期刊
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY
卷 61, 期 3, 页码 239-283出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.sab.2005.12.010
关键词
Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES); Inductively Coupled Plasma Mass Spectrometry (ICP-MS); aerosol transport phenomena; microsample analysis; nebulizer; spray chamber; desolvation system
类别
There are many fields in which the available sample volume is the limiting factor for an elemental analysis. Over the last ten years, sample introduction systems used in plasma spectrometry (i.e., Inductively Coupled Plasma Atomic Emission Spectrometry, ICP-AES, and Mass Spectrometry, ICP-MS) have evolved in order to expand the field of applicability of these techniques to the analysis of micro- and nanosamples. A full understanding of the basic processes occurring throughout the sample introduction system is absolutely necessary to improve analytical performance. The first part of the present review deals with fundamental studies concerning the different phenomena taking place from aerosol production to analyte excitation/ionization when the liquid consumption rate does not exceed 100 mu l/min. Existing sample introduction systems are currently far from the ideal and a significant effort has been made to develop new and efficient devices. Different approaches for continuously introducing small sample volumes (i.e., microsamples) have been reviewed and compared in the present work. Finally, applications as well as basic guidelines to select the best sample introduction system according to the sample particularities are given at the end of this review. (c) 2006 Elsevier B.V. All rights reserved.
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