Comparison of tungsten coil electrothermal vaporization and thermospray sample introduction methods for flame furnace atomic absorption spectrometry.
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.
Wu
Peng
P
Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China.
Zhang
Yunchang
Y
Liu
Rui
R
Lv
Yi
Y
Hou
Xiandeng
X
D019216:Metals, Heavy / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000295:instrumentation / Q000379:methods*
D019216:Metals, Heavy