A 1-hydroxy-2,4-diformylnaphthalene-based fluorescent probe and its detection of sulfites/bisulfite

Shi, Qing; Shen, Ling Yi; Xu, Hong; Wang, Zhi Yong; Yang, Xian Jiong; Huang, Ya Li; Redshaw, Carl; Zhang, Qi Long

Abstract

A novel 1-hydroxy-2,4-diformylnaphthalene-based fluorescent probe L was synthesized by a Knoevenagel reaction and exhibited excellent sensitivity and selectivity towards sulfite ions (SO32−) and bisulfite ions (HSO3−). The detection limits of the probe L were 0.24 μM using UV-Vis spectroscopy and 9.93 nM using fluorescence spectroscopy, respectively. Furthermore, the fluorescent probe L could be utilized for detection in real water samples with satisfactory recoveries in the range 99.20%~104.30% in lake water and 100.00%~104.80% in tap water by UV-Vis absorption spectrometry, and in the range 100.50%~108.60% in lake water and 102.70%~103.80% in tap water by fluorescence spectrophotometry.

Citation

Shi, Q., Shen, L. Y., Xu, H., Wang, Z. Y., Yang, X. J., Huang, Y. L., Redshaw, C., & Zhang, Q. L. (2021). A 1-hydroxy-2,4-diformylnaphthalene-based fluorescent probe and its detection of sulfites/bisulfite. Molecules, 26(11), Article 3064. https://doi.org/10.3390/molecules26113064

• Journal Article Type: Article
• Acceptance Date: May 12, 2021
• Online Publication Date: May 21, 2021
• Publication Date: Jun 1, 2021
• Deposit Date: May 21, 2021
• Publicly Available Date: May 24, 2021
• Journal: Molecules
• Electronic ISSN: 1420-3049
• Publisher: MDPI
• Peer Reviewed: Peer Reviewed
• Volume: 26
• Issue: 11
• Article Number: 3064
• DOI: https://doi.org/10.3390/molecules26113064
• Keywords: Fluorescent probe; Sulfite/bisulfite; Crystal structure; Real sample detection
• Public URL: https://hull-repository.worktribe.com/output/3772572