CAJ | 학술논문

设计合成了一种基于新型香豆素水合肼希夫碱荧光探针，结构经1H NMR表征。利用荧光光谱研究了该探针分子对铜离子的识别作用。实验表明，该探针对铜离子具有较好的选择性识别能力，加入铜离子后，该探针的荧光发射强度显著减弱，并且荧光发射强度随着Cu2+浓度的增加而减弱。通过荧光离子滴定实验对其选择性和抗干扰能力进行了系统研究，发现加入其他常见金属离子(如Al3+、Ca2+、Co2+、Cr3+、Fe3+、K+、Mg2+、Na+、Ni2+、Zn2+等)，荧光强度没有发生变化，并且上述各种离子分别与铜离子共存时，对其没有干扰。结果表明，香豆素水合肼希夫碱荧光探针对铜离子具有较高选择性识别。
설계합성료일충기우신형향두소수합정희부감형광탐침，결구경1H NMR표정。이용형광광보연구료해탐침분자대동리자적식별작용。실험표명，해탐침대동리자구유교호적선택성식별능력，가입동리자후，해탐침적형광발사강도현저감약，병차형광발사강도수착Cu2+농도적증가이감약。통과형광리자적정실험대기선택성화항간우능력진행료계통연구，발현가입기타상견금속리자(여Al3+、Ca2+、Co2+、Cr3+、Fe3+、K+、Mg2+、Na+、Ni2+、Zn2+등)，형광강도몰유발생변화，병차상술각충리자분별여동리자공존시，대기몰유간우。결과표명，향두소수합정희부감형광탐침대동리자구유교고선택성식별。
A novel coumarin derivative was synthesized facilely by the condensation reaction of coumarin and hydrazine hydrate, and its structure was characterized by 1H NMR. The recognition properties of the target compound 3 with Cu2+ had been investigated by the fluorescence spectrophotometry. The results showed that the probe 3 exhibited the selective recognition of Cu2+. Upon addition of the concentration of Cu2+ to the solution of compound 3, decreasing fluorescence was observed. The selective and interference of compound 3 were discussed. The fluorescence intensity of compound 3 was no chang when the compound 3 was joined other metal ion (such as Al3+、Ca2+、Co2+、Cr3+、Fe3+、K+、Mg2+、Na+、Ni2+、Zn2+, etc.). The interference was found,when other metal and Cu2+coexist in solution of compound 3. Experiments showed that probe 3 was selective recognition of Cu2+.