Fluorescence lifetime sensors for copper(II) ions based on resonance energy transfer
被引:0
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作者:
Rolinski, OJ
论文数: 0引用数: 0
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Rolinski, OJ
Birch, DJS
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Birch, DJS
机构:
来源:
SENSORS AND THEIR APPLICATIONS VIII
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1997年
关键词:
D O I:
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中图分类号:
TM [电工技术];
TN [电子技术、通信技术];
学科分类号:
0808 ;
0809 ;
摘要:
Two kinds of fluorescence lifetime sensors for copper(II) ions based on energy transfer are presented in this study. The previously developed [I] sensor with near infra-red donor Rhodamine 800 and Cu(II) ion as acceptor is compared with a new system based on Texas Red X as the donor and N,N,N',N'-tetra-methylethylene diamine : Cu(II) complex as acceptor. Enhanced absorption spectra of the ligand:Cu(II) complex increases the rate of energy transfer what improves detection limit for copper concentration in water down to similar to 2 ppb.