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Rhodamine‐labeled Sensor Bead as a Colorimetric and Fluorometric Dual Assay for Hg 2+ Ions in Water
Author(s) -
Ghosh Kumaresh,
Sarkar Tanmay,
Majumdar Anupam
Publication year - 2013
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201200134
Subject(s) - chemistry , rhodamine , aqueous solution , metal ions in aqueous solution , bead , ion , fluorescence , rhodamine b , colorimetry , chromatography , inorganic chemistry , organic chemistry , catalysis , physics , materials science , quantum mechanics , photocatalysis , composite material
Rhodamine‐based receptor 1 recognizes Hg 2+ and Cu 2+ ions in aqueous CH 3 CN, but when immobilized onto Merrifield resin to give bead 2 , this sensor system selectively detects Hg 2+ ions over a series of other metal cations in water. The detection can be performed colorimetrically and fluorimetrically. The ensemble of 2 –Hg 2+ can also distinguish dl ‐homocysteine from L ‐cysteine in water by both analytical methods.