中文摘要：

测定了当前市场上比较流行的洋河蓝色经典系列白酒梦之蓝,天之蓝和海之蓝的吸收光谱及三维荧光光谱。吸收光谱表明,三种酒在212和275 nm有较强烈的吸收,但吸收强度不同;荧光光谱表明,在245 nm的近紫外光激发下,三种酒在310,420和610 nm附近都有明显的荧光发射,但强度各自不同;当激发波长增大为310和345 nm时,依然有两个荧光峰产生,强度差别依然很大。对5个典型荧光峰的产生机理进行了分析,给出了合理的解释。研究结果可以快速准确地区分三种洋河酒及其品质,为白酒的品质检测和品牌识别提供了一种新的途径。

英文摘要：

In the present paper,the liquors of Hai zhi lan,Tian zhi lan and Meng zhi lan were selected as the objects,and by using equipment of UV-240 ultra-violet spectrophotometer and Sp-2558 multifunctional spectrometer,their absorption and three-dimensional fluorescence spectra induced by UV light were studied respectively.The maximum absorption wavelengths for all of them were located at 212 and 275 nm,but each has different intensity at 212 nm.Moreover,their three-dimensional fluorescence spectra were detected when they were induced by suitable UV-light,The results show that each of the spirits can emit three strong fluorescence lines at 310,420 and 610 nm respectively when excited by UV-light at 245 nm.Furthermore,we found each of them can emit another two strong fluorescence lines when they absorb the UV-light at 310 and 345 nm.The authors found that they all have five different fluorescence peaks,but each has different intensity.According to the experimental phenomenon,through a careful analysis,it is pointed out that the differences of the five fluorescence peaks basically reflect the aging process and different content of the liquor. The three different brand yanghe classical liquors were identified fast and accurately.The paper also offered a kind of way to determine the quality and brand of white spirit.