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以3,4,9,10-苝四甲酸二酐(PTTC)为原料,采用真空气相沉积-分子自组装法制备了有机纳米材料,通过扫描电镜、透射电镜、红外光谱、荧光光谱和差热分析表征所得产物。用吐温20增溶PTTC纳米材料,发现L-赖氨酸对该分散系的荧光具有较强的增敏作用,据此建立了L-赖氨酸的纳米荧光化学传感新方法。体系的荧光变化与赖氨酸浓度呈线性关系,线性范围为7.00×10-4~5.40×10-7mol/L,检出限为8.39×10-8mol/L。进一步研究发现,PTTC纳米结构使赖氨酸的循环伏安图电流差减小,有望据此制作赖氨酸纳米电化学传感器。
The organic nanomaterials were prepared by vacuum vapor deposition-molecular self-assembly method using 3,4,9,10-perylenetetracarboxylic dianhydride (PTTC) as raw material. Scanning electron microscopy, transmission electron microscopy, infrared spectroscopy, fluorescence spectroscopy and differential thermal analysis The product was analyzed and characterized. Using Tween 20 to solubilize PTTC nanomaterials, it was found that L-lysine had a strong sensitizing effect on the fluorescence of the dispersed system. Based on this, a new fluorescence sensing method for L-lysine was established. The linear relationship between the change of fluorescence and lysine concentration was 7.00 × 10-4 ~ 5.40 × 10-7mol / L with the detection limit of 8.39 × 10-8mol / L. Further study found that, PTTC nanostructures make lysine cyclic voltammetry current difference is reduced, is expected to produce lysine nano-electrochemical sensor accordingly.