01601naa a2200241 a 450000100080000000500110000800800410001902400390006010000210009924501260012026000090024652008980025565000130115365300260116665300150119265300090120765300200121665300090123670000260124570000220127170000200129377300460131310475622023-03-08       2007    bl uuuu     u00u1 u    #d7 a10.1016/j.talanta.2006.06.0082DOI1 aFERNANDES, K. G.  aDetermination of vanadium in human hair slurries by electrothermal atomic absorption spectrometry.h[electronic resource]  c2007  aThis work describes an analytical procedure for vanadium determination in human hair slurries by electrothermal AAS using longitudinal heating (LHGA) and transversal heating (THGA) graphite fumace atomizers. The samples were powdered using cryogenic grinding and lhe hair slurries containing 0.2 g L-I were prepared in three different media for determination of vanadium: 0.14 moi L-I HNO3, 0.1 % (v/v) Triton X-100 c and 0.1 % (v/v) water soluble tertiary amines (CFA-C, pH 8). The limits of detection (LOD), limits of quantification (LOQ), and characteristic masses obtained were 0.28, 0.95 ILg L-I and 35 pg (LHGA) and 0;34, 1.131Lg L-I and 78 pg (THGA), respectively. The accuracy of the analytical results obtained by lhe proposed procedure in both equipments was confirmed by a paired t-test at lhe 95% contidence leveI and compared with a conventional procedure based on acid digestion.  avanadium  aGraphite furnance AAS  aHuman hair  aLHGA  aSlurry sampling  aTHGA1 aNOGUEIRA, A. R. de A.1 aGOMES NETO, J. A.1 aNÓBREGA, J. A.  tTalantagv. 71, n. 3, p. 1118-1123, 2007.