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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 and wheat Sui Ning is widely used in the prevention and treatment of vegetable and fruit diseases benzimidazole fungicides, the two fluorescence spectra overlap seriously, the conventional fluorescence method is difficult to achieve simultaneous direct quantitative analysis. In this paper, the three-dimensional excitation-emitting fluorescence technique was used directly with the parallel factor analysis (PARAFAC) algorithm and the alternating trilinear decomposition (ATLD) algorithm, respectively, for the quantitative analysis of residual content of thiabendazole and maifonin in red wine. When the main component of the system was 3, the average recoveries of thiabendazole and wheat bran in the prediction samples obtained by ATLD and PARAFAC were (105.8 ± 2.7)%, (102.1 ± 10.1)% and (102.4 ± 7.6)% respectively, (103.1 ± 9.5)%. The method can be simple, rapid, economical and simultaneous analysis of thiabendazole and wheat spike Ning content of red wine.