作者:Yafei Du、Feng Li、Shoukang Sun、Baoxiang Zhao
DOI:10.1007/s10895-022-03015-z
日期:2022.11
In this paper, a fluorescent probe (QFR) for the detective work of 4-methylthiophenol was successfully synthesized with a simple but highly effective probe structure. In the buffer solution (V(ACN): V(PBS) = 3:7), by observing the response of the probe after the fluorescence was turned on, we concluded that the probe had good characteristics such as high selectivity, low detection limit (116 nM), and fast response speed (20 min). In addition, the probe was a rare fluorescent probe that detected 4-methylthiophenol but did not respond to thiophenol. Fluorescence intensity was linearly related to 4-methylthiophenol concentration in the range of 0 to 2 equivalents (0–10 μM). The probe demonstrated good results in the determination of the recovery rate (92.28% to 110.1%) of actual water samples, and has great potential in environmental monitoring.
本文以一种简单而高效的探针结构成功合成了用于检测4-甲基苯硫酚的荧光探针(QFR)。在缓冲溶液(V(ACN):V(PBS)=3:7)中,通过观察荧光开启后探针的反应,我们得出结论:该探针具有高选择性、低检测限(116 nM)和快速响应速度(20 min)等优良特性。此外,该探针是一种罕见的荧光探针,它能够检测4-甲基苯硫酚,但对苯硫酚没有反应。在0至2当量(0–10 μM)范围内,荧光强度与4-甲基苯硫酚浓度呈线性关系。该探针在实际水样回收率测定(92.28%至110.1%)中表现良好,在环境监测中具有巨大潜力。