5-磷酸吡哆醛缩合罗丹明B席夫碱合成及对Cu^(2+)的识别研究  

Synthesis of the Pyridoxal-5-phosphate-rhodamine B Schiff Base and Identification Studies of Cu^(2+)

作　　者：汤宸 刘星宇 黄志博 张俊 张宇[1] TANG Chen;LIU Xing-yu;HUANG Zhi-bo;ZHANG Jun;ZHANG Yu(School of Chemistry and Chemical Engineering,Huaiyin Normal University,Huai'an Jiangsu 223300,China)

机构地区：[1]淮阴师范学院化学化工学院,江苏淮安223300

出　　处：《淮阴师范学院学报（自然科学版）》2024年第3期224-229,共6页Journal of Huaiyin Teachers College(Natural Science Edition)

基　　金：大学生创新创业训练计划项目(202210323013Z)。

摘　　要：合成了吡哆醛-5-磷酸罗丹明B席夫碱.通过紫外-可见光光谱法研究了该化合物对Cu^(2+)的识别能力:在丙酮-水(体积比1∶1)混合体系中,加入Cu^(2+)后,在526 nm处出现了一个新的吸收峰,并且随着Cu^(2+)的加入,吸收强度逐渐增强.在(0.25~10)×10^(-6) mol/L的浓度范围内,检测结果呈现出良好的线性关系(R^(2)=0.9993),检测限为2.30×10^(-7) mol/L.Schiff base compound BR was synthesized by the reaction of pyridoxal 5-phosphate with rhodamine B-hydrazide.The performance of the compound for Cu^(2+)recognition was detected by UV-vis:in acetonitrile-water(V:V=1∶1)system,the addition of Cu^(2+)resulted in a new absorption peak at 562 nm,and the absorption intensity increased with the addition of Cu^(2+).There was a good linear relationship in the range of(0.25-10)×10^(-6) mol/L(R 2=0.9993),and the detection limit was 2.30×10^(-7) mol/L.

关 键 词：吡哆醛-5-磷酸罗丹明B席夫碱 合成 Cu^(2+)识别 

分 类 号：O657.32[理学—分析化学]