Lv Hongshui, Sun Haiyan
State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China.
Spectrochim Acta A Mol Biomol Spectrosc. 2022 Feb 15;267(Pt 1):120527. doi: 10.1016/j.saa.2021.120527. Epub 2021 Oct 30.
A novel colorimetric and ratiometric NIR fluorescent probe for Hg was designed and synthesized based on a coumarin-benzopyrylium platform. The ring-open form of the probe exhibits NIR absorption (670 nm) and emission (720 nm). The probe shows high sensitivity, high selectivity and rapid response (30 s) to Hg. The detection limit was as low as 6.94 nM. The probe shows high stability in a wide pH range from 2 to 10. Moreover, the probe can be employed for detecting Hg in food and biological samples.
基于香豆素-苯并吡喃鎓平台设计并合成了一种新型的用于检测汞的比色和比率近红外荧光探针。该探针的开环形式表现出近红外吸收（670nm）和发射（720nm）。该探针对汞表现出高灵敏度、高选择性和快速响应（30秒）。检测限低至6.94 nM。该探针在2至10的宽pH范围内具有高稳定性。此外，该探针可用于检测食品和生物样品中的汞。
