The invention discloses a nopinic
alkyl acridine fluorescent probe for detecting hydrazine and
viscosity as well as a preparation method and application of the nopinic
alkyl acridine fluorescent probe. The probe is 2-(2-(5-(4-(3, 3-dimethyl-1, 2, 3, 4-tetrahydro-2, 4-
methylene acridine-9-yl) phenyl)
furan-2-yl) vinyl)-1, 1, 3-trimethyl-1H-benzo [e] indoleonium iodized salt, which is called TA-PFV-BI for short. The probe can detect the
viscosity of a solution, and
red fluorescence emitted by the probe is gradually enhanced along with the improvement of the
viscosity of the solution under the
irradiation of
ultraviolet light with the
wavelength of 365 nm. The probe can also have a specific reaction with hydrazine, so that the
fluorescence color of a probe solution is changed from colorless to bright blue, the detection range is 0-90 mu M, the
response time is within 5 seconds, the
detection limit is 4 * 10 <-8 > M, and the applicable
pH range is 5-10. The probe TA-PFV-BI, as a
bifunctional fluorescent probe capable of simultaneously detecting hydrazine and viscosity, has the advantages of good selectivity, high sensitivity, fast response, wide application range and the like, and shows a good application prospect.