Abstract
A fluorescent turn-on sensor for the selective and sensitive detection of sulfur mustard simulants in water that uses a metal-ion indicator displacement assay (IDA) has been devised. In this IDA approach, a sulfur mustard simulant (the analyte) is allowed to react with a dithiol (1) to form a podand (2). This podand has a strong affinity to bind with Cd(2+) and displaces an indicator (4-methylesculetin, ME) from a Cd(2+)-indicator complex (8) to give a turn-on of fluorescence. The detection is rapid and highly selective, as we did not observe any interference from other electrophiles, even from the oxygen analogue of the mustard simulant. The protocol was successfully used for the detection of the simulant present on surfaces and in soil samples.
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.