Atomic absorption spectrometry 1.5.4 Validation of methodology 2 Atomic fluorescence spectrometry 1.1 Flame atomization 1.1.1 Sample introduction 2.1 Discharge-excited atomic fluorescence 2.2 Laser-excited atomic fluorescence 1.1.1.1 Transport/nebulization 1.1.1.2 Tube-in-flame/atom trapping techniques 3 Laser-based spectroscopy 4 References 1.1.2 Interference studies 1.1.3 Sample introduction by flow injection 1.1.4 Sample pretreatment T his review follows on from last year's1 and describes the 1.1.5 Chromatographic detection 1.2 Electrothermal atomization developments in atomic absorption and fluorescence spectrometry since that time. Included in this review are 1.2.1 Atomizer design and surface modification 1.2.1.1 Graphite atomizers fundamental processes and instrumentation in the areas of atomic absorption and atomic fluorescence spectrometry, 1.2.1.2 Metal atomizers and metallic coatings 1.2.2 Sample introduction together with advances in related techniques such as atomic magneto-optical rotation spectrometry and laser enhanced 1.2.2.1 Slurry and solid sampling 1.2.2.2 Gas sampling ionization. T he review of atomic emission spectrometry may be found in ref. 2. 1.2.2.3 Coupled techniques and preconcentration 1.2.2.4 Electrodeposition Once again, to aid the reader, some of the sub-headings have been modified to reflect the material presented in this year's 1.2.3 Fundamental processes 1.2.4 Interferences review, although the general format is the same as in previous years. 1.2.4.1 Spectral interferences 1.2.4.2 Chemical modifiers-general Comments on the review and suggestions for improvements are welcomed by the review coordinator. 1.2.4.3 Chemical modifiers-palladium 1.2.4.4 Other chemical modifiers 1.2.5 Developments in technique 1 Atomic absorption spectrometry 1.3 Chemical vapour generation 1.3.1 Hydride generation This annual ASU review is based on information selected from 1.3.1.1 General studies of fundamentals, techniques and a database containing approximately 4000 references to analytinstrumentation ical atomic spectrometry. An overview of atomic spectroscopic 1.3.1.2 Determination of individual elements databases available on the World Wide Web has been prepared 1.3.2 Mercury by cold vapour generation by Wiese.3 General reviews of atomic spectroscopy which 1.3.3 Volatile organic compound generation and metal include AAS and AFS have been published by Jackson and vapour separation Lu (531 refs.)4 and He and Shu (378 refs.).5 1.4 Spectrometers One of the most interesting developments reported for some 1.4.1 Light sources time has been the detection of atomic absorption in aqueous 1.4.2 Continuum source and multi-element AAS solution by Panichev and Sturgeon.6 Dilute solutions of NaBH 4 1.4.3 Background correction (0.0025%) were merged with ppm solutions of Ag, Cu and Pd 1.4.4 Detectors in a custom-built spectrophotometric flow cell mounted in 1.5 Chemometrics and computerization place of the burner in an AA spectrophotometer. A back-1.5.1 Calibration ground corrected AA signal was detected during the ...