论文部分内容阅读
本文提出了一种全新的基于整体柱材料的SERS检测方法。通过将探针分子和银溶胶混合后滴加在整体柱上,我们可以得到浓度低至10-18 mol/L的罗丹明6G(R6G)及10-16 mol/L的对巯基苯胺(PATP)的SERS信号。利用原子力显微镜(AFM)和扫描电镜(SEM)对银溶胶及整体柱材料进行了表征。通过实验结果可以初步推测,整体柱材料的表面形态和孔结构可以促进银溶胶产生“热点”。
In this paper, a new SERS detection method based on monolithic column material is proposed. By mixing the probe molecules with the silver sol and dropping them on the monolithic column, we can get rhodamine 6G (R6G) and 10-16 mol / L p-aminothiophenol (PATP) in concentrations as low as 10-18 mol / SERS signal. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) silver sol and monolithic materials were characterized. According to the experimental results, it can be preliminarily presumed that the surface morphology and pore structure of the monolithic column material can promote the silver sol to produce “hot spot”.