期刊
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
卷 30, 期 10, 页码 1672-1684出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.trac.2011.04.021
关键词
Atomic spectrometry; High-performance liquid chromatography; Hydride-forming element; Organic compound; Photo-induced chemical-vapor generation; Sample introduction; Speciation; Transition metal; Ultraviolet irradiation; Volatile species
资金
- National Science Fund for Distinguished Young Scholars [21025729]
- National Natural Science Foundation of China [20907062, 20921063]
Chemical-vapor generation (CVG) is widely used as a sample-introduction technique for atomic spectrometry, with the advantages of efficient matrix separation, high analyte-transport efficiency, and high selectivity and sensitivity. Recently, photoinduced CVG (photo-CVG) was demonstrated to be a powerful alternative to conventional CVG. In photo-CVG, volatile species (including hydrides, elemental, carbonylated and alkylated analytes) are generated from non-volatile precursors by ultraviolet irradiation in the presence of low-molecular-weight organic compounds. Photo-CVG is simple, fast and environmentally friendly with little interference from transition metals. Its analytical applications have been demonstrated in analysis of Hg, conventional hydride-forming elements (As, Bi, Sb, Se, Te), transition metals (Ni, Co, Fe) and non-metals (I). In addition, photo-CVG was developed as a simple, effective interface between high-performance liquid chromatography (H PLC) and atomic spectrometry. This review summarizes the applications of photo-CVG for various analytes and as a novel interface between HPLC and atomic spectrometry. We also discuss current research on the possible reaction mechanism of photo-CVG. (C) 2011 Elsevier Ltd. All rights reserved.
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