Ratiometric Probe for Rapid Naked Eye Detection of Toxic Hydrazine: Real Time Application in Strip Test, Spray Test and Soil Analysis

Striking colorimetric probe (CynH) for abrupt detection of hydrazine under complete aqueous solution was achieved. The water soluble probe was designed with electron “push–pull” strategy by coupling of 4-hydroxy benzaldehyde and 2, 3, 3-trimethylindolinine. The positively charged N-propylated indoli...

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Bibliographic Details
Published in:Journal of fluorescence 2021-11, Vol.31 (6), p.1917-1925
Main Authors: Vijay, Natarajan, Velmathi, Sivan
Format: Article
Language:English
Subjects:
Analytical Chemistry
Aqueous solutions
Benzaldehyde
Biochemistry
Biological and Medical Physics
Biomedical and Life Sciences
Biomedicine
Biophysics
Biotechnology
Color sensitivity
Colorimetry
Fluorescent Dyes - chemistry
Hydrazines
Hydrazines - analysis
Original Article
Real time
Soil - chemistry
Soil analysis
Soil testing
Spectrometry, Fluorescence
Strip
Time Factors
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Summary:Striking colorimetric probe (CynH) for abrupt detection of hydrazine under complete aqueous solution was achieved. The water soluble probe was designed with electron “push–pull” strategy by coupling of 4-hydroxy benzaldehyde and 2, 3, 3-trimethylindolinine. The positively charged N-propylated indolinine make the probe completely soluble in water. The probe yields eye catching selective detection of hydrazine over other competing analytes with high sensitivity. Obvious colour change was observed from colourless to appearance of bright pink colour with hydrazine. It reacts quickly with hydrazine within 2 min and makes the probe an effective candidate for practical application. The real time application was demonstrated using paper strip to detect hydrazine vapour. This probe is superior to earlier reported probes because of its effective sensing of hydrazine displayed with various applications including real-time strip based sensing, spray test and soil analysis. In all the examinations, the probe yields distinct response with rapid naked eye colour change which overcomes the drawbacks of previous reports.
ISSN:1053-0509
1573-4994
DOI:10.1007/s10895-021-02825-x