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Recognition preference of rhodamine derivative bearing phthalimido gly for Hg2+ by UV-Vis and fluorescence spectroscopy
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نویسنده
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yan f. ,wang m. ,cao d. ,yang n. ,ma b. ,chen l.
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منبع
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journal of spectroscopy - 2013 - دوره : 2013 - - کد همایش:
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چکیده
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An effective hg2+-specific probe 1 was designed and prepared based on phthalimido gly modified rhodamine b. the sensing behavior of probe 1 was studied by uv-vis and fluorescence spectroscopy. probe 1 showed excellent high selectivity and sensitivity towards hg2+ over commonly coexistent metal ions in neutral solution,which could be attributed to the hg2+-triggered ring opening of the spirolactam of the rhodamine moiety and the formation of a 1: 1 1-hg2+ complex. the limit of detection (lod) based on 3 δ blank / k was calculated to be 2.8 × 10-8 m,as well as an excellent linear relationship with the concentration of hg2+ in the range from 0.1 × 10-6 to 1.0 × 10-6 mol/l (r 2 = 0.98927). in addition,the effects of ph,coexisting metal ions,and the reversibility were investigated in detail. © 2013 fanyong yan et al.
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آدرس
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state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China, state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China, state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China, state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China, state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China, state key laboratory of hollow fiber membrane materials and processes,key lab of fiber modification and functional fiber of tianjin,tianjin polytechnic university, China
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Authors
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