The aim of this Workshop on "Selectivity in Chemical Reactions" was to examine the specific preferences exhibited by simple chemical reactions with regards to reagents having particular energy states, symmetries, alignment and orientation and the resulting formation of certain products with their corresponding energies, states, alignment and polarisation. Such problems come close to the ultimate goal of reaction dynamics of being able to determine experimentally and theoretically state-to-state cross sections and stereochemical effects under well defined and characterised conditions. There are many examples of highly selective and specific processes to be found in atmospheric and combustion chemistry and the production of population inversions amongst vibrational and electronic states lies at the heart of the development of chemical laser systems. Only when we can understand the fundamental processes that underlie the selectivity in the formation of products in a chemical reaction and the specific requirements of initial states of the reagents, can we expect to be able to develop the explanatory and predictive tools necessary to apply the subject to the development of new laser systems, efficient combustion schemes and specific methods of chemical synthesis, to the control of atmospheric pollution and to all problems in which it is necessary to direct the outcome of a chemical reaction in a specific way. The brief given to the Workshop was to critically review the field, to discuss the present limitations and difficulties and to identify new directions.

Many years have passed since the last edition of the present book was published. The discovery during this period of many new reagents has resulted in a vast accumulation of data on their application and made this completely revised edition necessary.Numerous new tests and various new chapters have been added. Chapters 3,4 and 5 of the fifth edition have been combined into one chapter, which is divided into sections devoted to the elements. These sections are arranged in alphabetical order to make for easier location of information on a given element. To further improve the usefulness of the volume, a reference list has been provided for each sub-section followed by a biography of the appropriate quantitative methods.

Covering all theoretical and practical aspects of the applications of spot tests to organic analysis, this book includes information on more than 900 tests. It continues to be an indispensable reference to organic and analytical chemists in academia and in industry.

Reactions of Metallic Salts and Complexes, and Organometallic Compounds

The present work is in connection with the novel ligands having structural moieties of heterocyclic rings such as benzotriazole and complex forming agent such as 8-hydroxy-quinoline and salicylic acid. Hence, both moieties have been introduced briefly.

The working title of the book was The Detection of Analytes by the Resin Spot Tests Method. Firstly, we decided to sort out all published qualitative methods systematically against analytes. We were not discouraged by the obstacles, such as the study of a great number of papers published in Japanese, the difficulty in locating (especially older) publications, or the time required. Still, having in mind not to burden unnecessarily the volume of the book, we dismissed the idea of systematically listing all the procedures in detail. Nevertheless, a relatively large number of them found a place in the book, and perhaps this will contribute to the stirring of spontaneous interest in this technique in the ranks of applied chemists and others who a priori shun the technique.

This report compares extraction procedures using 1-nitroso-2-naphthol and dimethylglyoxime for the spectrophotometric determination of palladium In titanium-base alloys. Dimethyglyoxime has greater selectivity hut lower sensitivity, similar precision (about 25 ppm at the 0. 2 percent level), is faster and covers a wider range of palladium contents than does l-nitroso-2-naphtho The dimethylglyoxime procedure has no interferences by any of the common or potential alloying elements, for example, cobalt, niobium, and tantalum; thus it is well suited to the determination of 0.1 to 1. 0 percent palladium in titanium-base alloys. Selectivity is improved by the presence of nitrate.

International Series of Monographs in Analytical Chemistry, Volume 37: Microanalysis by the Ring-Oven Technique, Second Edition focuses on the ring-oven method. The book first offers information on the characteristics and uses of ring-oven, gas generator, pipette, glass holder, and other accessories. The text focuses on qualitative analysis, including the systematic schemes for the analysis of metal ions; separations and reactions for acid radicals; and reactions for metal ions. The selection discusses spot colorimetry with the ring-oven method. Concerns include determination of iron and other metals, amplification reactions, removal of interfering ions, and determination of anions. The radiochemical applications of ring-oven method, including determination of inactive substances, identification of radionucleides, and separation procedures, are explained. The text also discusses the combination of ring-oven method with electrography, thin-layer chromatography, and solvent extraction. The book is a valuable source of information for readers interested in the ring-oven method.