Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education, College of Chemistry and Chemical Engineering, Hainan Normal University, Haikou, 571158, China.
J Fluoresc. 2017 Sep;27(5):1871-1875. doi: 10.1007/s10895-017-2124-0. Epub 2017 Jun 3.
A new rhodamine-based fluorescent chemosensor (1) has been designed and synthesized by linking rhodamine 6G hydrazide with N-methylisatin via an imine linkage. The receptor can selectively recognize and sense Pb, Hg and Cd by showing different fluorescence characteristics. In ethanol/HEPES buffer medium, the addition of Cd caused a yellowish-green fluorescence, while the presence of Pb or Hg gave rise to an orange fluorescence. Additionally, the sensor shows an irreversible fluorescence response to Pb and reversible fluorescence responses to Hg and Cd.
一种新型的基于若丹明的荧光化学传感器（1）已经被设计和合成，通过将若丹明 6G 酰肼与 N-甲基靛红通过亚胺键连接。该受体可以通过显示不同的荧光特性选择性地识别和检测 Pb、Hg 和 Cd。在乙醇/HEPES 缓冲介质中，加入 Cd 会导致黄绿色荧光，而 Pb 或 Hg 的存在则会产生橙色荧光。此外，该传感器对 Pb 具有不可逆的荧光响应，对 Hg 和 Cd 具有可逆的荧光响应。
