(1)Semi-Micro Qualitative Analysis (2)Semimicro-Methods for the Elementary Analysis of Organic Compounds (3) A Textbook of Elementary Quantitative Analysis

Abstract

(1) FOR many years, analytical chemistry had maintained a fairly static state; dependable methods of detecting and estimating the more commonly used elements had been worked out, and these were adhered to in a more or less rigid manner. During the past two decades, however, there has been a remarkable revival of interest, new methods have been adopted and a nearer approach made to the ultimate ideal of one specific procedure for each cation or anion. This movement has been due partly to the use in industry of a larger number of the chemical elements, especially the so-called rarer elements, partly to the discovery of increasingly sensitive reagents and partly to the desire of the analyst to know more and more about less and less. The two latter causes have conspired to give birth to micro -chemistry, a subject which has advanced so rapidly that it will undoubtedly play a large part in future schemes of analysis. For that reason, the authors of the work under review have deemed it wise that students should have practical acquaintance with some of the technique of micro-analysis. They have therefore developed a scheme whereby drop-reaction methods are applied to the ordinary system of qualitative analysis, and for which 1-2 c.c. of solution containing some 20 mgm. of material suffices for the usual group separations and confirmatory tests.

(1)Semi-Micro Qualitative Analysis

By Prof. Carl J. Engelder Tobias H. Dunkel-berger Dr. William J. Schiller. Pp. x + 265. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1936.) 13s. 6d. net.

(2)Semimicro-Methods for the Elementary Analysis of Organic Compounds

By Prof. Dr. Eduard Sucharda Boguslaw Bobranski. Authorised translation by Dr. George W. Ferguson. Pp. vii + 52. (London: A. Gallen-kamp and Co., Ltd., 1936.) 6s. net.

(3) A Textbook of Elementary Quantitative Analysis

By Prof. Carl J. Engelder. Second edition. Pp. xiv + 270. (New York: John Wiley and Sons, Inc.; London: Chapman and Hall, Ltd., 1936.) 13s. 6d. net.