拉曼光谱数据库及信息查询系统

随着拉曼光谱议的不断发展,尤其是便携式拉曼光谱仪的普及,与其配套的各种拉曼数据库的建立是十分重要的。目前大多数实验室都依赖进口仪器及其相应的数据库。因此建立我国自己的拉曼数据库具有重要的意义。本文采用目前最先进的数据库软件平台,构建了大型拉曼光谱数据库。本数据库包括宝玉石及其填充物、原生矿物、毒品,农药,打印复印墨迹、化学药剂等数个子数据库,总计有数千条图谱及数据信息。可以通过中文名称、英文名称、化学式、特征峰等多种方式进行查询。系统具有智能化的信息查询模块,并且支持模糊查询。根据最强的三个特征峰值进行搜索,是其区别其他数据库的显著特点。在特征峰搜索模式中,通过依次输入拉曼图谱中的最强特征峰值,经过几次比对和确认可以显示出满足搜索条件的图谱,最终逼近真实结果。操作人员只需经过简单的培训,使用较低硬件配置的计算机,就能够在几秒钟内根据实际测得拉曼图谱,从数据库中查找出与其匹配的信息,从而快速准确的鉴定出其构成与或所属矿物。本数据库在功能上可以不断扩展,包含的数据信息可以不断扩充。该数据库可广泛应用于公安法学,宝玉石真伪,化学分析等各种物相鉴定领域。

The Database of Raman Spectrum and Information Search System

With the development of Raman spectrum equipment,especially with the popularization of portable Raman spectrum equipment.The database with these equipment becomes very important.Now most labs of China have to import Raman equipments and database form aboard.So it's very important to build our database which belong to China.We use advanced database software programmes to build The Raman spectrum databases.The databases have collected nearly five hundreds species of gems, minerals and filler, drugs, pesticide and so on. It includes thousands of different Raman spectrum and related information. Several index methods such as the chinese name, english name, chemical formula and other key words were used for searching, comparing and identifying of the measured or unknown iterms. It has intelligent program to support fuzzy search。In characteristic peaks search mode, One can enter the three most strong peaks to get the search result.It only cost several seconds to find out which information in the database is matched with the raman spectrum you have measured,The operator needn't be expert and the computer needn't be very expensive then you can identify the composition of the mineral and which species it belong to.The function of the database can be enhance,and the data information can be added into th database.The database can be used widely in jurisprudence,gems indentify,chemico-analytic etc.