A Study On Vitamin PP By Surface Enhanced Raman Scattering

Vitamin is a kind of nutriment which is necessary for human body to maintain normal physiological function. Because of its indispensability to the body, vitamin has been an interesting research object in medical science, electrochemistry and inorganic chemistry. Nicotinamide and Nicotinic acid are called vitamin PP by a joint name and they are one kind of the stabilizationest vitamin. It will induce many kinds of illness by lack of vitamin PP. There are many literatures on the study of vitamin PP by means of various spectroscopic and photochemical methods including UV-vis absorption, infrared, and gas chromatography, high-performance liquid chromatography. But there is no report about the adsorption features of vitamin PP up to date.We could do research in druggery detection, trace analysis and vibrational spectrum investigation of molecules through the study of Raman spectrum. Surface-Enhanced Raman Scattering (SERS) is a new technique of Raman spectrum which can greatly enhance Raman intensity. This technique has reached the level of monolayer detection. Now SERS is widely used as a highly powerful analytical tool to investigate molecular structure and interaction between molecules and metal surfaces resulting in strongly increased Raman signals from molecules which have been attached to nanometer sized metallic structures. If the structural and related information of vitamin is clear, we can do research in vitamin absorption process in human body. So the purpose of our research is to analyze and detect the role of vitamin in human body through the study of Raman spectrum.This paper includes three sections as following: In the first section, we gave an introduction of the principle and application of Raman spectrum, and the status of SERS...