SPECTROSCOPIC METHODS OF ANALYSIS

Abstract

MORE than a century has elapsed since Fox Talbot laid the foundations of chemical analysis with the spectroscope by his observation that lithia and strontia could be distinguished by optical analysis of their flame spectra. This original idea has proved so fertile that there are now few elements traces of which cannot be identified by their spectra. It is appropriate that Talbot, a notable pioneer in photography, should have initiated a technique which owes so much to the photographic plate. Indeed the development of spectroscopy and its widespread use in present–day industry would not have been possible without the photographic recording medium. Perhaps it is almost equally true that this expansion would not have occurred without the modern spectrograph with its twin virtues of optical excellence and simplicity of operation. Mr. Twyman's contributions to the design and production of such instruments are outstanding and none will question his authority to write a book on spectrochemical methods, more especially as he has maintained close contact with spectroscopists and their technique for more than forty years.

The Spectrochemical Analysis of Metals and Alloys

By F. Twyman. Pp. viii + 355. (London: Charles Griffin and Co., Ltd., 1941.) 21s. net.