化学
检出限
荧光
海水
水溶液中的金属离子
查尔酮
光化学
离子
分析化学(期刊)
色谱法
立体化学
有机化学
光学
海洋学
物理
地质学
作者
Hua Liu,Chenglin Guo,Shuju Guo,Junting Fan,Lijun Wang,Dongxia Shi
出处
期刊:Talanta
[Elsevier]
日期:2019-08-01
卷期号:201: 301-308
被引量:19
标识
DOI:10.1016/j.talanta.2019.03.112
摘要
Two efficient chalcone fluorescent probes (probe-KCN1 and probe-KCN2) were developed for the detection of thiophenols. Upon gradual addition of thiophenols to the fluorescent probes, the fluorescence intensity of the emission band at 550 nm is enhanced about 40-fold, with a large Stokes shift (130 nm). Probe-KCN1 responds to thiophenols with a good range of linearity and a detection limit of 79 nΜ (R2 = 0.9915), and Probe-KCN2 responds selectively to thiophenols over other amino acids, common metal ions and other potential interferents with a detection limit of 96 nM (R2 = 0.9978). The low-toxicity probe has been successfully used to detect thiophenols in samples of seawater. These results demonstrate that Probe-KCN is a class of specific probes that might provide a simple way to monitor changes in thiophenols at low concentrations in seawater samples.
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