caa a22 4500 465748376 CHVBK 20180323111826.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00323413 doi (NATIONALLICENCE)springer-10.1007/BF00323413 Application of the ligand vapour technique to the volatilization of unstable chelate compounds (particularly iron(III) trifluoroacetylacetonate) in AAS [Elektronische Daten] [J. Castillo, J. Mir, M. Garcia-Ruiz, C. Bendicho] Summary: This paper describes a method for volatilizing chelate complexes in AAS using a carrier gas containing ligand vapour in order to prevent chelate decomposition on heating. The method is evaluated with iron(III) trifluoroacetylacetonate. The sample containing chelate is injected into an electrically heated system, and is carried by nitrogen gas containing trifluoroacetylacetone H(TFA) to a silica tube where atomization occurs. This system increases the reproducibility of atomic absorption signals and decreases the high blanks which occur with the conventional method as a result of chelate decomposition. The characteristic mass of the combined analytical procedure is 1.30 ng Fe, the detection limit 12.0 ng Fe, and the relative standard deviation is 4.7% ng Fe (n=10). Sensitivity is improved 16-fold with respect to the system involving conventional nebulization and atomization of aqueous solutions in air-acetylene flame. Springer-Verlag, 1990 Castillo J. University of Zaragoza, E-50009, Zaragoza, Spain aut Mir J. University of Zaragoza, E-50009, Zaragoza, Spain aut Garcia-Ruiz M. University of Zaragoza, E-50009, Zaragoza, Spain aut Bendicho C. University of Zaragoza, E-50009, Zaragoza, Spain aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 721-725 0937-0633 338:6<721 1990 338 216 https://doi.org/10.1007/BF00323413 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00323413 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Castillo J. University of Zaragoza, E-50009, Zaragoza, Spain aut NATIONALLICENCE 700 1- Mir J. University of Zaragoza, E-50009, Zaragoza, Spain aut NATIONALLICENCE 700 1- Garcia-Ruiz M. University of Zaragoza, E-50009, Zaragoza, Spain aut NATIONALLICENCE 700 1- Bendicho C. University of Zaragoza, E-50009, Zaragoza, Spain aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/6(1990-01-01), 721-725 0937-0633 338:6<721 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer