Ogbuji L U, Batich C D
J Ultrastruct Res. 1985 Jan;90(1):1-8. doi: 10.1016/0889-1605(85)90112-0.
The investigation of the degree of interpenetration between the two component phases of whewellite kidney stones, the protein matrix and calcium oxalate monohydrate crystallites, is extended by a technique of microchemical analysis, employing X-ray photoelectron spectroscopy (XPS). The technique involves determining the surface elemental (hence chemical) composition of fractured whewellite stones. Comparison with the bulk composition of about 95% COM and 5% matrix yielded information on the fracture path, hence on the spatial distribution of the two phases. The results showed large increases in matrix signal upon fracture, confirming that the minor phase, matrix, which is expected to provide an easy path for fracture, pervades the structure down to the level of individual crystallites.
运用X射线光电子能谱（XPS）这一微化学分析技术，对水草酸钙肾结石的两个组成相——蛋白质基质和一水合草酸钙微晶之间的相互渗透程度展开了研究。该技术包括测定破碎的水草酸钙结石的表面元素（即化学）组成。将其与约95%的一水合草酸钙（COM）和5%的基质的整体组成进行比较，得出了有关断裂路径的信息，进而了解了这两个相的空间分布。结果显示，断裂后基质信号大幅增加，证实了作为预期能为断裂提供便捷路径的次要相——基质，贯穿整个结构直至单个微晶层面。
