期刊
MICROCHEMICAL JOURNAL
卷 75, 期 1, 页码 59-67出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0026-265X(03)00054-7
关键词
elemental trace analysis; atomic absorption spectrometry; alcohol automotive fuel; permanent modifier
Suitable analytical methodologies were developed allowing direct determination of As, Cu, Fe, Pb, Sb and Sn in alcohol fuel samples by electrothermal atomic absorption spectrometry. Different chemical modification approaches were tested and compared in terms of analytical performance and in practical terms. Experimental conditions were optimized allowing little sample dilution and use of calibration curves prepared with aqueous inorganic analyte standards. Methodologies were tested with analyte spiked alcohol samples. Good analyte recoveries from spiked alcohol samples, precision better than 10% and limits of detection in the sub mug l(-1) range were achieved. (C) 2003 Elsevier Science B.V. All rights reserved.
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