U.S.-Fed. Rep. of Germany Coop. Research: Fourier Transform Infrared (FTIR) Spectral Studies of Competitive Heavy Metal Binding Reactions with Estuarine and Groundwater Humic Acids

该奖项将支持一个为期两年的合作研究项目， James J. Alberts博士，高级研究专家兼主任， 格鲁吉亚萨佩洛岛格鲁吉亚大学海洋研究所，以及 Zdenek K.博士菲利普，水，地面和空气卫生研究所， 德国联邦共和国兰根联邦卫生办公室。 的 科学家们正在合作进行一项研究， 有毒重金属铜、镉、铅分离出腐殖酸 从美国的盐沼河口和 德国。 将使用选择性离子进行结合研究 电极技术，在已知的受控pH的水生基质中， 离子强度，并将检查这些的最大结合能力 这些重金属的腐殖物质。 此外， 常见环境阳离子的竞争性结合将是 研究了 傅里叶变换红外（FTIR）光谱分析将 在未复合的腐殖物质上进行， 在与元素络合之后的材料， 关于金属结合机制的信息。 重金属从许多商业场所进入环境 这些过程继续对大部分人构成潜在的健康危害， 工业化国家的人口。 这些人的命运 环境中的元素通常由化学反应控制， 金属与天然存在的有机化合物（腐殖物质）， 这可能会导致水中金属的流动性更大， 环境. 其中两个极端重要的环境是 地下水，因为它们被广泛用作饮用水源， 水和沿海河口，这往往支持大型动植物 人口众多，具有商业和娱乐价值。知识 在这些系统中，重金属与腐殖物质的相互作用是 这对我们理解基本的环境过程至关重要， 重金属 在这里进行的研究将涉及 两个实验室采用最先进的分析技术， 这些领域的研究历史。 通过分享他们的互补性 专业知识和实验设施，合作的科学家希望 在各自的研究项目中取得重大进展。 的 Deutsche Forschungsgemeinschaft正在提供德国的对应支持 本项目

This award will support a two-year cooperative research project between Dr. James J. Alberts, Senior Research Ecologist and Director, The University of Georgia Marine Institute, Sapelo Island, Georgia, and Dr.Zdenek K. Filip, Institute for Water-, Ground-, and Air Hygiene, Federal Health Office, Langen, Federal Republic of Germany. The scientists are collaborating in a study of the binding of ions of the toxic heavy metals copper, cadmium, and lead to humic acids isolated from salt marsh estuaries in the United States and from groundwaters in Germany. The binding studies will be conducted with selective ion electrode techniques, in known aquatic matrices of controlled pH and ionic strength, and will examine the maximum binding capacities of these humic materials for these heavy metals. In addition, the effect of competitive binding by common environmental cations will be investigated. Fourier Transform Infrared (FTIR) spectral analyses will be conducted on the uncomplexed humic materials and on the same materials after complexation to the elements in an effort to obtain information regarding the mechanism of binding by the metals. Heavy metals introduced into the environment from many commercial processes continue to pose a potential health hazard to a large portion of the population in industrialized countries. The fate of these elements in the environment is often controlled by chemical reactions of the metals with naturally occurring organic compounds (humic matter), which may lead to a greater mobility of the metals in aquatic environments. Two such environments which are of extreme importance are groundwaters, because of their widespread use as a source of drinking water, and coastal estuaries, which often support large animal and plant populations and have both commercial and recreational value. Knowledge of the interaction of heavy metals with humic matter in these systems is critical to our understanding of basic environmental processes involving heavy metals. The studies to be carried out here will involve state-of-the-art analytical techniques in two laboratories with long histories of research in these areas. By sharing their complementary expertise and experimental facilities, the cooperating scientists expect to make significant advances in their individual research programs. The Deutsche Forschungsgemeinschaft is providing German counterpart support for the project.