Comparison between sequential extraction procedures and single extractions for metal partitioning in sewage sludge samples

被引:125
作者
Alborés, AF [1 ]
Cid, BP [1 ]
Gómez, EF [1 ]
López, EF [1 ]
机构
[1] Univ Vigo, Fac Ciencias Ourense, Dept Quim Analit & Alimentaria, Ourense 32004, Spain
关键词
D O I
10.1039/b001983f
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The conventional Tessier and BCR sequential extraction methods were applied to metal partitioning in sewage sludge samples collected from a waste water treatment plant. The results obtained by sequential extraction methods for Cu, Cr, Ni, Pb and Zn were compared with those estimated from single extractions using identical operating conditions applied in each individual Tessier and BCR fraction. The metal content in the extracts was measured by flame atomic absorption spectrometry. In all fractions of the BCR method, and in the three first fractions of the Tessier method, the results obtained from single extractions were in good agreement with those obtained using the sequential procedures. The oxidizable fraction of the Tessier method should be leached from the solid residue of the reducible extraction, since a very low extraction efficiency was obtained for this fraction when it was directly extracted. The total extractable metal contents obtained by both single and sequential extractions were similar for all metals in the BCR method and for Cr, Ni and Pb in the Tessier method. The recoveries obtained ranged from 93.52 to 105.8% in the two studied samples. For Cu and Zn the overall extraction efficiency of the proposed method was slightly lower than that obtained with the sequential procedure (recoveries around 90%). The precision of the proposed Tessier and BCR single extraction methods (expressed as RSD) was lower than 8% for all metals.
引用
收藏
页码:1353 / 1357
页数:5
相关论文
共 23 条
[1]  
ARIZA JLG, 1999, ANAL CHIM ACTA, V399, P295
[2]   A study of the analytical parameters important for the sequential extraction procedure using microwave heating for Pb, Zn and Cu in calcareous soils [J].
Campos, E ;
Barahona, E ;
Lachica, M ;
Mingorance, MD .
ANALYTICA CHIMICA ACTA, 1998, 369 (03) :235-243
[3]   A critical evaluation of the three-stage BCR sequential extraction procedure to assess the potential mobility and toxicity of heavy metals in industrially-contaminated land [J].
Davidson, CM ;
Duncan, AL ;
Littlejohn, D ;
Ure, AM ;
Garden, LM .
ANALYTICA CHIMICA ACTA, 1998, 363 (01) :45-55
[4]   Trace metal speciation and bioavailability in urban soils [J].
Ge, Y ;
Murray, P ;
Hendershot, WH .
ENVIRONMENTAL POLLUTION, 2000, 107 (01) :137-144
[5]   Microwave desorption treatment after the oxidation step in Tessier's sequential extraction scheme [J].
Ginepro, M ;
Gulmini, M ;
Ostacoli, G ;
Zelano, V .
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 1996, 63 (02) :147-152
[6]   COMPARISON BETWEEN MICROWAVE AND CONVENTIONAL HEATING PROCEDURES IN TESSIERS EXTRACTIONS OF CALCIUM, COPPER, IRON AND MANGANESE IN A LAGOON SEDIMENT [J].
GULMINI, M ;
OSTACOLI, G ;
ZELANO, V ;
TORAZZO, A .
ANALYST, 1994, 119 (09) :2075-2080
[7]   Operational speciation of cadmium, copper, lead and zinc in the NIST standard reference materials 2710 and 2711 (Montana soil) by the BCR sequential extraction procedure and flame atomic absorption spectrometry [J].
Ho, MD ;
Evans, GJ .
ANALYTICAL COMMUNICATIONS, 1997, 34 (11) :363-364
[8]   Sequential extraction analysis of heavy metals in sediments of variable composition using nitrilotriacetic acid to counteract resorption [J].
Howard, JL ;
Vandenbrink, WJ .
ENVIRONMENTAL POLLUTION, 1999, 106 (03) :285-292
[9]   Optimization of digestion methods for sewage sludge using the Plackett-Burman saturated design [J].
Lavilla, I ;
Perez-Cid, B ;
Bendicho, C .
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY, 1998, 361 (02) :164-167
[10]   The effect of sequential extractions of suspended particulate matter on trace metal sorption and microbial cell stability [J].
Lead, JR ;
Hamilton-Taylor, J ;
Davison, W .
SCIENCE OF THE TOTAL ENVIRONMENT, 1998, 209 (2-3) :193-199