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Seat No.: Enrolment No.
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GUJARAT TECHNOLOGICAL UNIVERSITY
B.PHARM - SEMESTER - 5- EXAMINATION -WINTER - 2018
Subject Code:2250003 Date: 27/11/2018
Subject Name: Pharmaceutical Analysis ITI
Time:10:30 AM TO 01:30 PM Total Marks: 80
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Instructions:
- Attempt any five questions.
- Make Suitable assumptions wherever necessary.
- Figures to the right indicate full marks.
Q.1 (a) Classify Spectroscopy. Define Line Spectra, Isosbestic point and Stray Light. 06
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(b) State and Explain Lambert-Beer’s Law with factors causing deviation from law. 05
(c) Write a Short Note on: (1) Gratings 05
(i1) Simultaneous Equation Method
Q.2 (a) Explain different types of Stretching & Bending Vibrations in IR Spectroscopy. 06
(b) Differentiate Dispersive IR and FT IR. 05
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(c) Write a Short Note on: (i) Finger Print Region 05
(i1) Sample Preparation Techniques.
Q.3 (a) Enlist Ionisation Techniques in Mass Spectroscopy. Explain any two in detail. 06
(b) Give a brief account of Mc Lafferty Rearrangement & TOF Mass Analyser. 05
(c) Explain different types of peaks observed in Mass spectrum. 05
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Q.4 (a) Describe principle & instrumentation of NMR Spectroscopy. 06
(b) Define Chemical Shift. Give factors affecting Chemical shift. 05
(c) Explain Spin splitting, Spin-Spin coupling & Coupling Constant. 05
Q.5 (a) Explain working principle of Fluorimeter with well labeled diagram. 06
(b) Differentiate Fluorescence & Phosphorescence. Draw & explain Jablonski Diagram. 05
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(c) Explain in brief factors affecting Fluorescence Intensity. 05
Q.6 (a) Describe Qualitative and Quantitative applications of UV-Visible Spectroscopy. 06
(b) Enlist Radiation Sources & Detectors used in IR Spectroscopy. Explain any one detector in detail. 05
(c) Differentiate AAS and AES. 05
Q.7 (a) Explain working principle of Flame Photometer with labeled diagram. 06
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(b) Comment on following: 05
(1) Fluorescence Spectroscopy is more sensitive than UV-Visible Spectroscopy.
(i1) Base peak in mass spectrum is peak of highest mass.
(iii)C13 NMR spectra are more difficult to record than 1H-NMR.
(iv)Fluorescence occur at shorter wavelength than Absorbance.
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(v) J value does not depend on applied magnetic field.
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(¢) Give ?max value of following compounds.
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CHO
o/@i)
OH
05
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