MSc Chemistry (Organic And Analytical) SEM III Dec 2018-19 CHEMISTRY ANALYTICAL CHEMISTRY QULITY IN ANALYTICAL CHEMISTRY Question Paper - Mumbai University | munotes

Questions asked in this paper

• 2. Figures to the right indicate full marks

1. Q3 The use of a non-programmable calculator is permitted
2. Q1 Attempt ANY TWO of the following: the details of subsampling and storage of samples ii Write a note on ‘Pre-treatment of food sample’ Elaborate the factors which contribute to produce incorrect analytical is validation of analytical methods? Give its importance 8 marks
   • B. Attempt ANY ONE of the following: i Define: a) Representative sample b) Systematic sampling 4
   • c) Random sampling d) Bulk material for sampling List the factors to be considered while selecting a method for analysis
3. Q2 A. Attempt ANY TWO of the following: Define uncertainty and explain the rules for combining standard Describe the hardware devices for noise reduction iii Write a note on “Drug acts” iv Elaborate the significance of GMP in pharmaceutical manufacturing 8 marks
   • B. Attempt ANY ONE of the following: measurements and their uncertainties are as follows: If the final measurement is of type Y=a +b +c, calculate the combined uncertainty in the measurement of Y ii conductometer shows the following values of a solution for 10 Assuming the noise is random, Calculate the S/N ratio for the 4
4. Q3 A. Attempt ANY TWO of the following: the chelating resins. Discuss their uses in the separation of inorganic and organic compounds 8 marks
   • ii. What are the applications of gel permeation chromatography
   • iii. Discuss the principle and applications of Chromatography
   • iv. With the help of ion exchange equilibria, explain the selectivity of ion exchangers for cation and anion Paper Subject Code: 74707 Chemistry: Analytical Chemistry Quality In Analytical Chemistry (2018-19)
   • B. Attempt ANY ONE of the following: 4
   • i. What are the inorganic molecular sieves? Explain their uses
   • ii. Discuss in brief the instrumentation of Size Exclusion Chromatography
5. Q4 A. Attempt ANY TWO of the following: 8 marks
   • i. Write a note on instrumentation of supercritical fluid chromatography
   • ii. Why “CO2” is the supercritical fluid of choice?
   • iii. With the help of a labeled diagram, explain instrumentation of OPLC
   • iv. Explain the role of supercritical fluids in food analysis
   • B. Attempt ANY ONE of the following: 4
   • ii. Explain the instrumentation of Affinity chromatography
6. Q5 Attempt ANY FOUR of the following: 12 marks
   • a. Elaborate “sampling schemes”
   • b. Write the sources of analytical methods
   • c. Explain the terms repeatability and reproducibility
   • d. Explain the appropriate design and placement of laboratory equipment
   • e. Write a short note on inorganic and synthetic ion exchangers with suitable
   • f. | Describe the instrumental method of determination of molecular weight
   • g. Explain the concept of critical state and supercritical state of matter
   • h. What are the applications of Affinity chromatography?

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