基于希夫碱水解的新型对 HSO4(-) 选择性比色和荧光化学传感器。
A new selective colorimetric and fluorescent chemodosimeter for HSO4(-) based on hydrolysis of Schiff base.
机构信息
Department of Applied Chemistry, Providence University, 200, Sec. 7, Taiwan Boulevard, Shalu Dist., Taichung City 43301, Taiwan.
出版信息
Spectrochim Acta A Mol Biomol Spectrosc. 2013 Nov;115:552-8. doi: 10.1016/j.saa.2013.06.083. Epub 2013 Jun 29.
Two new receptors 1 and 2 were prepared, and their chromogenic and fluorogenic behaviors toward various anions were investigated. Receptors 1 and 2 show exclusive response toward HSO4(-) ion and also distinguish HSO4(-) from other anions by different color changes in aqueous solution (CH3CN/H2O=4/1, v/v). Between them receptor 1 selectively exhibits a pronounced HSO4(-)-induced fluorescence enhancement. The detection limit for the HSO4(-) ion was determined as (0.24±0.03μM). Thus, the receptor 1 can be used as a colorimetric and fluorescent sensor for the determination of HSO4(-) ion. The sensing mechanism has been suggested to proceed via a hydrolysis process. The hydrolysis product has been isolated and further identified by (1)H NMR spectroscopy, ESI-MS analysis and X-ray diffraction.
制备了两个新的受体 1 和 2，并研究了它们对各种阴离子的显色和荧光行为。受体 1 和 2 对 HSO4(-) 离子表现出独特的响应，并且通过在水溶液中（CH3CN/H2O=4/1，v/v）不同的颜色变化来区分 HSO4(-) 和其他阴离子。其中受体 1 选择性地表现出明显的 HSO4(-) 诱导的荧光增强。HSO4(-) 离子的检测限被确定为（0.24±0.03μM）。因此，受体 1 可以用作测定 HSO4(-) 离子的比色和荧光传感器。所提出的传感机制通过水解过程进行。通过 1H NMR 光谱、ESI-MS 分析和 X 射线衍射分离和进一步鉴定了水解产物。
Zotero 插件