Trace elemental determination in alcohol automotive fuel by electrothermal atomic absorption spectrometry

被引：46
作者：
Saint'Pierre, T
Aucélio, RQ [1 ]
Curtius, AJ
机构：
[1] Pontificia Univ Catolica Rio de Janeiro, Dept Quim, BR-22253900 Rio De Janeiro, RJ, Brazil
[2] Univ Fed Santa Catarina, Dept Quim, BR-88040900 Florianopolis, SC, Brazil
来源：
MICROCHEMICAL JOURNAL | 2003年 / 75卷 / 01期
关键词：
elemental trace analysis; atomic absorption spectrometry; alcohol automotive fuel; permanent modifier;
D O I：
10.1016/S0026-265X(03)00054-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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.
引用
收藏
页码：59 / 67
页数：9
相关论文
共 24 条
[1]  
*AG NAC PETR, 2000, 1 AG NAC PETR, P45
[2]   Comparative study of electrothermal atomic absorption spectrometric methods for the determination of silver in used lubricating oils [J].
Aucélio, RQ ;
Curtius, AJ .
ANALYST, 2000, 125 (09) :1673-1679
[3]   Sequential determination of Sb and Sn in used lubricating oil by electrothermal atomic absorption spectrometry using Ru as a permanent modifier and microemulsion sample introduction [J].
Aucélio, RQ ;
Curtius, AJ ;
Welz, B .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2000, 15 (10) :1389-1393
[4]   Evaluation of electrothermal atomic absorption spectrometry for trace determination of Sb, As and Se in gasoline and kerosene using microemulsion sample introduction and two approaches for chemical modification [J].
Aucelio, RQ ;
Curtius, AJ .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 2002, 17 (03) :242-247
[5]  
AUCELIO RQ, 2002, 7A RIO S AT SPECT O, V15, P148
[6]  
BASHIR S, 1994, FUEL SCI TECHN INT, V12, P1427
[7]   Determination of Ag, Pb and Sn in aqua regia extracts from sediments by electrothermal atomic absorption spectrometry using Ru as a permanent modifier [J].
da Silva, JBB ;
da Silva, MAM ;
Curtius, AJ ;
Welz, B .
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 1999, 14 (11) :1737-1742
[8]  
Gomes LAD, 1998, J BRAZIL CHEM SOC, V9, P494
[9]   Determination of arsenic and antimony in wine by electrothermal atomic absorption spectrometry [J].
Kildahl, BT ;
Lund, W .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1996, 354 (01) :93-96
[10]   Modifiers and coatings in graphite furnace atomic absorption spectrometry - mechanisms of action (A tutorial review) [J].
Ortner, HM ;
Bulska, E ;
Rohr, U ;
Schlemmer, G ;
Weinbruch, S ;
Welz, B .
SPECTROCHIMICA ACTA PART B-ATOMIC SPECTROSCOPY, 2002, 57 (12) :1835-1853
123