Micro-Raman and Fluorescence Spectra of Several Agrochemicals
XIAO Yi-lin1, ZHANG Peng-xiang2*, QIAN Xiao-fan3
1. Department of Chemistry, Yunnan Normal University, Kunming 650092, China 2. IAMPE, Kunming University of Science and Technology, Kunming 650051, China 3. Department of Physics, Kunming University of Science and Technology, Kunming 650051, China
Abstract：Raman and fluorescence spectra from several agrochemicals were measured, which are sold for the use in vegetables, frutis and grains. Characteristic vibration Raman peaks from some of the agrochemicals were recorded, hence the spectra can be used for their identification. Other marketed agrochemicals demonstrated strong fluorescence under 514.5 nm excitation. It was found that the fluorescence spectra of the agrochemicals are very different. According to these results one can detect the trace amount of agrochemicals left on the surface of fruits, vegetables and grains in situ and conveniently.
[1] Shelton D R, Fayer R, Schmidt W F et al. Proc. ⅩⅦ International Conference on Raman Spectroscopy, Beijing, China, August, 2000. [2] QIAN Xiao-fan, XIAO Yi-lin, XU Cun-ying et al(钱晓凡，肖怡琳，徐存英等). Chinese Journal of Light Scattering(光散射学报)，2001，13： 59. [3] ZHAO Jin-tao, TAN Hong-lin, ZHANG Peng-xiang(赵金涛，谭红琳，张鹏翔). Journal of Yunnan University(云南大学学报)，1998，20： 179. [4] ZHANG Peng-xiang(张鹏翔). Physica(物理)，1987，16： 505. [5] Hayes W, Loudon R. Scattering of Light by Crystals. John Wiley and Sons, 1978. [6] ZHANG Peng-xiang, GUO Wei-li, LI Xiu-ying(张鹏翔，郭伟力，李秀英). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1987，7(3)： 1. [7] ZHAO Jin-tao, CHEN Da-peng, ZHANG Peng-xiang et al(赵金涛，陈大鹏，张鹏翔等). Spectroscopy and Spectral Analysis(光谱学与光谱分析)，1999，19(5)： 687.
