Instrumentation in Forensic Analysis

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 answer. 

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