Du Bin, Ding Zhi-jun, Guo Lei, Wang Pu-hong, Li Zhi-jun, Yu Jian-hua
Guang Pu Xue Yu Guang Pu Fen Xi. 2015 Feb;35(2):470-3.
A novel naphthalimide derivatives N-hexyl-4-benzylamino-naphthalimide(HBN) was synthesized from 4-bromo-1, 8-naphthalic anhydride, and the structure was characterized by NMR and MS. Spectral properties of HBN for recognition of Fe3+ were investigated by fluorescence spectrum. In a certain range of Fe3+ from 4 x 10(-7) to 1 x 10(-2) mol x L(-1), the fluorescence intensity of HBN significantly reduced with increasing concentration of Fe3+ in ethanol/water (1:1, volume ratio). The equation of linear regression was F0/F=623.253 2c(Fe3+) + 0.9642 (R2 = 0.9963). Moreover, no obvious interference with the detection of the Fe3+ ion was observed in the presence of the common metal ions such as Ca2+, Na+, CU2+, Zn2+, Pb2+, Co2+, Ni2+, Mn2+ and Fe2+, which indicated that HBN displayed excellent selectivity and high sensitivity for the detection of Fe3+.
以4-溴-1,8-萘二甲酸酐为原料合成了一种新型萘二甲酰亚胺衍生物N-己基-4-苄基氨基萘二甲酰亚胺（HBN），并通过核磁共振和质谱对其结构进行了表征。采用荧光光谱研究了HBN识别Fe3+的光谱性质。在乙醇/水（体积比1:1）中，当Fe3+浓度在4×10(-7)至1×10(-2)mol·L(-1)的一定范围内时，HBN的荧光强度随Fe3+浓度的增加而显著降低。线性回归方程为F0/F = 623.253 2c(Fe3+) + 0.9642（R2 = 0.9963）。此外，在Ca2+、Na+、Cu2+、Zn2+、Pb2+、Co2+、Ni2+、Mn2+和Fe2+等常见金属离子存在下，对Fe3+离子的检测没有明显干扰，这表明HBN对Fe3+的检测具有优异的选择性和高灵敏度。
