Surface analysis of filter papers used in room-temperature phosphorimetry.
Surface analysis of filter papers used in room-temperature phosphorimetry.
复制标题
室温磷光测定中使用的滤纸的表面分析。
DOI：
10.1021/ac00121a029
复制
发表时间：
1986
影响因子：
7.4
通讯作者：
Winefordner,JD
中科院分区：
文献类型：
--
作者：
Andino,MM;Kosinski,MA;Winefordner,JD
室温磷光通常是在有重原子增强剂的情况下，从放置在固体衬底上的化合物中观察到的。为了更好地了解表面过程，在将发光化合物和/或重原子溶液点染到纸张表面之前和之后，对Whatman 1号滤纸表面进行了x射线光电子能谱研究。重原子如碘和铊，以及化合物3,5 - dlodotyroslne、5-hydroxytryptophan、carviyl和bls （8-quinollnate）铂（II）被用作探针。观察到的表面上各类碳原子的化学位移和分数面积（由计算机曲线拟合确定）与纤维的分子结构基本一致。在处理后的纸张表面观察到不同的光电子峰，并确定了元素比。结合能和元素比的变化提供了有关表面组成变化的信息。
Room-temperature phosphorescence Is observed from com-pounds placed onto a solid substrate, usually In the presence of a heavy-atom enhancer. In order to better understand the surface processes, X-ray photoelectron spectroscopy studies of the surface of Whatman No. 1 filter paper are performed before and after the spotting of a luminescent compound and/or heavy-atom solution onto the surface of the paper.Heavy atoms such as Iodine andthallium, and the compounds 3, 5-dllodotyroslne, 5-hydroxytryptophan, carbaryl, and bls (8-quinollnate) platlnum (II) are used as probes. The observed chemical shifts and fractional areas of each class of carbon atom on the surface (as determined from computer curve fitting) are In reasonable accord with the molecular structure of the fiber. The different photoelectron peaks observed on the surface of the treated papers are Identified and the elemental ratios determined. Variations in the binding energies and the elemental ratios provide Information concerning changes in the surface composition.