Comparison of tungsten coil electrothermal vaporization and thermospray sample introduction methods for flame furnace atomic absorption spectrometry |
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Authors: | Peng Wu Rui Liu Xiandeng Hou |
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Institution: | a Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China b College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China |
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Abstract: | Flame furnace atomic absorption spectrometry (FF-AAS) is a newly developed flame atomic absorption spectrometric technique based on arranging a flame furnace onto the top of the flame burner head. In this fundamental investigation, 25 elements were carefully tested by using either thermospray FF-AAS or tungsten coil electrothermal vaporization FF-AAS, of which 15 volatile and semi-volatile elements (Cd, Tl, Ag, Pb, Zn, Hg, Cu, Sb, Bi, Te, In, As, Se, Sn and Au) exhibited better limits of detection compared to those by conventional FAAS; however, non-volatile or refractory elements (Fe, Co, Ni, Cr, Mn, Pd, Pt, Al, Be and V) showed inferior sensitivities by the proposed methods. |
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Keywords: | Flame furnace Atomic absorption spectrometry Tungsten coil Electrothermal vaporization Thermospray |
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