Humic substances aquatic

Curtis PJ. 1998. Climatic and hydrologic control of DOM concentration and quality in lakes. In Hessen DO, Tranvik LJ, editors. Aquatic humic substances ecology and biogeochemistry. Berlin, Germany Springer-Verlag, p. 93-105. [Pg.115]

Ferrara G, Loffredo E, Senesi N (2001) Aquatic humic substances inhibit clasto-genic events in germinating seeds of herbaceous plants. J Agric Food Chem 49 1652-1657... [Pg.300]

Watt BE, Clark NWE, Hayes MHB, Chipman JK, Skjemstad JO, Swift RS (1996) Aquatic humic substances from Pristine watersheds chemistry and postchlorination mutagenicity. In Clapp CE, Hayes MHB, Senesi N, Griffith SM (eds) Humic substances and organic matter in soil and water environments characterization, transformations and interactions. Proceedings of the 7th international conference IHSS, St. Augustine, Trinidad and Tobago, pp 389-390... [Pg.301]

Vigneault, B., Percot, A., Lafleur, M. and Campbell, P. G. C. (2000). Permeability changes in model and phytoplankton membranes in the presence of aquatic humic substances, Environ. Sci. Technol., 34, 3907-3913. [Pg.267]

Melcer ME, Zalewski MS, Hassett JP (1989) In Suffet IH, MacCarthy P (eds) Aquatic humic substances Influence on fate and treatment of pollutants. Advances in Chemistry Series, ACS, Washington DC, vol 219, p 173... [Pg.160]

Zhang X, Minear RA (2006) Formation, adsorption and separation of high molecular weight disinfection byproducts resulting from chlorination of aquatic humic substances. Water Res 40(2) 221-230... [Pg.131]

Chin, Y.-P., G. Aiken, and E. O Loughlin, Molecular weight, polydispersity, and spectroscopic properties of aquatic humic substances , Environ. Sci. Technol., 28, 1853-1858 (1994). [Pg.1219]

Hoigne, J., B. C. Faust, W. R. Haar, F. E. Scully, Jr., and R. G. Zepp, Aquatic humic substances as sources and sinks of photochemically produced transient reactants . In Aquatic Humic Substances Influence on Fate and Treatment of Pollutants, I. H. Suffet and P. MacCarthy, Eds., Advances in Chemistry Series 219, American Chemical Society, Washington, DC, 1989, pp. 363-381. [Pg.1229]

Tipping, E., The adsorption of aquatic humic substances by iron oxides , Geochim. Cosmochim Acta, 45,191-199 (1981). [Pg.1249]

FLUORESCENCE Spectra. Fluorescence data are presented in Table V. All samples derived from drinking water gave an emission maximum between 417 and 430 nm, whereas the excitation maximum ranged between 346 and 365 nm. Miami IB showed an excitation maximum similar to the CFH samples, but the maximum was quite different from the one exhibited by the aquatic humic substances from the Satilla River. The emission maximum of these samples (Table V), however, was very similar. [Pg.194]

An extraction method for isolating humic substances from water by using XAD-8 has been proposed by Thurman and Malcolm (9) (see box). Humic substances in natural waters represent almost the entire hydrophobic acid fraction. This method has been used to isolate 4.25 g of humic substances from 24,500 L of ground water from the Fox-hills-Laramie aquifer and to obtain 500 g of humic material from 10,400 L of the Suwannee River (Table II). The sample from the Suwannee River was collected as a reference sample of aquatic humic substances by the International Humic Substances Society. In both of the examples cited, a fc cutoff of 100 was used. [Pg.299]

Extraction Process Using XAD-8 To Concentrate Aquatic Humic Substances ... [Pg.299]

Step 2. Pass acidified sample through column of XAD-8 aquatic humic substances adsorb to resin. [Pg.299]

A conceptual DOM pie diagram (Fig. 1) represents the chemical view of the DOM pool of a typical riverine sample. The specific chemical classes or wedges can be separated based upon several different operational fractionation schemes (Thurman and Malcolm, 1981 Aiken, 1985 Aiken et al., 1992 Benner, 1998). For typical natural waters, the dominant fraction comprising DOM is fulvic acid, which is defined as the yellow, moderate molecular weight organic acid fraction of aquatic humic substances that is soluble at all pH values (Aiken et al., 1985). In surface waters receiving... [Pg.72]

Aiken, G. R. 1985. Isolation and concentration techniques for aquatic humic substances. In Humic Substances in Soil, Sediment and Water Geochemistry, Isolation, and Characterization (G. R. Aiken, D. M. McKnight, R. L. Wershaw, and P. MacCarthy, Eds.), pp. 363—385. [Pg.93]

Benner, R. H. 1998. Cycling of dissolved organic matter in the ocean. In Aquatic Humic Substances (D. O. Hessen and L. J. Tranvik, Eds.), pp. 317—331. Springer-Verlag, Berlin. [Pg.93]

Ertel, J. R., J. I. Hedges, and E. M. Perdue. 1984. Lignin signature of aquatic humic substances. Science 223 485-487. [Pg.93]

McKnight, D. M., E. M. Thurman, R. L. Wershaw, and H. Hemond. 1985. Biogeochemistry of aquatic humic substances in Thoreau s Bog, Concord, Massachusetts. Ecology 66 1339-1352. [Pg.94]

Thurman, E. M., and R. I. Malcolm. 1981. Preparative isolation of aquatic humic substances. Environmental Science Technology 15 463-466. [Pg.95]

Carbohydrate Aquatic humic substances Jahnel et al. (1998a, b)... [Pg.100]

Amino acid Aquatic humic substances Jahnel and Frimmel (1996)... [Pg.100]

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