High-Resolution Continuum Source AAS: The Better Way to Do Atomic Absorption Spectrometry / Edition 1

High-Resolution Continuum Source AAS: The Better Way to Do Atomic Absorption Spectrometry / Edition 1

by Bernhard Welz, Helmut Becker-Ross, Stefan Florek, Uwe Heitmann
     
 

ISBN-10: 3527307362

ISBN-13: 9783527307364

Pub. Date: 04/22/2005

Publisher: Wiley

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

Overview

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.

Product Details

ISBN-13:
9783527307364
Publisher:
Wiley
Publication date:
04/22/2005
Pages:
296
Product dimensions:
6.89(w) x 9.74(h) x 0.80(d)

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
OUTLOOK

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