慢慢冲刷
发表于 2025-3-23 11:07:49
Public Administration, State and Societystrongly on the chemical forms (species) in which the dissolved metals exist in the respective natural water type (Stumm and Morgan, 1981). The resulting tendencies and potentialities of a heavy metal to accumulate at suspended particles has e.g. a decisive influence on the concentration regulation
陪审团
发表于 2025-3-23 17:19:41
https://doi.org/10.1057/9780230590922ribution the result of which are various geochemical pathways. Electrochemical methods are very valuable for trace metal speciation. However, their application must be performed cautiously because of very specific sensitivity of the electrode reaction to the different groups of heavy metal species.
独白
发表于 2025-3-23 19:47:14
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军械库
发表于 2025-3-24 01:07:38
Studies in Central and Eastern Europesent in natural waters as ions or labile (mostly inorganic) complexes, nonlabile (mostly organic) complexes or chelated forms and adsorbed or incorporated in colloidal particles. They can be characterized by different degrees of hydration and oxydation states. In the natural environment all these di
繁重
发表于 2025-3-24 05:41:25
Studies in Central and Eastern Europe since the appearance of papers in which computers were used to model the chemistry of water-mineral reactions (Helgeson, et al., 1969, 1970). The use of computers to solve chemical equilibrium problems for aqueous systems has expanded enormously and “chemical modeling” is now a common phrase descri
宪法没有
发表于 2025-3-24 07:32:56
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intrude
发表于 2025-3-24 13:03:49
State and Statehood in the Global Southideration of the cumulative uncertainties inherent in the process of constructing chemical models. In this note we examine the effect of uncertainties in trace metal complexation constants and pH on the predicted fraction of free metal ion. Only mononuclear inorganic complexes are included. Analytic
矛盾
发表于 2025-3-24 18:08:09
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粗鄙的人
发表于 2025-3-24 20:58:46
Latin America: The Refounding of the State is added to a natural water it is distributed between several physico-chemical forms, which may have quite different environmental effects (Florence & Batley 1980; Hart 1982a). For example it is now generally accepted that the free uncomplexed forms of trace metals such as copper, cadmium and zinc,
来自于
发表于 2025-3-25 02:53:44
Measurement of Copper Complexation by Naturally Occurring Ligandstal speciation is required when assessing biological impact because bioavailability and toxicity seem to be directly related to the concentration of the metal ion species only (Sunda and Guillard, 1976; Anderson and Morel, 1978; van den Berg, 1979; Allen et al., 1980).