caa a22 4500 46574804X CHVBK 20180323111826.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00322776 doi (NATIONALLICENCE)springer-10.1007/BF00322776 Speciation of tetraalkyllead compounds by flow injection — atomic absorption spectrophotometry [Elektronische Daten] [R. Borja, M. de la Guardia, A. Salvador, J. Burguera, M. Burguera] Summary: The on-line demetallation of alkyllead compounds, with iodine, and further emulsification, provides a fast determination of total lead content in liposoluble matrices, such as gasolines. It can be carried out in a double channel manifold, using a magnetically well stirred dilution chamber for the emulsification of the samples, previous to their analysis by flame atomic absorption spectrophotometry. On the other hand, the different behaviour of tetraethyllead (TEL) and tetramethyllead (TML) can be employed for speciation of both compounds in the sample. The effect of the flow injection parameters on the sensitivity and accuracy has been studied and the figures of merit of the proposed methods evaluated. Springer-Verlag, 1990 Borja R. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut de la Guardia M. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut Salvador A. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut Burguera J. Department of Analytical Chemistry, University of Los Andes, Mérida, Venezuela aut Burguera M. Department of Analytical Chemistry, University of Los Andes, Mérida, Venezuela aut Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/1(1990-01-01), 9-15 0937-0633 338:1<9 1990 338 216 https://doi.org/10.1007/BF00322776 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00322776 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Borja R. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut NATIONALLICENCE 700 1- de la Guardia M. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut NATIONALLICENCE 700 1- Salvador A. Department of Analytical Chemistry, University of Valencia, 50 Dr. Moliner, E-46100, Burjassot (Valencia), Spain aut NATIONALLICENCE 700 1- Burguera J. Department of Analytical Chemistry, University of Los Andes, Mérida, Venezuela aut NATIONALLICENCE 700 1- Burguera M. Department of Analytical Chemistry, University of Los Andes, Mérida, Venezuela aut NATIONALLICENCE 773 0- Fresenius' Journal of Analytical Chemistry Springer-Verlag 338/1(1990-01-01), 9-15 0937-0633 338:1<9 1990 338 216 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer