期刊論文
| 學年 | 103 |
|---|---|
| 學期 | 2 |
| 出版（發表）日期 | 2015-04-21 |
| 作品名稱 | Ligand-Doped Liquid Crystal Sensor System for Detecting Mercuric Ion in Aqueous Solutions |
| 作品名稱（其他語言） | |
| 著者 | Chih-Hsin Chen; Yi-Cheng Lin; Hao-Hsiang Chang; Adam Shih-Yuan Lee |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Anal. Chem. 87(8), p.4546-4551 |
| 摘要 | We developed a liquid crystal (LC) sensor system for detecting mercuric ion (Hg2+) in aqueous solutions. In this system, 4-cyano-4′-pentyl biphenyl (5CB) was doped with a sulfur- and nitrogen-containing ligand 5-(pyridine-4-yl)-2-(5-(pyridin-4-yl)thiophen-2-yl)thiazole (ZT) as the Hg2+ specific LCs. When the system was immersed in the solution containing Hg2+, the complex of ZT and Hg2+ formed, which disrupted the orientation of LC and lead to a dark-to-bright transition of the image of LCs. From mercuric binding titrations monitored by UV–vis spectroscopy, it was found that 1:1 Hg2+/ZT complexes were formed. The limit of detection (LOD) of the system to Hg2+ is 10 μM, and it did not respond to Cd2+, Zn2+, Cu2+, Pb2+, Fe+, Mg2+, Ca2+, Na+, and K+. Besides, we also demonstrated that this system is capable of detecting Hg2+ in tap water and pond water. Because the signal of this system is colorful under ambient light, which is readily understood by normal users, it can be used as a portable device to monitor the water quality at any location. |
| 關鍵字 | |
| 語言 | en |
| ISSN | 0003-2700; 1520-6882 |
| 期刊性質 | 國外 |
| 收錄於 | SCI |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | USA |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 |
機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/120793 ) |