Radiometric Titrations [antikvár]

PREFACE The use of radioactive isotopes keeps spreading from year to year in various fields of Analytical Chemistry. The application of labelled atoms has led to an appreciable improvement of classical analytical procedures, particularly of the various titration processes. In recent years a large number of communications have been published in connection with the radiometric determination of the equivalence point in respect of the various titration processes of inorganic and organic substances in aqueous and non-aqueous média. In fact, the end-point of titrations can be established in a radiometric way frequently much more accurately than with the aid of conventional coloured organic indicators. Furthermore, the methods of radiometric titration readily lend themselves for use in automatic analysis. As regards the development and spreading of radioactive analytical methods, the authors of the present work rendered valuable services in that both their own experiences and those gathered by other research workers are exhaustively summarized in the book. First, the historical development of the radiometric method and its theoretical fundamentals are presented. Subsequently, various techniques of radiometric precipitation titrations carried out by the measurement of activity in radioactive solutions and by absorption of radioactive radiations are described. The practical examples illustrating the suitability of this method for solving many theoretical problems in Analytical Chemistry, such as the investigation of the composition, solubility, co-precipita-tion, etc. of various compounds, are of particular interest. In the next chapter of the book, the authors present the titration methods based on the formation of complex compounds, followed by a description of titration techniques based on extraction and ion-exchange. This very interesting trend of radiometric titrations deserves particular attention because it allows the determination