2-[3-(2-aminoethylsulfanyl)propylsulfanyl]ethanamine bearing dansyl subunits: An efficient, simple, and rapid fluorometric sensor for the detection of mercury(II) ions

• Main Authors: Wanichacheva N., Kamkaew A., Watpathomsub S., Lee V., Grudpan K.
• Format: Journal
• Published: 2017
• Online Access: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=77956859740&origin=inward; http://cmuir.cmu.ac.th/jspui/handle/6653943832/43230
• Institution: Chiang Mai University

A novel fluorometric sensor possessing two dansyl moieties based on 2-[3-(2-aminoethylsulfanyl)propylsulfanyl]ethanamine 1 was prepared by a ready synthetic approach using a conventional two-step synthesis. 1 exhibits highly sensitive and selective on-off Hg 2+ fluorescence quenching behavior in aqueous acetonitrile solutions and is shown to discriminate various competing metal ions such as Cu 2+ , Ag + , Ca 2+ , Mn 2+ , Zn 2+ , Ba 2+ , Cd 2+ , Co 2+ , Na + , and K + exhibiting a detection limit of 7 nM. or 1.4 ppb with a working range of 1.8-15 ppb. © 2010 The Chemical Society of Japan.