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Perdue E. M., Reuter J. H., and Ghosal M. (1980) The operational nature of acidic functional group analyses and its impact on mathematical descriptions of acid¨Cbase equilibria in humic substances. Geochim. Cosmochim. Acta 44, 1841¨C1851. Perdue E. M. (1985) Acidic functional groups of humic substances. In Humic Substances in Soil, Sediment, and Water: Geochemistry, Isolation, and Characterization (eds. G. R. Aiken, D. M. McKnight, R. L. Wershaw, and P. MacCarthy). Wiley, New York, pp. 493¨C526. Ritchie J. D. and Perdue E. M. (2003) Proton binding study of standard and reference fulvic acids, humic acids, and natural organic matter. Geochim. Cosmochim. Acta 67, 85¨C96. ÆäÖÐÊÇÁ½ÖÖ·½·¨ ÎÒÖ»ÊÇ¿´µ½¹ý ²¢Ã»ÓÐ×ÐϸÔĶÁÆäÖеķ½·¨ ²»¹ýºÃÏñ·ÓôÇ»ùÒ²±»ÕâÖÖ·½·¨¹éΪ×ÜËá¶È |
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