两种酱香型白酒轮次基酒及成品酒的三维荧光光谱研究

以茅台镇两家高知名度品牌公司轮次基酒和成品酒为研究对象，测定其三维荧光光谱。结果表明，不同轮次酱香型白酒和成品酒的三维荧光光谱的主荧光峰个数、波峰位置、最佳激发波长3个参数有着各异的表征，而同一种轮次白酒的三维荧光光谱的3个参数十分相近。成品酒主荧光峰位于波长430 nm附近，最佳激发波长在350 nm左右，其余荧光峰的位置基本一致，荧光强度位于同一个数量级；1～7轮次基酒的主荧光峰位于350～450 nm之间，最佳激发波长在300～350 nm之间，轮次基酒的荧光强度位于同一个数量级，同一轮次基酒的峰型具有相似性。研究结果可以准确地区分酱香型白酒的基酒轮次及成品酒，为白酒的品质检测提供了辅助途径。

Three-dimensional fluorescence spectrum of two kinds of Moutai-flavor basic batch distillates and Baijiu

Using Moutai-flavor basic batch distillates and Baijiu (Chinese liquor) from two well-known companies in Maotai town as research object, and their three-dimensional fluorescence spectra were determined. The results showed that the number of main fluorescence peaks, wave crest position, optimum excitation wavelength of three-dimensional fluorescence spectrum of different batch distillates and Baijiu had different characterization, and the three parameters of the fluorescence spectrum of the same batch Baijiu were very similar. The main fluorescence peak of Baijiu was around 430 nm, the optimal excitation wavelength was around 350 nm, the fluorescence peaks were consistent, and the fluorescence intensity was in the same magnitude. The main fluorescence peaks of 1-7 basic batch distillates were 350-450 nm, and the optimal excitation wavelength was 300-350 nm, the fluorescence intensity of basic batch distillates was in the same level of magnitude, the peak pattern of same batch distillates were similar. The results could accurately distinguish different basic batch distillates and Moutai-flavor Baijiu, which provided auxiliary way for Baijiu quality detection.