论文部分内容阅读
The simple approach to acquire the fluorescence spectra of vitamin b1, b2 and b6 is proposed by direct illumination on solid pow-der sample. The experimentally acquired fluorescence spectra are in with the previous measurements on soluble samples. The fluorescence spectra for a mixture of vitamins b1, b2 and b6 with dif-ferent concentrations have been investigated, and the fluorescence mechanism is explained on the basis of molecular structure. Possible reasons of the blue-shift of the fluorescence peak and enhancement of the peak power are explained as well. The advantages of sdid powder method is analyzed and discussed.