摘要
基于5,5′-亚甲基双水杨醛和3-氯-2-肼基吡啶,合成了一种双席夫碱荧光探针L,并进行了结构表征。在DMF溶液中,探针可实现对Al^(3+)的“turn-on”可视化检测,并表现出较高的灵敏性和选择性。荧光滴定实验中,Al^(3+)浓度在50~300μmol·L^(-1)内,与荧光强度呈良好线性关系,计算出检测限为9.4×10^(-7)mol·L^(-1)。Job's plot曲线及高分辨质谱数据表明,探针与Al^(3+)结合化学剂量比为2∶1。将该探针应用于市售粉丝Al^(3+)检测中,加标回收率94.4~101.1%,相对标准偏差为3.08%,得到较好实验效果。
Based on 5,5′-methylenebis(salicylaldehyde)and 3-chloro-2-hydrazie nopyridine,a bis(salicylaldehyde)Schiff base L was synthesized and characterized.The Schiff base could detect Al^(3+)as a“turn-on”visual fluorescent probe in DMF medium with high sensitivity and selectivity.The concentration of Al^(3+)had a good linear relationship with the fluorescence intensity in the range of 50~300μmol·L^(-1)and the LOD was found to be 9.4×10^(-7)mol·L^(-1).The 2∶1 binding stoichiometry between probe and Al^(3+)had been established from Job's plot and ESI-MS studies.The probe was applied to the detection of Al^(3+)in commercial samples,and got the satisfactory results as the recovery rate of standard addition of the method was 94.4~101.1%,and the relative standard deviation(RSD)was 3.08%.
作者
喻艳超
冯俊凯
刘洋
荆军凯
吴绵园
由君
武文菊
YU Yan-chao;FENG Jun-kai;LIU Yang;JING Jun-kai;WU Mian-yuan;YOU Jun;WU Wen-ju(Key Laboratory of Green Chemical Engineering and Technology of College of Heilongjiang Province,College of Materials Science and Chemical Engineering,Harbin University of Science and Technology,Harbin 150080,China)
出处
《化学研究与应用》
CAS
CSCD
北大核心
2022年第6期1438-1442,共5页
Chemical Research and Application
基金
国家自然科学基金项目(21908034)资助
黑龙江省自然科学基金项目(LH2021H001)资助。
