?
Atomic absorption spectroscopy (AAS)
Ultraviolet-visible spectroscopy
High performance liquid chromatography (HPLC)
Gas chromatography-mass spectrometry (GC-MS)
Which technique can be used to detect specific substances in a sample using antibodies?
Gas chromatography-mass spectrometry (GC-MS)
Atomic absorption spectroscopy (AAS)
Immunoassays
High performance liquid chromatography (HPLC)
Which technique can be used to amplify DNA sequences from poisons?
Liquid chromatography-mass spectrometry (LC-MS)
Ion mobility spectrometry (IMS)
Gas chromatography-mass spectrometry (GC-MS)
Polymerase chain reaction (PCR)
What is the definition of a poison?
A substance that is neutral to a biological system
A substance that has no effect on a biological system
A substance that is beneficial to a biological system
A substance that is harmful or destructive to a biological system
Which of the following is NOT a characteristic of an ideal poison?
Tasteless
Colourless
Soluble
Easily detectable
What are the two main sources of poisons?
Chemicals and minerals
Bacteria and fungi
Microbes and toxins
Plants and animals
What is the mode of action of corrosives?
Interacting with enzymes
Producing toxins in the body
Accumulating in the muscle of fish
Causing damage to vital organs
Which of the following is NOT an inorganic acid corrosive?
Oxalic acid
Sulfuric acid
Carbolic acid
Hydrochloric acid
What is the classification of poisons based on source?
Plants and animals
Bacteria and fungi
Chemicals and minerals
Microbes and toxins
How is most of the poison removed from the stomach in case of emergency treatment?
By administering a physiologic antidote
By gastric lavage or emetics
By administering oxygen
By giving the patient a glass of milk
