Simultaneous extraction scheme: A method to characterise metal forms in sewage sludge

Gupta, Seema; Mehrotra, Indu; Singh, Om V.

doi:10.1080/09593339009384861

Cited by 15 publications

(9 citation statements)

References 5 publications

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“…The significant correlations found between the different fractions of Mn and Zn obtained by this procedure suggested the existence of a dynamic equilibrium between fractions. The extraction of both metals with EDTA was correlated to that bound to carbonate fractions, which support the utilization of this reagent to extract this fraction for some works (McGrath and Cegarra, 1992;Gupta et al, 1990).…”

Section: Discussionsupporting

confidence: 63%

Comparison of EDTA and sequential extraction tests for phytoavailability prediction of manganese and zinc in agricultural alkaline soils

et al. 2006

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Section: Discussionsupporting

confidence: 63%

Comparison of EDTA and sequential extraction tests for phytoavailability prediction of manganese and zinc in agricultural alkaline soils

et al. 2006

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“…A number of comparisons have been made between the two methodologies. Gupta et al (1990) compared a simultaneous extraction with the sequential extraction procedure used by Stover et al (1976). Bendell-Young et al (1992), Tack et al (1996), and Tack and Verloo (1999) compared simultaneous extractions to the sequential extraction procedure developed by Tessier et al (1979).…”

Section: Geoarchaeology: An International Journal Sampling and Analyzmentioning

confidence: 99%

Sampling and analyzing metals in soils for archaeological prospection: A critique

Haslam

Tibbett

2004

Geoarchaeology

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This paper presents a critique of current methods of sampling and analyzing soils for metals in archaeological prospection. Commonly used methodologies in soil science are shown to be suitable for archaeological investigations, with a concomitant improvement in their resolution. Understanding the soil-fraction location, concentration range, and spatial distribution of autochthonous (native) soil metals is shown to be a vital precursor to archaeological-site investigations, as this is the background upon which anthropogenic deposition takes place. Nested sampling is suggested as the most cost-effective method of investigating the spatial variability in the autochthonous metal concentrations. The use of the appropriate soil horizon (or sampling depth) and point sampling are critical in the preparation of a sampling regime. Simultaneous extraction is proposed as the most efficient method of identifying the location and eventual fate of autochthonous and anthropogenic metals, respectively.

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“…Sequential extraction approaches are commonly used to define environmentally relevant phase-associations of elements in atmospheric particulate matter, sediment and soils (Tack and Verloo 1995;Filgueiras et al 2002;Gleyzes et al 2002;Smichowski et al 2005). An alternative approach to sequentially extracting one sample is to apply the individual reagents from a sequential procedure to separate aliquots simultaneously (Gupta et al 1990;Bendell-Young et al 1992;Tack et al 1996;Tack and Verloo 1999). From a practical perspective this approach can be justified as in most cases the information obtained from the single extraction approach is similar to the sequential approach.…”

Section: Introductionmentioning

confidence: 99%

Extraction of labile metals from solid media by dilute hydrochloric acid

Sutherland

Tack

2007

Environ Monit Assess

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Extraction of labile metals from solid media is environmentally more meaningful than a total digestion. A variety of reagents have been introduced in the literature, but dilute HCl has received the greatest attention. We compare metal concentrations liberated by a dilute HCl leach with the sum of the 3-step optimized (standardized) BCR sequential extraction procedure. This is the first study to compare these procedures over a range of grain sizes. Road-deposited sediments from 10 sites in Honolulu were fractionated into six grain size classes. Aliquots of individual fractions were digested with dilute HCl, the 3-step BCR procedure ('labile'), and a 4-acid (total) procedure. Results indicated that the weighted labile concentrations of Al, Cu, Fe, Mn, Ni, Pb and Zn were statistically greater than those from the dilute HCl leach. However, regression analysis indicated strong statistically significant relationships between the two partial extraction procedures for all metals. On a whole-sample basis, the toxicity classifications for anthropogenic-enhanced metals (Cu, Pb and Zn) were similar between extractions. Taken together, results suggest that the application of dilute HCl to solid media provides a rapid, cost-effective, and environmentally meaningful approach for contaminant monitoring.

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Simultaneous extraction scheme: A method to characterise metal forms in sewage sludge

Cited by 15 publications

References 5 publications

Comparison of EDTA and sequential extraction tests for phytoavailability prediction of manganese and zinc in agricultural alkaline soils

Comparison of EDTA and sequential extraction tests for phytoavailability prediction of manganese and zinc in agricultural alkaline soils

Sampling and analyzing metals in soils for archaeological prospection: A critique

Extraction of labile metals from solid media by dilute hydrochloric acid

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