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【答案】应助回帖
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sltmac: 金币+1 2012-09-19 10:35:56
sltmac: 金币+30, 翻译EPI+1, 感谢应助，欢迎常来 2012-10-23 08:45:05
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When A (3 × 10-5mol / L, water) interacted with Na+, K+, Mg2+, Ca2+, Ba2+, Fe3+, Cu2+, Cd2+ and Pb2+ (metal ions 9 × 10-5mol/L), variable fluorescence quenching of A was seen. However, when Zn2+ was introduced in this case, A showed significantly increased intensity of fluorescence emission peak at 454 nm on quenching of the fluorescence emission peak at 370 nm, exhibiting ratiometric fluorescence. Therefore, compound A meets the prerequisite for ratiometric fluorescent probe for detecting Zn2+. |
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