Synchronous Fluorescence Spectroscopic Technique for the Simultaneous and Rapid Determination of Polycyclic Aromatic Hydrocarbons in Vegetable Oils and the Preliminary Study of Its Coupling with Surface Plasmon-Coupled Emission

同步荧光技术（synchronousfluorescencespectrometry，SFS）是一种基于激发、发射波长仪彼此间保持一定的关系进行同时扫描而获得荧光光谱的一种荧光分析技术。因其具有简化光谱、减少光散射、提高选择性和灵敏度等优势，已逐渐发展成为多组分体系快速检测的有力工具。表面等离子体耦合发射荧光（surfaceplasmon-coupledemission，SPCE）是利用金属近场作用范围内的受激分子与金属表面等离子体之间的耦合作用而建立起来的一种新型的界面增强技术。凭借其定向发射性、偏振性、波长分辨性、能排除远场背景信号干扰等优势，SPCE检测方法的研究和应用得到了迅猛发展。本...Synchronous fluorescence spectrometry (SFS) is a fluorescence analysis technique based on the definite relation between the excitation and emission wavelengths in the process of simultaneous scanning to obtain the fluorescence spectrum. Owing to its advantages of simplified spectrum, less light scattering, high selective, and sensitive, SFS has been gradually developed to a powerful tool for the r...学位：理学硕士院系专业：化学化工学院_分析化学学号：2052013115156

Three-Dimensional Fluorescence Technique Coupled with Chemometric Second-Order Calibration Method for Simultaneous Detection of Thiabendazole and Fuberidazole in Red Wine

噻菌灵和麦穗宁是被广泛应用于预防治疗蔬菜水果病害的苯并咪唑类杀菌剂,二者的荧光光谱重叠严重,常规的荧光方法难以实现同时直接定量分析。本文将激发发射三维荧光技术分别与平行因子分析(PArAfAC)算法和交替三线性分解(ATld)算法相结合直接用于定量分析红葡萄酒中噻菌灵和麦穗宁的残留含量。当体系主成分数为3时,ATld和PArAfAC获得预测样品中噻菌灵和麦穗宁的平均回收率分别为(105.8±2.7)%、(102.1±10.1)%和(102.4±7.6)%、(103.1±9.5)%。本方法可简单、快速、经济、同时地分析红葡萄酒中噻菌灵和麦穗宁含量。Thiabendazole(TBZ) and fuberidazole(FBZ) are a class of benzimidazole fungicides and have been widely applied to protect vegetables and fruits.Conventional fl uorescence spectrum analysis method can hardly simultaneously detect TBZ and FBZ due to their serious spectral overlap.The simultaneous determination of TBZ and FBZ in red wine by excitation-emission fluorescence matrices(EEMs) combined with parallel factor analysis(PARAFAC) and alternating tri-linear decomposition(ATLD) was developed in this study.The prediction recoveries of TBZ and FBZ in the prediction set by PARAFAC and ATLD were(105.8±2.7)%,(102.1±10.1)% and(102.4±7.6)%,(103.1±9.5)% respectively,when the principal component number was 3.The method is simple,fast,low-cost,and suitable for the simultaneous determination of TBZ and FBZ in red wine.国家自然科学基金项目(21127005;21375111); 福建省科技重点项目(2009Y0046