Instrumentation in Forensic Analysis Quiz Crafted By-
Dr. Ranjeet Singh
CEO and Managing Director,
Sherlock Institute of Forensic Science India Pvt. Ltd, New Delhi
Introduction to Instrumentation in Forensic Analysis
Instrumental analysis plays an important role for forensic science practitioners in many areas, including but not limited to, trace evidence, fire and arson investigation, toxicology, and controlled substances. A physical property of the sample to be analyzed is chosen in instrumental analysis for the determination of its chemical composition. Analysis of the sample can be of any type i.e. biochemical, organic, inorganic, physical, or analytical. Irrespective of the type of analysis, the main purpose to be served is to extract information about the composition of the sample. This is the reason why instrumental analysis is also known as quantitative analysis. The type of instrumental technique used depends on the property of the sample measured.
Let's look at the questions and their answers.
Ques 1. Performing Electrophoresis on Agarose Gel where two electric fields are applied alternately at different angles for a defined time period, such an electrophoretic technique is known as:
a) Pulsed-field Gel Electrophoresis
b) Capillary Electrophoresis
c) Two Dimensional Gel Electrophoresis
d) Gradient Gel Electrophoresis
Answer - a) Pulsed-field Gel Electrophoresis
Ques 2. ABI prism 310 genetic Analyzers use POP-4 and POP-6 for capillary electrophoresis. POP stands for
a) Phenol Optimized Polymer
b) Performance Optimized Polymer
c) Polyacrylamide Optimized Polymer
d) Pyrolysis Optimized Polymer
Answer - b) Performance Optimized Polymer
Ques 3. The splitting of the spectral lines under the influence of Magnetic field is known as
a) Lorentz Effect
b) Zeeman Effect
c) Doppler’s Effect
d) Self Reversal
Answer - b) Zeeman Effect
Ques 4. Spin-Spin Coupling is observed in
a) Raman Spectroscopy
b) Neutron Activation Analysis
c) Mass Spectrometry
d) NMR
Answer - d) NMR
Ques 5. Assertion (A): Drug can be analysed by HPLC.
Reason (R): Because drug gets precipitated with column.
a) Both (A) and (R) are correct
b) Both (A) and (R) are correct, but (R) is not correct explanation of (A)
c) (A) is true, but (R) is false
d) (A) is false, but (R) is true
Answer - c) (A) is true, but (R) is false
Ques 6. The first widely noticed introduction of GC was made in 1951-52 by
a) G.D. Kohler and K. Thide
b) Henry and Pascal
c) Piobert and Pascal
d) Anthony T. James and Archer J. P. Martin
Answer - d) Anthony T. James and Archer J. P. Martin
Ques 7. Choose the correct sequence of process during Atomization in atomic absorption spectroscopy?
a) Desolvation → Nebulization→ Dissociation →Volatilization → Ionization ion
b) Nebulization → Desolvation → Volatilization →Dissociation → Ionization ion
c) Desolvation → Nebulization → Volatilization → Dissociation →Ionization ion
d) Nebulization →Volatilization → Desolvation →Dissociation →Ionization
Answer - c) Desolvation → Nebulization → Volatilization → Dissociation →Ionization ion
Ques 8. The X-ray diffraction is based upon
a) Illkovic Equation
b) Bragg’s Equation
c) Boltzmann Equation
d) Van Deemter Equation
Answer - b) Bragg’s Equation
Ques 9. The ‘Magic Angle’ of NMR is at
a) 90 degrees
b) 54.7 degrees
c) 120 degrees
d) 60.8 degrees
Answer - b) 54.7 degrees
Ques 10. WCOT, WSCOT, PLOT, SCOT are types of column used in
a) HPLC
b) UPLC
c) MEKC
d) GC
Answer - d) GC