Practical Polarography

Practical Polarography

An Introduction for Chemistry Students

1st Edition - January 1, 1968

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  • Authors: J. Heyrovský, P. Zuman
  • eBook ISBN: 9781483264974

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Practical Polarography: An Introduction for Chemistry Students provides information pertinent to the fundamental aspects of practical polarography. This book presents the developments in polarography and provides descriptions and procedures that should be readily available for use with any available polarograph. Organized into eight chapters, this book begins with an overview of polarography that is widely employed in chemical analysis because the current-voltage curves show both the quantitative and qualitative composition of the solution. This text then explains the electrode in polarographic electrolysis, which consists either of a mercury pool at the bottom of the electrolytic cell that contains the solution under test, or of a special type of electrode of known potential. Other chapters consider the polarographic reduction of some metal ions and of some organic substances. The final chapter deals with the tables containing selected data of half-wave potentials measured against a saturated calomel electrode at 20-25°C. This book is a valuable resource for students, technicians, and chemists.

Table of Contents

  • Preface

    I. Introduction

    1. Principles of Polarography

    2. The Dropping Electrode

    3. Fundamental Measurements Using a Simple Arrangement; Polarographic Curve

    4. Reference Electrodes

    5. Polarographic Cells

    6. Supporting (Base) Electrolyte

    7. Removal of Oxygen

    8. Protection from Mercury Poisoning

    II. Polarographic Curves and their Interpretation

    1. Type of Electrode Processes at the Dropping Electrode

    2. Types of Polarographic Limiting Currents

    3. Measurement of Limiting Currents

    4. Significance and Measurement of Half-Wave Potentials

    III. Application of Instruments

    1. Polarographs and Some Auxiliary Electrical Equipment

    2. Handling of Photographic Recording Polarographs

    3. Handling of Pen Recording Polarographs

    4. Checking the Apparatus

    5. Disturbances and their Elimination

    IV. Simple Polarographic Determinations

    1. Determination of Hydrogen Peroxide

    2. Barium Traces in Strontium(II) Salts; the Method of Standard Addition

    3. Reduction of Iodate and Bromate

    4. Traces of Bromate in Chlorate

    5. Determination of Iodate in Chile Saltpetre

    6. Polarographic Spectrum

    7. Determination of Zinc Dioxide in Lithopone

    8. Determination of Copper and Zinc in Brass

    9. Acetaldehyde and Formaldehyde

    10. Determination of Formaldehyde in Pharmaceuticals

    11. Purity of Ether

    12. Reduction Waves of Glucose and Fructose

    13. Determination of Fructose in Honey

    14. Anodic Oxidation of Ascorbic Acid

    15. Determination of Traces of Nitrobenzene in Aniline

    16. Determination of Cystine

    17. Protein Reaction (according to Brdička)

    V. More Advanced Procedures in the Absence of Air

    1. Determination of Nitrate and Nitrite

    2. Anodic Waves of Chloride Ions

    3. Reduction and Oxidation Waves of Iron

    4. Oxygen Determination

    5. Acetone Determination

    6. Determination of Alkali Metals; Application of Derivative Curves

    7. Separation of Overlapping Waves

    8. Consecutive Reductions

    VI. Examples of Practical Applications

    1. Metallurgical

    2. Polarographic Behaviour of Organic Substances

    3. Applications in Pharmacy and Biochemistry

    4. Polarography in the Food Industry

    5. Polarography in Medicine

    6. Microanalytical Determinations

    7. Suppression of Maxima

    8. Polarometric (Amperometric) Titrations

    VII. Most Important Buffers

    VIII. Tables of Half-Wave Potentials


    Subject Index

Product details

  • No. of pages: 246
  • Language: English
  • Copyright: © Academic Press 1968
  • Published: January 1, 1968
  • Imprint: Academic Press
  • eBook ISBN: 9781483264974

About the Authors

J. Heyrovský

P. Zuman

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