A new fast response colorimetric and fluorescent probe for the detection of bisulfite and its application on test strips

ABSTRACT

A new carbazole-based colorimetric and fluorescent probe CBB for the detection of bisulfite (HSO₃⁻) has been developed via nucleophilic addition reaction. Probe CBB can detect HSO₃⁻ with excellent sensing properties including high selectivity and sensitivity, fast response (5 s). More importantly, probe CBB system not only can be applied to monitor HSO₃⁻ in environment with excellent solid properties based on test strips but also can be used for the detection of HSO₃⁻ in real-water samples with satisfactory results.

KEYWORDS:

• Fluorescent probe
• Bisulfite
• colorimetric
• test strips
• water samples

Acknowledgments

We greatly acknowledge the support from the Natural Science Key Fund for Colleges and Universities of Jiangsu Province (15KJB530006), the Specialised Research Fund for the Doctoral Program of Higher Education (20123221110012) and the College Students’ Innovation and Open Experimentation Fund Project (201810291109Y).

Disclosure statement

No potential conflict of interest was reported by the authors.

Supplementary material

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Additional information

Funding

This work was supported by the The Specialised Research Fund for the Doctoral Program of Higher Education [20123221110012]; The Natural Science Key Fund for Colleges and Universities of Jiangsu Province [15KJB530006]; the College Students’ Innovation and Open Experimentation Fund Project [201810291109Y].