Abstract
A gold nanorods (GNRs) nonaggregation-based colorimetric probe has been developed for the detection of S 2− based on that the longitudinal surface plasmon resonance absorption wavelength (LPAW) of GNRs red shifts (Δ λ) and the color of the solution distinctly changes on account of the faster stripping of GNRs along longitudinal axis than transverse axis in the process of GNRs reacting with S 2− ions to form Au 2S complexes on the GNRs surfaces. The GNRs probe exhibits highly sensitive and selective response toward S 2− with a wide linear range from 10.0 to 10000.0 μM. The proposed colorimetric probe can be used to visibly detect S 2− in water samples on line in 15 min with the results agreeing well with those of the optical sensor, showing its great practicality. Moreover, the detection mechanism of the probe is also discussed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
