High-Resolution Continuum Source AAS

High-Resolution Continuum Source AAS : The Better Way to Do Atomic Absorption Spectrometry

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High resolution continuum source atomic absorption spectrometry (HR CS AAS) is the most revolutionary innovation since the introduction of AAS in 1955. Here, the authors provide the first complete and comprehensive discussion of HR CS AAS and its application to the analysis of a variety of difficult matrices. Published just in time with the first commercial instrument available for this new technique, the book is a must for all those who want to know more about HR CS AAS, and in particular for all future users. The advantages of the new technique over conventional line source AAS are clearly demonstrated using practical examples and numerous figures, many in full color. HR CS AAS is overcoming essentially all the remaining limitations of established AAS, particularly the notorious problem of accurate background measurement and correction. Using a continuum radiation source and a CCD array detector makes the spectral environment visible to several tenths of a nanometer on both sides of the analytical line, tremendously facilitating method development and elimination of interferences. Conceived as a supplement to the standard reference work on AAS by B. Welz and M. Sperling, this book does not repeat such fundamentals as the principles of atomizers or atomization mechanisms. Instead, it is strictly focused on new and additional information required to profit from HR CS AAS. It presents characteristic concentration for flame atomization and characteristic mass data for electrothermal atomization for all elements, as well as listing numerous secondary lines of lower sensitivity for the determination of higher analyte concentrations. The highly resolved molecular absorption spectra of nitric, sulfuric and phosphoric acids, observed in an air acetylene flame, which are depicted together with the atomic lines of all elements, make it possible to predict potential spectral interferences.show more

Product details

  • Other digital | 296 pages
  • Wiley-VCH Verlag GmbH
  • Weinheim, Germany
  • 3527606513
  • 9783527606511

Review quote

"Given the likelihood that the future of atomic absorption spectrometry lies with CS AAS, it would be highly desirable for any collection serving researchers who use atomic absorption spectrometry." (E-STREAMS, June 2006) "...excellent science...and clear presentation offered in this volume. I highly recommended it for readers who are in involved in fundamental research using atomic spectroscopy..." (Journal of the American Chemical Society, July 20, 2005)show more

Table of contents

HISTORICAL DEVELOPMENT OF CONTINUUM SOURCE AAS THEORETICAL CONCEPTS Spectral Line profiles Atomic Absorption with a Continuum Source Structure of Molecular Spectra INSTRUMENTATION FOR HR-CS AAS Radiation Source Research Spectrometers with Active Wavelength Stabilization Detector The contrAA 300 from Analytik Jena AG SPECIAL FEATURES OF HR-CS AAS The Modulation Principle Simultaneous Double-beam Concept Selection of Analytical Lines Sensitivity and Working Range Signal-to-Noise Ratio, Precision and Limit of Detection Multi-element Atomic Absorption Spectrometry Absolute Analysis MEASUREMENT PRINCIPLE IN HR-CS AAS General Considerations Background Measurement and Correction THE INDIVIDUAL ELEMENTS Al, Sb, As, Ba, Be, Bi, B, Cd, Ca, Cs, Cr, Co, Cu, Eu, Ga, Ge, Au, In, Ir, Fe, La, Pb, Li, Mg, Mn, Hg, Mo, Ni, Pd, Pd, P, Pt, K, Rh, Rb, Ru, Se, Si, Ag, Na, Sr, S, Te, Tl, Sn, Ti, W, V, Zn ELECTRON EXCITATION SPECTRA OF DIATOMIC MOLECULES General Considerations Individual Overview Spectra SPECIFIC APPLICATIONS Flame Measurements OUTLOOKshow more

About Bernhard Welz

Since 1999 Bernhard Welz is Professor of Analytical Chemistry at the Universidade Federal de Santa Catarina, Florianopolis, Santa Catarina, Brazil, where he teaches instrumental analytical chemistry and atomic spectroscopy. Previously he worked with Perkin-Elmer for 32 years in various positions, the last 16 years as Director of Applied Research Atomic Spectrometry. Helmut Becker-Ross is scientific project leader at the ISAS - Institute for Analytical Sciences, Dept. Berlin. From 1971 to 1980 he worked at the Central Institute for Optics and Spectroscopy on the development of infrared Fourier-spectrometers. Since 1981 (from 1992 at ISAS) he has been working with his team on the development and application of echelle spectrometers from vacuum-UV to near-IR. Together with companies in Berlin, Jena and Uberlingen he has brought several spectroscopic instruments to market. Stefan Florek is a senior scientist at the ISAS, Dept. Berlin. From 1976 onwards, he worked at the Academy of Sciences in Berlin in the field of optical design and development of instrumentation for applications in atomic spectroscopy. He has designed several instruments successfully launched on the market. Since 1992 he has been continuing his work at ISAS. Dr. Florek's main interest focuses on the use of high-resolution spectroscopy with solid-state detectors for analytical sciences and laser spectroscopy. Uwe Heitmann is a scientist at the ISAS, Dept. Berlin. He studied physics at the Technical University in Berlin and took his PhD with a thesis on laser-excited atomic fluorescence spectrometry in the visible to vacuum-UV range.From 1994 to 2001 he worked for the GOS Berlin in different research projects on the development of high-resolution spectrometers. Since 2002 he has been in the group led by Helmut Becker-Ross at the ISAS. His main research field is the setup and further development of the novel analytical method of continuum source AAS as well as its transfer into the commercial market. All authors cooperate with the major instrument manufacturer Analytik Jena.show more