An AIE dye based smartphone and LDA integrated portable, intelligent and rapid detection system as trace water indicator and cyanide detector. (July 2019)

• Record Type: Journal Article
• Authors: Chen, Linfeng; Tian, Xike; Li, Yong; Yang, Chao; Lu, Liqiang; Zhou, Zhaoxin; Nie, Yulun
• Is Part Of: Dyes and pigments. Volume 166(2019)
• Page Start: 1
• Page End: 7
• Publication Date: 2019-07
• Subjects: Cyanide detection -- Water detection -- Smartphone -- Linear discriminant analysis; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2019.03.008
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: Portable, rapid, accurate and on-site detection of analysis target has always been the goal of continuous efforts in the field of analysis. In this work, a novel intelligent and rapid detection system based on an AIE dye (TPA-DCV) was established for portable and on-site detection of trace water in organic solvents and CN − in water by integrating the smartphone and linear discriminant analysis (LDA). The TPA-DCV displayed remarkable solvatochromism effect and showed different fluorescence colors to different water contents of different solvents, with the minimum detection limit of 54 ppm. In addition, TPA-DCV also exhibited specific response to CN −, and showed significant fluorescence changes to different amounts of CN − . With the assist of this detection system, these different fluorescence color signals could be accurately classified in canonical score plot. What's more, the classification and distribution of fluorescence color in canonical score plot showed regular change with the target concentration, which could be used to quantify the trace water and CN − . The rationality and practicability of this detection system were preliminary verified by a large number of real sample analyses. This detection system greatly simplifies the analysis process, which is in the proof of intelligent and rapid detection just using a simple color analysis without any instrument test, which may be a big step forward. Graphical abstract: Image 1 Highlights: An AIE dye TPA-DCV that exhibits both AIE and solvatochromic effects has been synthesized. A smartphone and LDA integrated rapid detection system for trace water and CN - is established. The trace water and CN - can be rapid and intelligent detected without any instrument testing.