Analytical Chemistry For Undergraduates
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ISBN:
₹525.00
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I am pleased to present the book on Analytical Chemistry for Undergraduates in the hands of students learning analytical chemistry at undergraduate level and the teachers of analytical chemistry. The book is written by keeping in mind curriculum of analytical chemistry prescribed by UGC that is taught at different levels through different papers.
Analytical chemistry is the core part of curriculum of chemistry. Therefore, there is need of understanding it from very basics. The book focuses on understanding the terms and principles involved in analytical chemistry. The book aims to explain techniques of analysis with simple examples. The content of this book attempts to clarify the fundamentals of the subject without going through exhaustive details.
In this book of analytical chemistry, we have tried to cover classical methods of analysis like volumetric analysis and gravimetric analysis. We have also emphasized on study of various instrumental methods of analysis. The book also includes study of classical separation techniques like solvent extraction and modern techniques like chromatography.
To develop interest of learners, labelled diagrams and solved problems are given wherever necessary. At the end of each chapter, multiple choice questions, short answer questions and long answer questions are also given.
Considering the depth of undergraduate students, book is written in very simple language and unnecessary explanation is avoided. It will definitely generate interest of the learner in understanding of the subject. I hope this book will be useful for the undergraduate students of chemistry.
1. Introduction to Analytical Chemistry
Introduction: Analytical chemistry, its interdisciplinary nature, importance of analytical chemistry, types of analysis: qualitative and quantitative analysis.Concept of sampling, definition, procedure of sampling, types of sampling. Accuracy, precision, significant figures, significance of zero, and rounding off. Errors: Definition, types, and sources of errors, minimization of errors. good laboratory practices: Material safety data sheet (MSDS), fire safety, Handling of chemicals.
2. Volumetric Analysis
Molecular weight, formula weight, equivalent weight, calculation of equivalent weight of acids, bases, oxidizing and reducing agents, units of concentration – molarity, normality, formality, molality and parts per million (ppm), numerical, standard solution, primary and secondary standards, titrant, analyte, millimoles and milliequivalents, equivalence point, endpoint. Measurement of volume, the effect of temperature on volume, apparatus for precise measurement of volume: pipette, burette, volumetric flask, calibration of pipette, burette, and volumetric flask.
3. Acid-Base Titrations
Principle, Acid–base indicators, Henderson-Hasselbalch equation, transition range of indicators. study of following acid-base titrations with respect to the neutralization curve, selection of indicators, and calculation of PH i) Strong acid versus strong base ii) Weak acid versus strong base iii) Strong acid verses weak base. Applications of acid-base titrations.
4. Precipitation Titrations
Principle, precipitation titration curve,use of indicators in the detection of endpoint. Preparation of AgNO3 solution its standardisation by Mohr’s method. Applications of precipitation titrations. Estimation of halides by Fajan’s method. Estimation of halides by Volhard’s method.
5. Redox Titrations
Oxidation, reduction, redox reaction, oxidizing agents, reducing agents, and redox titrations. Titration of Ce (IV) versus Fe (II), nature of titration curve, calculation of emf during titration.
Detection of endpoint- redox indicators, self-indicators and starch indicator. Titrations involving iodine: Iodimetry and Iodometry. Determination of dissolved oxygen (DO) of a water sample.Applications of redox titrations.
6. Complexometric Titrations
Introduction, Complexes, ligands, types of ligands, chelates, chelating agents. Formation of complex, formation constant.Chelating agent EDTA, EDTA equilibria, EDTA titration curve. Detection of end point- use of indicators, principle involved in colour change of indicator, characteristics of metal ion indicators. Applications of complexometric titration with reference to analysis of soil: Estimation of calcium and magnesium ions by complexometric titrations.
7. Gravimetric Analysis
Introduction, advantages of gravimetric analysis Solubility product (with problems), conditions for precipitation.Steps of gravimetric analysis: Preparation of solution, precipitation, digestion. Impurities in the precipitate: co-precipitation and post-precipitation. Filtration, washing, drying or ignition, weighing. Applications – estimation of Ba as BaSO4, Ni as Ni-DMG, Pb as PbCrO4.
8. Chromatography
Definition, Introduction, advantages and disadvantages of chromatography. Principle of chromatography, classification of chromatography – partition, adsorption and ion exchange chromatography. Paper chromatography: principle, technique, Rf value, ascending and descending techniques, paper chromatographic separation of metal ions, applications. Thin layer chromatography (TLC): principle, technique and applications.Ion exchange (Column) chromatography- cation and anion exchange resins, principle, technique and applications.
9. Gas Chromatography
Introduction, Principles, Gas chromatography Columns, Gas Chromatography Detectors, Column Efficiency in Chromatography- Theoretical Plates, Van Deemter Equation, Capacity Factor and Resolution, Problems.
10. Ion Exchange Chromatography
Introduction, Cation Exchange Resins, Anion Exchange Resins, Cross-linkage, Effect of pH Separation of Amino Acids, Effect of Complexing Agents-Separation of Metal ions on Anion Exchange Columns, Applications of Ion Exchange Chromatography.
11. Size Exclusion Chromatography
Introduction, Principles, Exclusion Limit, Types of Gels, Applications.
12. High-Performance Liquid Chromatography
Introduction, Principles, Equipment for HPLC, Choice of Column Materials for HPLC, Applications.
13. Solvent Extraction
The Distribution Co-efficient, The Distribution Ratio, Percent Extracted, Solvent Extraction of Metals – Ion Association Complex and Metal Chelates, The Extraction Process, The Separation Efficiency of Metal Chelates, Analytical Separations, Multiple Batch Extractions, Countercurrent Distribution, Simple numerical problems on Percent Extracted and Multiple Extraction, Problems.
14. Spectrometry
Origin of spectra, Interaction of electromagnetic radiation with matter, Electro-magnetic Spectrum, The Absorption of Radiation, Solvents for Spectrometry, Quantitative Calculations, Beer’s Law, Principles of instruments – Sources, Monochromators (prism, diffraction gratings, Optical filters), Cells, detectors, Slits Width, Single Beam Spectrometer, Spectrometric Errors, Deviation from Beer’s Law – Chemical deviation, Instrumental deviation, Problems.
15. Infrared Spectrometry
Infra-red Spectrometry – Principles, Theory, Instrumentation, Source, monochromator, detectors, Single beam, Double beam, Types, Sampling Technique, Solvents, Spectrometric error, FTIR introduction, General applications.
16. Emission Spectrometry
Flame Emission Spectroscopy – Principles, Theory, Instrumentation, Experimental techniques, Interferences and applications, Advantages and disadvantages, Plasma Emission Spectrometry – Principles, Plasma as excitation source, inductively coupled Plasma source, ICP-AES Instrumentation, Applications.
17. Atomic Absorption Spectrophotometry
Principles, Instrumentation – Sources, Burners, Flames, Interferences – Spectral Interferences, Ionization Interferences, Refractory Compound Formation, Physical Interferences, Use of Organic Solvents, Sample Preparation, Applications of AAS.
18. Potentiometry
Potentiometer, The Cell for Potential Measurements, Combination Electrode, Theory of Glass Membrane Potential, The Alkaline Error, The Acid Error, Standard Buffers, Ion-selective Electrodes – Glass Membrane Electrodes, Precipitate Electrodes, Solid-State Electrodes, Liquid-Liquid Electrodes, Plastic Membrane/Ionophore Electrodes, Coated Wire electrodes, Enzyme Electrodes.
19. PH-metry
Introduction to pH meter, The Glass pH Electrode Principle, Accuracy of pH Measurements, Measurements with the pH-meter, Making the pH Measurement, Fundamental limitations, Maintenance.
20. Electrophoresis
Introduction, Principles of Electrophoresis, Properties of Charged Molecule, Theory of Electric Double layer, Classification of Electrophoresis Methods, Techniques of electrophoresis, Applications in Inorganic chemistry.
21. Nephelometry and Turbidimetry
Introduction, Turbidimetry and Colorimetry, Nephelometry and Fluorimetry, Choice between Nephelometry and Turbidimetry, Theory, Instrumentation, Comparison of spectrometry, Turbidimetry and Nephelometry, Applications of Turbidimetry and Nephelometry.
22. Thermal Methods
General Discussion, Thermogravimetry, Instruments for thermobalance.Important conditions for instruments in Thermogravimetry Applications of thermogravimetry Differential Techniques. Factors Affecting Thermogravimetric Curves Differential Thermal Analysis (DTA) and Differential Scanning Calorimetry (DSC), Instruments for DTA and DSC, Experimental and Instrumental Factors, Applications of DTA and DSC.