Abstract
In this article, we report on the specific detection of cadmium ions in water using an optofluidic sensor based on a polymeric microresonator functionalized with a cadmium ion specific ligand. A limit of detection down to (0.31 ± 0.07) nM ((33.9 ± 7.8) ng/L) in deionized water and (0.36 ± 0.10) nM ((38.9 ± 10.6) ng/L) in tap water was achieved. When applying a post-measurement digital treatment onto measured signals using a median filter, the sensor limit of detection was reduced to (0.13 ± 0.03) nM ((14.8 ± 0.07) ng/L) in deionized water and to (0.17 ± 0.04) nM ((18.3 ± 4.4) ng/L) in tap water. The chemical sensor could be adapted to build a portable instrument for in situ analysis.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: 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.