Aluminum speciation

The aim of this manuscript is to examine the molecular structure of the IL as the ratio of Al/RMIM" was changed with and without HCl added. The working hypothesis is that the aluminum speciation determines the reactivity of the IL and this speciation depends upon the structure of RMIM. ... 

David, M. B., and C. T. Driscoll. 1984. Aluminum speciation and equilibria in soil solutions of a haplorthod in the Adirondack Mountains (New York USA). Geoderma 33 297-318. 

Weng, L., Temminghoff, E. J. M., and Van Riemsdijk, W. H. (2002). Aluminum speciation in natural waters measurement using Donnan membrane technique and modeling using NICA-Donnan. Water Res. 36, 4215-4226. 

Jardine, P. M., and Zelazny, L. W. (1986). Mononuclear and polynuclear aluminum speciation through differential kinetic reactions with ferron. Soil Sci. Soc. Am. J. 50, 895-900. 

Oral bioavailability of aluminum compounds appears to generally parallel water solubility, but current knowledge does not allow a straight extrapolation from solubility in water to bioavailability. Studies of aluminum speciation in the stomach and intestines, including mathematical modeling, would be useful because they could enable such an extrapolation by helping to resolve the critical role of speciation in making aluminum available to uptake mechanisms. 

Alvarez E, Perez A, Calvo R. 1993. Aluminum speciation in surface waters and soil solutions in areas of sulphide mineralization in Galicia (N.W. Spain). Sci Total Environ 133 17-37. 

Boudot J-P, Merlet D, Rouiller J, et al. 1994. Validation of an operational procedure for aluminum speciation in soil solutions and surface waters. Sci Total Environ 158 237-252. 

Clarke N, Danielsson L-G, Sparen A. 1994. Aluminum speciation Variations caused by the choice of analytical method and by sample storage. Water Air Soil Pollut 72 213-233. 

Dayde S, Filella M, Berthon G. 1990. Aluminum speciation studies in biological fluids. Part 3. Quantitative investigation of aluminum-phosphate complexes and assessment of their potential significance in vivo. J Inorg Biochem 38 241-259. 

Gardiner PE, Schierl R, Kreutzer K. 1987. Aluminum speciation in soil solutions as studied by size exclusion chromatography. Plant Soil 103 151-154. 

Goenaga X, Williams DJA. 1988. Aluminum speciation in surface waters from a Welsh upland area. Environ Pollut 52 131-149. 

Goenaga X, Williams DJA. 1990. Determination of aluminum speciation in acid waters. In Edwards RW et al, eds. Acid waters in Wales. Dordrecht, Netherlands Kluwer Academic Publishers, 189-201. 

Jones P. 1991. The investigation of aluminum speciation in natural and potable waters using short-column ion chromatography. Int J Environ Anal Chem 44 1-10. 

Lote CJ, Wood JA, Thewles A, et al. 1995. Renal fdtration and excretion of aluminum in the rat Dose-response relationships and effects of aluminum speciation. Hum Exp Toxicol 14 494-499. 

Tagirov B. and Schott J. (2001) Aluminum speciation in crustal fluids revisited. Geochim. Cosmochim. Acta 65, 3965-3992. 

Driscoll, C.T. et al. Effects of aluminum speciation in fish in dilute acidified waters. Nature, 284, 161-164, 1980. 

Desroches, S., Dayde, S., and Brethon, G. Aluminum speciation studies in biological fluids. Part 6. Quantitative investigation of aluminum(III)-tartrate complex equilibria and their potential implications for aluminum metabolism and toxicity. J. Inorg. Biochem., 81, 301-312, 2000. 

B. Mechanisms of Iron Uptake and Release Aluminum Speciation in Biology... 

Driscoll, C. T., J. P. Baker, J. J. Bisogni, and C. L. Schofield (1984), Aluminum Speciation and Equilibria in Dilute Acidic Surface Waters of the Adirondack Region of New York State, in O. R. Bricker, Ed., Acid Precipitation Geological Aspects, Butterworth, Boston. 

Relationship between proton input with acid rain and aluminum speciation in soils of Japanese Cedar ecosystems is considered in Box 2. 

Box 2. Aluminum speciation in Japanese Cedar ecosystems (Sato et al, 1998)... 

Bi S, An S, Tang W, Xue R, Wfn L and Liu F (2001b) Computer simulation of the distribution of aluminum speciation in soil solutions in equilibrium with the mineral phase imogolite. J Inorg Biochem 87 97-104. 

Pyrzynska K, Bulska E, Gucer S and Hulanicki A (1999) Aluminum speciation in natural waters. Chem Anal (Warsaw) 44 1-14. 

Singhal, A., and K.D. Keefer. 1994. A study of aluminum speciation in aluminum chloride solutions by small angle x-ray scattering and Al NMR. Journal of Materials Research 9(8) 1973-1983. ... 

Notwithstanding the above constrains, computational methods are useful for a first approximation for a speciation problem or to predict speciation changes caused by changes in a parameter of the environmental conditions. Published practical examples of speciation by using a computational approach are the aluminum speciation in serum and distribution of trace elements in fresh waters. 

Figure 4 Aluminum speciation by LC-ETAAS in diluted (1 +4) human serum. (Reprinted from Soldado Cabezuelo AB, Montes Bayon M, Blanco Gonzalez E, et al. (1998) Speciation of basal aluminium in human serum by fast protein liquid chromatography with inductively coupled plasma mass spectrometric detection. Analyst 123 865-869.)...

The aluminum speciation and precipitation equilibria play an important role both in its state in the soil solution (and soil acidity) and in the presence of aluminum minerals in soil environments hence, we will devote some discussion to this point. Al(III) in aqueous solution undergo the following hydrolysis reactions involving aqueous mononuclear species ... 

Aluminum speciation in zeolite synthesis mixtures containing triethanolamine and several other organic compounds has been investigated using Al NMR [28]. It was demonstrated that all aluminum in sodium aluminate solutions containing an excess of triethanolamine was present in complexed form, probably with tetrahedral symmetry. Virtually no tetrahydroxy aluminate ions were observed by NMR, even when the solution was heated to a typical reaction... 

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