ADSORPTION DESORPTION OF PCBS ON HUDSON RIVER CLAY

（NIEHS Superfund ESO 4913）Carpenter）。 的 河泥对多氯联苯的吸附 取决于粘土颗粒的大小、颗粒的类型 （元素分析）和颗粒的几何形状。 HVEM和IVEM 用于测定粘土颗粒尺寸、元素组成、 组成和形状。 我们希望能够找到 PCB吸附在颗粒上的部位未来。 使用IVEM， 能量色散X射线显微分析谱和数字显微照片 是从含有多氯联苯的圣劳伦斯河粘土中提取的。 Cryo-EM用于保留挥发性PCB。 然后使用HVEM 为了提供由所述分析仪分析的较大颗粒的改进图像， IVEM和分析区域的宽视野概述。 结果 在1998年8月的显微镜和显微分析上发表。 蒂沃尔， W.F.，凯西，AC，Liu，X-M，Bush，B. 1998年《约束力》 多氯联苯的沉积物。 显微镜和微量分析 1994年4月，增刊2（Proc. Microscopy and Microanalysis '98），G. Bailey等人，Springer，纽约，pp. 498-499.

(Supported by NIEHS Superfund ESO4913 to D. Carpenter). The adsorption of polychlorinated biphenyls (PCB's) onto river clay depends upon the size of the clay particle, the type of particles (elemental analysis) and the geometry of the particles. HVEM and IVEM were used to determine the clay particle size, the elemental composition and the shape. We hope to be able to locate the actual PCB adsorption sites on the particles in the future. Using the IVEM, energy-dispersive X-ray microanalysis spectra and digital micrographs were taken of particles of St. Lawrence river clay containing PCB's. Cryo-EM was used to retain the volatile PCB's. Then the HVEM was used to provide improved images of the larger particles analyzed by the IVEM, and wide-field overviews of the analysis areas. The results were presented at Microscopy and Microanalysis '98 in August. Tivol, W.F., Casey, A.C., Liu, X-M, Bush, B. (1998) Binding of polychlorinated biphenyls to sediment. Microscopy and Microanalysis Vol 4, suppl. 2 (Proc. Microscopy and Microanalysis '98) Ed. G. Bailey, et al., Springer , New York, pp. 498-499.