Copper soil fraction

Shuman L.M. Effects of tillage on the distribution of manganese, copper, iron, and zinc in soil fractions. Soil Sci Soc Am J 1985b 49 1117-1122. 

Pokrovsky OS, Viers J, Emnova EE, Kompantseva El, Freydier R (2008) Copper isotope fractionation during its interaction with soil and aquatic microorganisms and metal oxy(hydr)oxides possible structural control. Geochim Cosmochim Acta 72 1742-1757 Polyakov VB (1997) Equilibrium fractionation of the iron isotopes estimation from Mossbauer spectroscopy data. Geochim Cosmochim Acta 61 4213 217 Polyakov VB, Kharlashina NN (1994) Effect of pressure on equilibrium isotope fractionation. Geochim Cosmochim Acta 58 4739 750... 

The AETS system has been tested on a variety of soils containing one or more of the following metals arsenic, cadmium, chromium, copper, lead, nickel, and zinc. The AETS system can treat all soil fractions, including fines. 

Shuman, L.M., 1979. Zinc, manganese and copper in soil fractions. Soil Sci. 127, 10-17. 

Although concentrations in soils did not exceed the geochemical background, zinc turned out to be more mobile than copper. Mobile (fraction 1) and exchangeable (fraction 2) fractions of both metals corresponded very well with each other, reflecting first of all soil texture and the clay content. However, while fractions 4 and 2 were the main fractions of copper in most soils, the predominant concentrations of zinc were found in fractions 7 and 6, in sandy soils in fractions 6 and 2. Detailed results of metal speciation are presented in Tables 6.4-6.6 (on the following pages). 

Amendment with soluble copper in arid Israeli soils, particularly at high loading levels, resulted in initial perturbation and increased the amounts of copper in the exchangeable and the carbonate fractions in the loessial soil. This also occurred with the carbonate and the organic bound fractions (Fig. 6.10, Fig. 6.1). Even so, the soils converged quite rapidly... 

Ma, L.Q. and Rao, G.N., Chemical fractionation of cadmium, copper, nickel and zinc in contaminated soils. J Environ Qual 1997a 26 259-264. 

Ramos L., Hernandez L.M., Gonzalez, M.J. Sequential fractionation of copper, lead, cadmium and zinc in soils from or near Donana national park. J Environ Qual 1994 23 50-57. 

Pietrzak, U. and McPhail, D.C. (2004). Copper accumulation, distribution and fractionation in vineyard soils of Victoria, Australia , Geoderma, 122(2 1), 151-166. 

Reed, S.T., M.G. Allen, D.C. Martens, and J.R. McKenna. 1993. Copper fractions extracted by Mehlich-3 from soils amended with either CuS04 or copper rich pig manure. Comm. Soil Sci. Plant Anal. 24 827-839. 

Mossop KF, Davidson CM. Comparison of original and modified BCR sequential extraction procedures for the fractionation of copper, iron, lead, manganese and zinc in soils and sediments. Anal. Chim. Acta 2003 478 111-118. 

A total of 80 soil samples and 30 stream sediment samples were collected in the vicinity of known mineralization and analyzed for 36 elements in four size fractions. Orientation results indicate that soil samples should be collected from the near-surface soil horizon on a 100 by 200 m grid pattern, and sieved to the coarse, -8+35 mesh fraction prior to analysis. Stream sediment samples should be collected at a sample density of approximately 1 sample per 1 km and sieved to the fine, -150 mesh fraction. As expected, copper and molybdenum show the strongest response to copper-molybdenum mineralization at both Pico Prieto and Venado in addition, the following elements are also associated with mineralization at Tameapa Au, Ag, Pb, Zn, V, W, Ni, As, Sb, Bi, Se, Sr, and Ba. 

Fig. 1. Partitioning of Copper Near-surface B Soil Horizon (-8+35 fraction shown).

Due to the various health risks of different element species, there are a multitude of applications for natural water samples in this field (e.g., Cr and Sb speciation or Br and I determination).19 The investigation of heavy metal complexes with humic substances by isotope dilution SEC-ICP-MS has been described, for example, by McSheehy and Mester.20 Copper, zinc and molybdenum were found to form complexes with similar size fractions of humic substances in seepage water samples from soils. Sturgeon s group proposed the use of solid phase microextraction (SPME)... 

R.O. Kadara, J.D. Newman and I.E. Tothill, Stripping chronopotentio-metric detection of copper using screen-printed three-electrode system— application to acetic-acid bioavailable fraction from soil samples, Anal. Chim. Acta, 493 (2003) 95-104. 

C.M. Preston, S.P. Mathur and B.S. Rauthan, The distribution of copper, amino compounds, and humus fractions in organic soils of different copper content, Soil Sci. 131 (1981) 344-352. 

McLaren and Crawford (1973) studied the fractionation of soil copper and proposed that it could occur in soils in several forms, namely ... 

Fig. 1-3. Copper and zinc concentrations in soil chemical fractions (data from Shuman, 1985).

The total content of the major elements in soil is of little practical significance since only a tiny, soluble fraction is available for absorption by plant roots (West, 1981 Tinker, 1986). To some extent this is less true for trace elements and micronutrients where for example, analyses of total copper or zinc can be used to assess the likelihood of plant deficiencies or toxicities. Nonetheless, for an element to be bioavailable it has to be relatively soluble. 

Figure 9.5 Copper and nickel distribution among BCR sequentially extracted fractions in Sudbury soils around the Copper Cliff smelter. (HOAc = acetic acid-extractable red = reducible oxi = oxidisable res = residual) (from Adamo ft a ., 1996).

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