| Abstract | In this introductory chapter, some historical points addressing the genesis of vapor generation techniques (VGTs) are briefly highlighted, particularly within the context of the limitations facing classical analytical atomic spectroscopic techniques, so as to better appreciate the advantages arising from the adoption of VGTs for spectrochemical analysis. Popular flame and plasma sources often suffer from poor sample introduction and atomization efficiencies as well as interferences, whereas graphite furnace atomizers are most constrained by the latter effects. The various steps involved in a generic vapor generation system are detailed, namely, analyte derivatization, gas–liquid separation, analyte transport, and atomization. For those systems that use precollection of volatile species, their sequestration and subsequent release efficiencies are of concern. The advantages and disadvantages of utilizing VGTs for analyte introduction are discussed in general and briefly compared with those of classical solution sample introduction techniques interfaced to atomic spectroscopic sources. An overview of the topics covered is given. |
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