饮用水激光拉曼光谱的比较与分析

为了对我国目前饮用水的质量进行有效检测,对市面上几种常用品牌的饮用水以及实验室提供的蒸馏水等样品做了测量和计算.运用激光拉曼光谱的分析方法,测量了它们的激光拉曼光谱.同时,通过测量计算了样品在对称伸缩振动处拉曼谱的退偏度.结果表明,在水样品的对称伸缩振动处,其拉曼谱的相对强度大小和退偏度的大小有着相同的规律.对结果进行比较和分析后得出了如下结论:可以从拉曼光谱特征峰相对强度的大小和同一特征峰下退偏度的大小两方面来判断饮用水中矿物质含量的相对多少.为鉴定饮用水的质量提供了新的有效途径.

Comparison and Analysis of Laser Raman Spectra of Common Drinking Water

In order to detect the drinking water quality in our country at the present time effectively,several brand brands of drinking water on the market and the distilled water that laboratory offered were measured and calculated.The laser Raman spectra of samples were measured,while the sample's degree of degeneracy polarization at the symmetric stretching peak was calculated from the measurements.Results indicate that the relative intensity of the Raman spectrum and the degree of degeneracy polarization follow the same rule.Through comparison and analysis of the results of measurement and calculation,it is concluded that we can judge the relative content of mineral substance of drinking water by comparing the strengths of laser Raman spectrum characteristic peak and the magnitudes of the sample's degree of degeneracy polarization at the same characteristic peak.This conclusion will provide us a new and effective path to assaying the quality of drinking water.