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000000497 084__ $$2WoS$$aChemistry, Physical
000000497 1001_ $$0P:(DE-Juel1)VDB9230$$aSéquaris, J.-M.$$b0$$uFZJ
000000497 245__ $$aPhysicochemical characterization of potential colloids from agricultural topsoils
000000497 260__ $$aAmsterdam [u.a.]$$bElsevier Science$$c2003
000000497 300__ $$a93 - 99
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000000497 440_0 $$01360$$aColloids and Surfaces A:Physicochemical and Engineering Aspects$$v217$$x0927-7757
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000000497 520__ $$aA method based on sedimentation and centrifugation steps has been developed to fractionate agricultural topsoils after suspension in water. A high release of potential colloids has been observed with low Ca2+ concentration under soil solid-to-water weight ratio conditions higher than 1/3. The colloidal stability is characterized in terms of particle size and electrokinetic properties. There is no systematic effect of the colloid phase organic carbon content varying from 2 to 5% on the critical coagulation concentration (CCC) and zeta potential results. Consequently, the observed CCC was tested by the Derjaguin-Landau-Verwey-Overbeeck theory by taking into account physicochemical properties of the colloid phase mineral content. (C) 2002 Elsevier Science B.V. All rights reserved.
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000000497 65320 $$2Author$$aagricultural topsoils
000000497 65320 $$2Author$$asoil fractionation
000000497 65320 $$2Author$$apotential colloid
000000497 65320 $$2Author$$acritical coagulation concentration
000000497 65320 $$2Author$$azeta potential
000000497 65320 $$2Author$$acolloidal stability
000000497 7001_ $$0P:(DE-Juel1)129496$$aLewandowski, H.$$b1$$uFZJ
000000497 773__ $$0PERI:(DE-600)1500517-3$$a10.1016/S0927-7757(02)00563-0$$gVol. 217, p. 93 - 99$$p93 - 99$$q217<93 - 99$$tColloids and surfaces / A$$v217$$x0927-7757$$y2003
000000497 8567_ $$uhttp://dx.doi.org/10.1016/S0927-7757(02)00563-0
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