Theory of Spectrochemical Excitation


Book Description

There are more things in heaven and earth, Horatio, Than are dreamt of in your philosophy. Hamlet There exists a fairly large number of textbooks concerned with spectrochemical analysis. Most of them deal with practical applications and instrumental factors, and provide the reader with the knowledge indispensable for conducting analyses with the help of emission spectra. Practical knowledge and experience are indeed important requisites for success fully exploiting the spectrochemical method in the field of analytical chemistry. As the method is essentially empirical, it is, in principle, a simple one, provided that we succeed in exciting all samples in an identical manner; for then, relative intensities of spectral lines can serve as the 'weights' by which to measure amounts of elements. However, creating the required constancy of excitation conditions is hampered by the very nature of the sample, whose composition profoundly influences the excitation characteristics of the light source. Therefore, spectrochemists are inevitably engaged in all the processes that determine the radiation output of the light source for a given sample. Dealing, with this ensemble of processes, that is, with 'excitation' in the widest sense, is the object of this book (cf. § 1. 1). The reader will seek in vain for enumerations of practical rules that would tell him how to tackle a particular analysis problem.










Progress in Analytical Atomic Spectroscopy


Book Description

Progress in Analytical Atomic Spectroscopy, Volume 7 is a collection of papers that covers the advances in analytical atomic spectroscopy. The book presents nine articles that cover areas such as methodologies and applications. The text first details the diagnostic opportunities of high voltage discharges, and then proceeds to presenting the practical applications of signal-to-noise treatment in analytical spectrometry. The next two chapters cover laser vaporization and ionization. Chapter 5 discusses the models in electrothermal atomization, while Chapter 6 tackles microwave induced plasma. The seventh chapter details equidensitometry. In the eighth chapter, the book talks about a study of sample volatilization in a graphite furnace by means of atomic and molecular absorption spectra. The last chapter covers the image sensor application in analytical spectrometry. The text will be of great use to chemists who aim to expand their knowledge in analytical spectrometry.




Encyclopedia of Spectroscopy and Spectrometry


Book Description

The Second Edition of the Encyclopedia of Spectroscopy and Spectrometry pulls key information into a single source for quick access to answers and/or in-depth examination of topics. "SPEC-2" covers theory, methods, and applications for researchers, students, and professionals—combining proven techniques and new insights for comprehensive coverage of the field. The content is available in print and online via ScienceDirect, the latter of which offers optimal flexibility, accessibility, and usability through anytime, anywhere access for multiple users and superior search functionality. No other work gives analytical and physical (bio)chemists such unprecedented access to the literature. With 30% new content, SPEC-2 maintains the "authoritative, balanced coverage" of the original work while also breaking new ground in spectroscopic research. Incorporates more than 150 color figures, 5,000 references, and 300 articles (30% of which are new), for a thorough examination of the field Highlights new research and promotes innovation in applied areas ranging from food science and forensics to biomedicine and health Features a new co-editor: David Koppenaal of Pacific Northwest National Laboratory, Washington, USA, whose work in atomic mass spectrometry has been recognized internationally




Handbook of Flame Spectroscopy


Book Description

Analytical flame spectroscopy is a rich and growing disci pline, rooted in the broad fields of physics and chemistry. Its applications abound not only in these large areas, but also thrive in the geosciences, materials science, and clinical and biochemical analysis. As an inevitable corollary of the field's growth, the scientist seeking to develop a fluent expertise has been forced to assimilate and master a rapidly increasing quantity of information. Our guiding hope in creating the present work has therefore been to provide the investigator with a single reference source for nearly all the material ever likely to be required in the daily conduct of basic or applied research. Flame spectroscopy is not a new analytical field. It has seen at least three major eras, in each of which much new information was developed - the Bunsen-Kirchhoff years, the Beckman D. U. years, and finally the atomic absorption years. In the Bunsen-Kirchhoff era, several new elements were discovered. During the Beckman years - nearly all the early flame emission data were taken on modified Beckman D. U. spectrometers - trace metal analysis for the alkaline metals and for many alkaline earth elements reached a new high (low?) - the parts per million level. More recently, trace metal analysis has in general achieved a new maturity with the advent of atomic absorption analysis, which was co-discovered by C. Th. J. Alkemade and Alan Walsh in 1955.




NBS Special Publication


Book Description







Microwave Discharges


Book Description

Proceedings of a NATO ARW held in Vimeiro, Portugal, May 11-15, 1992