Aminobenzopyranoxanthene based salicylhydrazone probe for colorimetric detection of Cu2+

被引：0
|
作者：
Yang Y. [1 ,2 ]
Pei C. [1 ]
Gao C.-Y. [1 ]
Ye J. [1 ]
Liu J. [1 ,2 ]
机构：
[1] Inner Mongolia Key Laboratory for the Natural Products Chemistry and Functional Molecular Synthesis, Tongliao
[2] College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao
来源：
Sensors International | 2023年 / 4卷
基金：
中国国家自然科学基金;
关键词：
ABPX; Absorption intensity; Colorimetric; Cu[!sup]2+[!/sup; Spirohydrazone;
D O I：
10.1016/j.sintl.2022.100214
中图分类号：
学科分类号：
摘要：
A new colorimetric probe aminobenzopyranoxanthene salicylhydrazone (ABPX-Sal) has been synthesized by condensation of salicylaldehyde with aminobenzopyranoxanthene hydrazide (ABPX-hy). Owing to its spirohydrazone structure, this probe showed a significant absorption enhancement at 419 ​nm in the presence of Cu2+, and the color changed from colorless to yellow. There was a good linear relationship between the absorption intensity of ABPX-Sal and the amount of Cu2+ (R2 = ​0.9928), and the detection limit was calculated to be 0.912 ​μM. The binding mode between ABPX-Sal and Cu2+ was 1:2, which was proved by ESI-MS. The sensing mechanism was revealed to be a spiro-ring enacted coordination process by DFT calculation. The desired level of selectivity, sensitivity (within 30 ​s), and reusability made this probe very practical in acidic samples. © 2022 The Authors
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