罗丹明B类荧光探针的合成及其对铜离子的检测
Synthesis of fluorescent probe based on rhodamine B and its appalication in the determination for Cu2+
以罗丹明B和乙酰氯为原料，合成了罗丹明B类Cu2+荧光增强型分子探针RAC。在乙腈/水(1:9，v/v，pH=7.0)溶液中，该探针本身无色，加入Cu2+后很快变为桃红色，荧光强度明显增强，而其它常见金属离子如Ag+, Ca2+, Hg2+, Fe3+, Mg2+, Cd2+, Co2+, Ni2+, K+, Zn2+, Pb2+和Na+不引起或引起很小的紫外-可见或荧光光谱变化。该探针与Cu2+的结合比例为1:1，探针能选择性的检测Cu2+，且检出限浓度可达到10-6molL-1，可用于环境中铜离子的检测。
new fluorescence-enhanced Cu2+ probe RAC based on rhodamine B and Acetyl Chloride was synthesized. It was found that the fluorescence intensity of RAC increased with the addition of Cu2+ in acetonitrile/water(1:9, v/v, pH=7.0)solution. The addition of Cu2+ ion led to obvious color change from colorless to pink as well as significantly enhanced fluorescence, while other common metal ions such as Ag+, Ca2+, Hg2+, Fe3+, Mg2+, Cd2+, Co2+, Ni2+, K+, Zn2+, Pb2+ and Na+ induced no or much smaller color/fluorescent spectral changes. The selectivity and sensitivity of RAC were very high. RAC formed 1:1 complex with Cu2+, and has the detection limit of 10-6 molL-1 which can be used in the detection of Cu2+ in environment.
魏荣严、赵峰、严世强
化学精细化学工业化学试剂工业
荧光探针铜离子罗丹明B乙酰氯
luorescence probeCu2+rhodamine BAcetyl Chloride
魏荣严,赵峰,严世强.罗丹明B类荧光探针的合成及其对铜离子的检测[EB/OL].(2013-03-07)[2025-07-21].http://www.paper.edu.cn/releasepaper/content/201303-289.点此复制
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