5-磷酸吡哆醛缩合罗丹明B席夫碱合成及对Cu2+的识别研究

Synthesis of the Pyridoxal-5-phosphate-rhodamine B Schiff Base and Identification Studies of Cu2+

汤宸 ¹刘星宇 ¹黄志博 ¹张俊 ¹张宇¹

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作者信息

1. 淮阴师范学院化学化工学院,江苏淮安 223300
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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Cu2+的识别能力:在丙酮-水(体积比1∶1)混合体系中,加入Cu2+后,在526 nm处出现了一个新的吸收峰,并且随着Cu2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(R2=0.9993),检测限为2.30×10-7 mol/L.

Abstract

Schiff base compound BR was synthesized by the reaction of pyridoxal 5-phosphate with rhoda-mine B-hydrazide.The performance of the compound for Cu2+recognition was detected by UV-vis:in acetoni-trile-water(V∶V=1∶1)system,the addition of Cu2+resulted in a new absorption peak at 562 nm,and the absorption intensity increased with the addition of Cu2+.There was a good linear relationship in the range of(0.25-10)× 10-6 mol/L(R 2=0.999 3),and the detection limit was 2.30 × 10-7mol/L.

关键词

吡哆醛-5-磷酸罗丹明B席夫碱/合成/Cu2+识别

Key words

pyridoxal-5-phosphate-rhodamine B schiff base/synthesis/Cu2+recognition

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基金项目

大学生创新创业训练计划项目(202210323013Z)

出版年

2024

淮阴师范学院学报(自然科学版)

淮阴师范学院

淮阴师范学院学报(自然科学版)

影响因子：0.259

ISSN：1671-6876

参考文献量1

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