苯的激光拉曼光谱检测研究

Laser-Raman spectrum for detecting benzene

为了对苯的质量分数进行快速准确的检测,采用拉曼光谱法进行检测。对苯的激光拉曼光谱进行了理论分析,进行了标准样品和不同质量分数苯样品的系列拉曼光谱实验。结果表明:苯的拉曼光谱特征峰值与苯的含量成正比,将最强的561.4 nm处的峰值代入线性回归公式,即可得到苯的质量分数,检出限达0.3%。得到一种新的苯质量分数检测方法。

A new method is proposed for detecting the concentration of benzene quickly and accurately with Raman spectrum. Based on the theoretical analysis of benzene ＇ s Raman spectrum, the experiments proved that the Raman spectrum peak value of benzene was proportional to the concentration of benzene, which could be obtained by substituting the strongest peak value of 561.4nm into the linear regression equation, with the detection limit of 0.3%.